Modern Database Management 11th Edition by Jeffrey A. HofferUse th.pdf
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Modern Database Management 11th Edition by Jeffrey A. Hoffer Use the UNION statement to provide a combined listing of care center names and their locations as well as laboratories and their location. The list should be sorted by location, in ascending order. (You should use aliases to rename the fields in this query.) Please provide results! Solution The UNION operator is used to combine the result-set of two or more SELECT statements.The UNION operator selects only distinct values by default. To allow duplicate values, use the ALL keyword with UNION. Syntax: SELECT column_name(s) FROM table1 UNION ALL SELECT column_name(s) FROM table2; Now Let us consider that there are two tables namely care_center_t and laboratory_t where the care_center_t contains rows like care_center name ,location1 and the laboratory_t consists of rows such as laboratories and Locations2. SELECT operator is used in selecting of particular rows from the table. So, now we select rows namely care_center_name and location1 from care_center_t table and Loboratories and location2 from laboratory_t table. The Database Query for the above problem is SELECT care_center_name as name,location1 as location from care_center_t UNION all Select laboratory as name ,location2 as location from laboratory_t.
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Pluto has been hard to measure from Earth because of its atmosphere. .pdf
Pluto has been hard to measure from Earth because of its atmosphere. In 2007 Young, Young,
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Loops and ArraysObjectivesArrays are a series of elements consi.pdf
Loops and Arrays
Objectives:
Arrays are a series of elements consisting of the same type (For ex: all integers), in a contiguous
chunk of memory. The elements can be individually referenced by indexing the array.
You must specify the type of data stored in an array, and each element in any array must be of
the same type.
An array has a static size -- they cannot grow any larger than the size you tell it to be when you
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To access the value at that index of the array: for (int i = 0; i < 10; i++){
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To access the memory address of the array element: for (int i = 0; i < 10; i++){
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Creating an Array and Initializing
When you declare an array, you will get an uninitialized section of memory. If you want to
create an array of numbers, you would do:
int intNumbers [10];
double dblNumbers[10];
Then, putting element in the array can be set up by using the index of the array element you want
to change:
intNumbers[0] = 3; intNumbers[1] = 5; intNumbers[2] = 6; intNumbers[3] = 8;
1. Write a program that uses a for loop.
2. Declare and initialize and array.
3. Practice the array operations print and modify.
When you create an array, you do so to capture a group of items that all need to be treated
separately, but also need to grouped together for some purpose. For example, when you think
about a song, each note in the song is a separate sound, but they all need to be included together
in a certain order to make up the song.
To initialize the array:
int intNum [5] = {16, 3, 20, 4, 21}; (Hint: notice the syntax difference initializing this array
versus the one above)
Retrieving/Adding/Changing elements
To access or retrieve individual elements in an array, the syntax is square brackets and the
element index (starting from 0):
intNumbers[0]; will be the first item in the intNumbers array. intNumbers[1]; will be the second
item in the intNumbers array.
Below is an example of a basic 2D array. It shows how we access certain elements shown in the
arrayName[row][column] format. This will be helpful for a future assignment.
We can change the values in the array using the index of the individual items, such as
Example 1:
int intNumbers[2];
intNumbers[0] = 5;
intNumbers[1] = 7;
intNumbers[1] = intNumbers[1] * 2 cout << intNumbers[1] << endl;
Example 2:
//this will print the value 14
intNumber[1] = 10;
Example 3:
for (int i = 0; i < 10; i++){
intArray[i] = i;
cout << intArray[i] << endl;
//this will update the value to 10 at that index
//will set what the values are in that position //will print out the value of i at each index
}
TO DO: Create an array in your main function
1) Create an array of 20 doubles, using a variable name of your choosing. Assign values to your
array using a for loop:
for (int i = 0; i < 20; i++) myDoubles[i] = i;
where myDoubles is the name of the variable created.
2) Print out the values in another for loop using: cout << “Stuff to print” << endl;
3) Now, using your array an.
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Loops and Arrays
Objectives:
Arrays are a series of elements consisting of the same type (For ex: all integers), in a contiguous
chunk of memory. The elements can be individually referenced by indexing the array.
You must specify the type of data stored in an array, and each element in any array must be of
the same type.
An array has a static size -- they cannot grow any larger than the size you tell it to be when you
create it.
To access the value at that index of the array: for (int i = 0; i < 10; i++){
cout<< intArray[i]<< endl; }
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cout << intArray + i << endl; }
Creating an Array and Initializing
When you declare an array, you will get an uninitialized section of memory. If you want to
create an array of numbers, you would do:
int intNumbers [10];
double dblNumbers[10];
Then, putting element in the array can be set up by using the index of the array element you want
to change:
intNumbers[0] = 3; intNumbers[1] = 5; intNumbers[2] = 6; intNumbers[3] = 8;
1. Write a program that uses a for loop.
2. Declare and initialize and array.
3. Practice the array operations print and modify.
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separately, but also need to grouped together for some purpose. For example, when you think
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versus the one above)
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element index (starting from 0):
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int intNumbers[2];
intNumbers[0] = 5;
intNumbers[1] = 7;
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Example 2:
//this will print the value 14
intNumber[1] = 10;
Example 3:
for (int i = 0; i < 10; i++){
intArray[i] = i;
cout << intArray[i] << endl;
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//will set what the values are in that position //will print out the value of i at each index
}
TO DO: Create an array in your main function
1) Create an array of 20 doubles, using a variable name of your choosing. Assign values to your
array using a for loop:
for (int i = 0; i < 20; i++) myDoubles[i] = i;
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Let f X Y be a function.True or FalseA sufficient condition for f .pdf
Let f: X Y be a function.True or False?A sufficient condition for f to be one-to-one is that for all
elements y in Ym there is at most one x in X with f(x)= y.
Solution
true.
A function f from X to Y is called one-to-one (or 1-1) if whenever
f (x) = f (y) then x = y.
No element of Y is the image of more than one element in X.
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Its your third week on the job at Panache Inc. Last week, you made.pdf
It\'s your third week on the job at Panache Inc. Last week, you made sure all investment
transactions for trading, available-for-sale, held-to-maturity, and equity securities were properly
recorded. You are reviewing the financial statement reporting for the securities and have found a
newspaper clipping dated December 31 that indicates the price of the stock of Omni company
had dropped the day before because of the company\'s severe financial difficulties. While the
company is not expected to fail, the article states the earnings of the company have permanently
declined due to changes in the new-homes market. You do a quick check of the stock price on
that day and find that the stock closed at $8 per share. Panache owns 10,000 shares of Omni\'s
stock as an available-for-sale security. The original cost of the stock was $20 per share, and the
fair value at the last reporting date (September 30, 2016) was $15 per share. You have just begun
to write a memo to the president of the company, Mr. Cartwright, about this investment when he
stops by your office and says, \"I have a question for you.\" He says, \"As you know, we use a
special metal called tellurium in our cars. It takes 10 pounds for each car we build. I had a
feeling last summer that tellurium prices were going to go up in October, so Mr. Brown told me
he could lock the prices in by using a dirigible. Did he do that?\" \"It was probably a derivative,
Mr. Cartwright,\" you reply. \"Let me look through the files and see what I can find, and I\'ll get
back to you. I\'ll include my findings in the memo I\'m writing to you about another
investment.\" You locate a file labeled tellurium futures, and inside you find several documents.
The first one is a handwritten note dated August 31, 2015, that says: Agreed to tellurium futures
contract expiring December 31, 2015; agreement gives Panache the right to purchase 2,000
pounds of tellurium at a price of $500 per pound. Signed, C. Brown 8/31/2015. The second paper
is a schedule showing prices of tellurium: Date Price 8/31/2015 $500 9/30/2015 $530
10/31/2015 $550 The third document is an invoice for the purchase of 2,000 pounds of tellurium
on October 31 at $550 per pound. There is a note on the invoice in Ms. Brown\'s handwriting
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purchased in October would have been used to produce the 200 cars made in November. The
cars produced in November were sold in December for $15,000 each. The total cost to produce
the cars was $12,000 each. You are required to: Prepare all journal entries that should have been
recorded related to the futures contract, including any entries needed for the September 30, 2016,
financial statements; the purchase of the tellurium; and the sale of the cars in December. Create
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In JAVA Write a program that uses a two-dimensional array to sto.pdf
In JAVA
Write a program that uses a two-dimensional array to store the highest and lowest temperatures
for each month of the year. The program should output the average high, average low, and
highest and lowest temperatures of the year. Your program must consist of the following
methods:
a. Method getData: This method reads and stores the data in the two-dimensional array.
b. Method averageHigh: This method calculates and returns the average high temperature of the
year.
c. Method averageLow: This method calculates and returns the average low temperature of the
year.
d. Method indexHighTemp: This method returns the index of the highest temperature in the
array.
e. Method indexLowTemp: This method returns the index of the lowest temperature in the array.
(These methods must all have the appropriate parameters.)
Solution
CODE
package test;
import java.util.Scanner;
public class Temperatures {
//declaring temperatures as a static array
public static double[][] temperatures = new double[12][2];
public static void main(String[] args) {
getData();
System.out.println(\"Average high is : \"+averageHigh());
System.out.println(\"Average low is : \"+averageLow());
System.out.println(\"Month of highest temperature is : \"+indexHighTemp());
System.out.println(\"Month of lowest temperature is : \"+indexLowTemp());
}
//to get data of temperatures for all months from user
public static void getData() {
System.out.println(\"Enter details\");
Scanner in = new Scanner(System.in);
for (int i = 0; i < 12; i++) {
System.out.println(\"Enter highest temperature for month \" + (i + 1));
temperatures[i][0] = in.nextDouble();
System.out.println(\"Enter lowest temperature for month \" + (i + 1));
temperatures[i][1] = in.nextDouble();
}
}
//to get avegare of highest temperatures of all months
public static double averageHigh() {
double avg = 0;
for (int i = 0; i < 12; i++) {
avg += temperatures[i][0];
}
return avg / 12;
}
//to get sverage of lowest temperatures of all months
public static double averageLow() {
double avg = 0;
for (int i = 0; i < 12; i++) {
avg += temperatures[i][1];
}
return avg / 12;
}
//to get index of highest tempeartures of all months
public static int indexHighTemp() {
int index = 0;
double max = Double.MIN_VALUE;
for (int i = 0; i < 12; i++)
if (temperatures[i][0] > max)
{
index = i;
max =temperatures[i][0];
}
return index+1;
}
//to get index of lowest tempeartures of all months
public static int indexLowTemp() {
int index = 0;
double min = Double.MAX_VALUE;
for (int i = 0; i < 12; i++)
if (temperatures[i][1] < min)
{
index = i;
min = temperatures[i][1];
}
return index+1;
}
}
SAMPLE OUTPUT
Enter details
Enter highest temperature for month 1
60
Enter lowest temperature for month 1
50
Enter highest temperature for month 2
50
Enter lowest temperature for month 2
40
Enter highest temperature for month 3
40
Enter lowest temperature for month 3
30
Enter highest temperature for month 4
30
Enter lowest temperature for month 4
20
Enter highest temperature f.
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How do CCMI model help with the improvements and comparison of the process life cycle?
Solution
CCMI: Capability improvement model integration which is a method of improvement model
which includes the top perfomances advanced in improvement of software,acquired from
industry .CMMI isolates the top perfomance knowledge to discrete levels ,and every level
advances to elevated level.each and every level inscribe growth and nurture of the life cycle.
CMMI is uniquely applied to software evolution organisations and focus on uniterrupted
improvement..
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How would you implement a node classs and an edge class to create a undirected and a directed
graph using c++
Please provide a default constructor, copy constructor, accessing functions , and destructor for
each of the classes to print out a graph
( node, edge , directed ,undirected )
V={1,3,3,4,5,6}
E={(1,2),(1,4),(2,3),(2,4),(2,5),(3,4),(5,3),(6,3),(6,5)}
How would you implement a node classs and an edge class to create a undirected and a directed
graph using c++
Please provide a default constructor, copy constructor, accessing functions , and destructor for
each of the classes to print out a graph
( node, edge , directed ,undirected )
V={1,3,3,4,5,6}
E={(1,2),(1,4),(2,3),(2,4),(2,5),(3,4),(5,3),(6,3),(6,5)}
Please provide a default constructor, copy constructor, accessing functions , and destructor for
each of the classes to print out a graph
( node, edge , directed ,undirected )
V={1,3,3,4,5,6}
E={(1,2),(1,4),(2,3),(2,4),(2,5),(3,4),(5,3),(6,3),(6,5)}
Solution
#include
#include
#include
#include
#include
using namespace std;
class Graph;
class Edge;
class Vertex;
class Edge {
int weight;
Vertex * vertex1;
Vertex * vertex2;
public:
int getWeight() const {return weight;}
Vertex* getV1() const {return vertex1;}
Vertex* getV2() const {return vertex2;}
void setWeight(int w){weight=w;}
void setV1(Vertex * v){vertex1=v;}
void setV2(Vertex * v){vertex2=v;}
Edge(int w, Vertex* v1, Vertex* v2){weight=w;vertex1=v1;vertex2=v2;}
};
class Vertex {
string label;
vector edgesLeavingMe;
bool visited;
public:
string getLabel() const {return label;}
vector getEdges()const{return edgesLeavingMe;}
Edge * getEdgeTo(string d){
for (vector::iterator it = edgesLeavingMe.begin(); it != edgesLeavingMe.end(); ++it){
if ((*it)->getV2()->getLabel()==d){
return (*it);
}
}
return 0;
}
void setVisited(bool v){visited=v;}
bool getVisited() {return visited;}
void addEdge(Edge * e){edgesLeavingMe.push_back(e);}
void removeEdge(Edge *
e){edgesLeavingMe.erase(remove(edgesLeavingMe.begin(),edgesLeavingMe.end(),e),edgesLea
vingMe.end());}
void removeEdgeTo(string l){
Edge * e = getEdgeTo(l);
removeEdge(e);
}
Vertex(string l){label=l; visited=false;}
};
class Graph {
vector edges;
map vertices;
public:
Vertex * addVertex(string label){
Vertex * v = new Vertex(label);
vertices[label]=v;
return v;
}
Edge * addEdge(int w, string from, string to);
void removeEdge(string from, string to);
Vertex * getVertexWithlabel(string l);
void removeVertex(string l);
};
class UnDirectedGraph {
vector edges;
map vertices;
public:
Vertex * addVertex(string label){
Vertex * v = new Vertex(label);
vertices[label]=v;
return v;
}
map getVertices(){return vertices;}
vector getEdges(){return edges;}
Edge * addEdge(int w, string from, string to){
if (vertices.find(from) != vertices.end() && vertices.find(to) != vertices.end()){
Vertex * vfrom = vertices.find(from)->second;
Vertex * vto = vertices.find(to)->second;
Edge * e = new Edge(w,vfrom,vto);
(*vfrom).addEdge(e);
(*vto).addEdge(e);
edges.push_back(e.
How do you evaluate your own global mind set levelsSolutionAN.pdf
How do you evaluate your own global mind set levels?
Solution
ANSWER:
A global mindset is refers to a special trait of global leadership which is associated with
manager-employee relationship, trust, and organizational commitment. There are prime three
features of global mindset namely- intellectual capital, psychological capital and social capital.
While evaluating my own global mind set levels I have to consider all these features. Intellectual
capital is my ability to understand and process new information, which are helpful to learn about
people of different cultures and know how to respond. Psychological capital, is evaluating my
openness, cognitive flexibility and willingness to work with other cultures. Social capital is the
relationships network that I have with their colleagues from different cultures, and can help me
to act in a trustworthy manner and build relationship with others from different cultures. The
development of a global mindset that sub-includes cultural intelligence and global business
orientation will help me to think globally and swiftly act to maintain the competitiveness in
multicultural organizations and international markets. Keeping all these above points, I can
properly designed questionnaire survey can be of useful in global mindset evaluation for me as
well as others. My global mindset affects the cognitive capabilities and the decision-making
patterns, thus exerting significant influence on the strategic capabilities of firms as well as my
personal life..
Here are two datasetsDataset A 64 65 66 68 70 71 72Dataset B .pdf
Here are two datasets:
Dataset A: 64 65 66 68 70 71 72
Dataset B: 64 65 66 68 70 71 720
For dataset A, the mean and median are 68. Looking at dataset B, notice that all of the
observations except the last one are close together. Which measure will be affected by this last
observation in dataset B?
Mean
or
Median
Solution
Data set B: Mean will be affected since we have outlier(720) in the data hence we know that
outlers are very much affected by mean . But no affect on the Median.
Getting StartedCreate a class called Lab8. Use the same setup for .pdf
Getting Started
Create a class called Lab8. Use the same setup for setting up your class and main method as you
did for the previous assignments. Be sure to name your file Lab8.java. Additionally, make
another file called Arrays.java. This file will be an object, so simply start it off by declaring an
Arrays class. You can copy the following skeleton and fill in the appropriate code below each of
the comments:
public class Arrays {
/ Instance Variables
// Constructors
// findMin 1
// findMax
// calcSum
// calcAverage
// toString
}
Task Overview
Your task for this lab is to create a class called Arrays with some array processing methods. This
class will maintain an array and the number of elements present in it. Additionally, methods will
be available to display the current min and max elements along with the average of all of them.
Finally, a toString() method will be available to cleanly display all the array elements. Finally,
you will write a simple driver class to test out the above Arrays class.
Part 1: Instance Variables for Arrays
The first thing to do for the Arrays class is to set up its instance variables. Declare the following
(private) instance variables:
• An int array called array ? this will be the array we will be writing methods for.
• An int called count - this represents the number of valid elements in the array.
Part 2:
Constructors for Arrays The Arrays class will have two constructors. The first constructor takes
the maximum size of the array as input as a parameter and initializes the array instance variable
appropriately. It also sets count to size. Finally, it will initialize all of the array elements to some
values between 0 and 10, inclusive. To create this constructor, follow these steps:
• Import java.util.Random to make use of the random number generator.
• Create a constructor with the following header: public Arrays(int size)
• Initialize your array variable and set its size to size (see the chart on page 252 for reference on
initializing arrays). Be very careful that you are setting the value of your array instance variable,
as opposed to creating a new variable called array.
• Set the value of the count variable to size because we will be populating the entire array.
• Copy the following code to the constructor in order to generate random values between 0 and
10, inclusive:
Random rand = new Random();
for (int i = 0; i < count; i++)
{
array[i] = (rand.nextInt(10));
}
Next, create another constructor with the following header: public Arrays(int[] arr). This
constructor will initialize the class by using the passed arr argument in order to fill its instance
variables. The following things need to be done inside of this constructor:
• Set the array variable equal to arr.
• Set the count variable equal to the length of the array.
Part 3: Displaying the Output findMin()
The first method of this class will search the array for the minimum element. Copy the following
code for the findMin method. Note how the count i.
For this homework, you will develop a class called VendingMachine th.pdf
For this homework, you will develop a class called VendingMachine that simulates an imaginary
vending machine at CSUMB. In the program, a user can buy a bottle of water ($1.50), a coffee
($2.00), a bag of chips ($1.00),
and a chocolate bar ($2.50) from the machine. The user can buy several items if they are
available
in the machine. For the payment, a user can use only cash (including coins). Additionally, an
administrator of the machine can reset or refill the machine.
1 Demo Program
The following code presents a demo program that uses the VendingMachine class.
public class VendingMachineDemo {
public static void main(String[] args) {
VendingMachine machine1 = new VendingMachine(100);
VendingMachine machine2 = new VendingMachine(200, \"Library\");
System.out.println(\"===== Welcome to the CSUMB Vending Machine =====\");
System.out.println(machine1);
System.out.println(\"\");
System.out.println(machine2);
System.out.println(\"\ === Compare Two Machines ===\");
System.out.println(machine1.equals(machine2));
machine1.setLocation(\"BIT104\");
machine1.setName(50);
machine1.setName(100);
System.out.println(\"\ === Machine Reset ===\");
machine1.reset(4, 5, 0, 6); // In this method, we assume that a machine
// administrator resets the contents of
// a machine.
machine1.addItems(1,2,3,4); // A system admin can add items to the machine
System.out.println(machine1);
System.out.println(\"\");
machine1.displayMenu();
System.out.println(\"\ === Buy an Item ===\");
machine1.buyItem();
System.out.println(\"\ === Buy another Item ===\");
1
if(machine1.buyItem(1, 4) == false) {
System.exit(1);
}
System.out.println(\"\ === Return Two Items ===\");
machine1.returned(1, 2);
machine1.returned(2, 3);
System.out.println(\"\ === Buy another Item ===\");
machine1.buyItem(3, 5);
System.out.println(\"\ === Pay for items selected. ===\");
if(machine1.payment()) {
System.out.println(\"\ === Valid payment. ===\");
machine1.displayReceipt();
} else {
System.out.println(\"\ === Invalid payment. Try one more time. ===\");
if(machine1.payment()) {
System.out.println(\"\ === Print Receipt ===\");
machine1.displayReceipt();
} else {
System.exit(1);
}
}
machine1.addItems(5,5,5,5);
System.out.println(\"\ === Machine Status ===\");
machine1.status();
System.out.println(\"\ ===== Thank you! =====\");
}
}
Sample Run of the Demo Program: The following presents a sample result of the demo
program.
Read the result very carefully to identify the operations of the program.
===== Welcome to the CSUMB Vending Machine =====
Serial Number: 100
Location: UNKNOWN
Contents:
Water: 0
Coffee: 0
Sun Chips: 0
Chocolate Bar: 0
Serial Number: 200
Location: Library
Contents:
Water: 0
Coffee: 0
Sun Chips: 0
2
Chocolate Bar: 0
=== Compare Two Machines ===
false
=== Machine Reset ===
Serial Number: 100
Location: BIT104
Contents:
Water: 5
Coffee: 7
Sun Chips: 3
Chocolate Bar: 10
===== Vending Machine Menu =====
1. Water............$1.50
2. Regular Coffee...$2.00
3. Sun Chips........$1.00
4. Chocolate Ba.
Discuss what is SSH and the advantages and disadvantages of using it.pdf
Discuss what is SSH and the advantages and disadvantages of using it on your Linux
distribution.
Also discuss how to control ssh access and how you configure this service.
Solution
SSH is also known as Secure Socket Shell. It is a network protocol that provides administrators
with a secure way to access a remote computer.
For advantages of it, SSH is widely used by network administrators for managing systems and
applications remotely. It allows them to log in to another computer over a network, execute
commands and move files from one computer to another.
The biggest disadvantage would be people logging in as the computer\'s administrator over SSH
and this can be done by brute force for the password.
To limit ssh access to a linux machine based on originating IP address, edit /etc/hosts.allow:.
Describe the differences between the three major physical connection .pdf
Describe the differences between the three major physical connection mediums: twisted-pair
cable, coaxial cable, and fiber-optic cable.
Solution
Below is the Difference Between Fiber Optic Cable, Twisted Pair and coaxial Cable :
Twisted Pair Cables
Twisted pair cable consists of a pair of insulated wires twisted together, which is adapted in the
field of telecommunication for a long time. With the cable twisting together, it helps to reduce
noise from outside sources and crosstalk on multi-pair cables. Twisted pair cable works well on
transferring balanced differential signals, the merits of which are extremely valuable in wide
bandwidth and high fidelity system. Basically, twisted pair cable can be divided into two types:
unshielded twisted-pair (UTP) and shielded twisted-pair (STP). The former serves as the most
commonly used one with merely two insulated wires twisted together. Any data communication
cables and normal telephone cables belong to this category. However, shielded twisted pair
distinguishes itself from UTP in that it consists of a foil jacket which helps to prevent crosstalk
and noise from outside source. It is typically used to eliminate inductive and capacitive coupling,
so it can be applied between equipment, racks and buildings. With the advancement of
technology, the twisted pair cables are now being phased out by more technically developed and
reliable media.
Coaxial Cables
Coaxial cable acts as a high-frequency transmission cable which contains a single solid-copper
core. A coaxial cable has over 80 times the transmission capability of the twisted-pair. It is
commonly used to deliver television signals and to connect computers in a network as well, so
people may get more familiar with this kind of cable. Coaxial cable has always been the
mainstay of high speed communication and has also been applied to network with 10 gigabit
links data centers, because it is proved to be cost efficient for short links within 10 m and for
residential network. Besides, it features anti-jamming capability, stable transmission of data and
money saving. Coaxial cable is widely employed in feedlines connecting radio transmitters and
receivers, computer network connection, digital audio and television signals distribution.
Moreover, coaxial cable can effectively protect signals from being interfered by external
electromagnetic influence.
Fiber Optic Cables
Computing and data communications are fast-moving technologies. There comes a new
generation of transmission media—fiber optic cable. It refers to the complete assembly of fibers,
which contain one or more optical fibers that are used to transmit data. Each of the optical fiber
elements is individually coated by plastic layers and contained in a protective tube. Fiber optic
cable transmits data as pulses of light go through tiny tubes of glass, the transmission capacity of
which is 26,000 times higher than that of twisted-pair cable. When comparing with coaxial
cables, fiber optic cables ar.
Create a student record management system using linked list and queu.pdf
Create a student record management system using linked list and queue using Java language and
database to save files and GUI Java swing to create background and also use HTML.
With the following properties
A . register students(assume each students has ID, first name ,last name and middle name)
B.register students with courses(course no ,course title crh)
C.able to maintain grade on which course they are registered
d.searches students by ID displays if found
E.searches by course name
F. sorts student name in alphabetical order
G.displays the details of all students
H.Deletes a student by id
I.Deletes a course by courseNo
J. Handles errors in informative ways .
Solution
public class StudentRegistration extends JFrame implements ActionListener{
JLabel idLabel, fnameLabel, midnameLabel, lastnameLabel, courseLabel;
JTextField idField, fnameField, midnameField, lastnameField, courseField;
JButton registerButton;
JPanel panel;
List list = new ArrayList();
StudentRegistration() {
setSize(800, 400);
setLayout(null);
idLabel = new JLabel(\"ID\");
fnameLabel = new JLabel(\"First Name\");
midnameLabel = new JLabel(\"Mid Name\");
lastnameLabel = new JLabel(\"Last Name\");
courseLabel = new JLabel(\"Course\");
// Defining ID field
idField = new JTextField();
idField.addKeyListener(new KeyAdapter() {
public void keyTyped(KeyEvent e) {
char c = e.getKeyChar();
}
});
// Defining Name field
fnameField = new JTextField();
fnameField.addKeyListener(new KeyAdapter() {
public void keyTyped(KeyEvent e) {
char c = e.getKeyChar();
}
});
registerButton
= new JButton(\"Register\");
registerButton.addActionListener(this);
add(idLabel);
add(fnameLabel);
add(midnameLabel);
add(lastnameLabel);
add(courseLabel);
add(idField);
add(fnameField);
add(midnameField);
add(lastnameField);
add(courseField);
add(registerButton);
list.add(new User(idField.getText(), fnameField.getText(),midnameField.getText(),
lastnameField.getText(),courseField.getText()));
saveValues();
JOptionPane.showMessageDialog(this,
\"Student Successfully Registered\");
}
}
public void saveValues() throws SQLException {
User str = list.get(list.size()-1);
Connection connection = null;
Class.forName(\"com.mysql.jdbc.Driver\");
String url = \"jdbc:mysql://localhost/testdb\";
String user = \"root\";
String password = \"\";
connection = DriverManager.getConnection(url,
user, password);
Statement stmt = connection.createStatement();
String sql = \"INSERT INTO students(str.fname,str.midname,str.lastname,str.course) \";
stmt.execute(sql);
}
public static void
main(String[] args) {
new StudentRegistration();
}
}.
Coca-Cola companyStrategic Goals and Objectivesi. Objectives are.pdf
Coca-Cola company
Strategic Goals and Objectives
i. Objectives are the specific, measurable steps that will help you achieve your mission. Develop
objectives that are SMART: specific, measurable, achievable (eventually), relevant to your
mission, and timed (with a date for completion.).
Solution
The strategic goals and objectives to the Coca-Cola Company will be framed as,.
C programming. Answer question only in C code Ninth Deletion with B.pdf
C programming. Answer question only in C code Ninth: Deletion with Binary Search Tree (20
points) In the ninth part, you will extend the binary search tree in the eighth part to support the
deletion of a node. The deletion of a node is slightly trickier compared to the search and insert in
the eighth The deletion is straightforward if the node to be deleted has only one child. You make
the parent of the node to be deleted point to that child. In this scenario, special attention must be
paid only when the node to be deleted is the root Deleting a node with two children requires
some more work. In this case, you must find the minimum element in the right subtree of the
node to be deleted. Then you insert that node in the place where the node to be deleted was. This
process needs to be repeated to delete the minimum node that was just moved In either case, if
the node to be deleted is the root, you must update the pointer to the root to point to the new root
node Input format: This program takes a file name as argument from the command line. The file
is either blank or contains successive lines of input. Each line contains a character, \'i or \'d\'
followed by a tab and an integer. For each line that starts with \'i\', your program should insert
that number in the binary search tree if it is not already there. If the line starts with a \'s, your
program should search for that value. If the line starts with a \'d\', your program should delete
that value from the tree output format: For each line in the input file, your program should print
the status/result of the operation. For insert and search, the output is the same as in the Eighth
Part: For an insert operation, the program should print either \"inserted\" with a single space
followed by a number the height of the inserted mode in the tree, or \"duplicate\" if the value is
already present in the tree. The height of the root node is 1. For a search, the program should
either print \"present\" followed by the height of the node, or absent\" based on the outcome of
the search. For a delete, the program should print \"success or \"fail\" based on the whether the
value was present or not. Again, as in the Eight Part, your program should print \"error\" (and
nothing else) if the file does not exist or for input lines with improper structure Example
Execution: Lets assume we have a file filel.txt with the following contents: i 5 i 3 i 4 i 1 i 6 i 2 s
1 d 3 s 2 Executing the program in the following fashion should produce the output shown
below:
Solution
// C program to demonstrate delete operation in binary search tree
#include
#include
struct node
{
int key;
struct node *left, *right;
};
// A utility function to create a new BST node
struct node *newNode(int item)
{
struct node *temp = (struct node *)malloc(sizeof(struct node));
temp->key = item;
temp->left = temp->right = NULL;
return temp;
}
// A utility function to do inorder traversal of BST
void inorder(struct node *root)
{
if (root != NULL)
.
Biology LabThe poisonous wastes of diptheria germs are called (A).pdf
Biology Lab:
The poisonous wastes of diptheria germs are called (A) antitoxins (B) antibodies (C) immunities
(D) toxins
Solution
Biology Lab ANS: (D) toxins
Explanation:
A toxin is a poisonous substance which produced by some bacteria or an organism
Diphtheria is mainly caused by the corynebacterium diphtheriae bacteria. It is a gram positive,
non-endospore forming, pleiomorphic bacteria.
Poisonous wastes of diptheria germs (C.diphtheriae) can produce diphtheria toxin. It causes sore
throat and fever. This toxins prevents protein synthesis and causes cell death..
Aside from the expansion of industrial capitalism, what factors affe.pdf
Aside from the expansion of industrial capitalism, what factors affected American development
during the late 19th centry? How important are those factors in comparison to capitalism’s
growth?
Solution
ANSWER:
During the late nineteenth Americans believed for the expansion of national borders in order to
keep the America running upright. Moreover, the Americans believed that the United States was
the most powerful of nations, and that they could take any land they pleased. The expansion of
American started after the Civil War. The war made substantial use of the telegraph and
railroads. Moreover there was a crucial expansion of railroads with a motive on combing the
Atlantic and Pacific coasts, with movement.
This growing population and an advanced transportation is one of the main causes of expansions
of America in late 19th century. Europeans with surplus wealth joined Americans in investing
the economic expansion of the nation. Also the farmers during this time required arable land for
livestock and crops which was unavailable due to overcrowding. Thus financial panics uprooted
them and sent them west for a new start. Furthermore, the American government also motivated
the citizens to move west, with the motive of acquisition of new territory from foreign powers.
The above discussed factors are different from the factors in capitalism’s growth. Capitalism is a
system in an economy where private entities own the factors of production namely
entrepreneurship, natural resources, capital goods and labor; and ensures that an economy will
produce the most desired products at an acceptable price. The owners of capital goods,
entrepreneurship and natural resources exercise control through companies..
Yates (2009) notes that unions have a purpose broader than serving t.pdf
Yates (2009) notes that unions have a purpose broader than serving their members. What
arguments does he make in that regard? What do you think of his arguments, and why?
Solution
Yates says that unions actually mean better pay, benefits, and slao working conditions for their
members and they indeed force employers to treat employees with dignity and respect; and at
their maximum best, they provide the workers to work in the society with utmost satisfaction on
the whole. Yates used simple language with suffiecient examples to tell that how unions popped
out to be helpful at certain troublesome instants on the whole. His arguments exactly carried on
to tell the importance of unions and he advises all the workers to join in the unions which would
be ultimately beneficial to them on the whole..
write a C program for blinking light using function make sure it.pdf
write a C program for blinking light using function
** make sure it will compile
Solution
GPIO is General purpose input output it is very useful for blinking a led.
GPIO is configured with input and output. itis micro controller.
#include
/* PORT B0 is the microcontroller */
int main()
{
unsigned int signal =0;
/* Configure GPIO with input and output */
DDRB = 0x01;
while(1)
{
for (signal =0;signal <50000;signal ++)
{
PORTB = 0x00;
}
for (signal =0;signal <50000;signal ++)
{
PORTB = 0x01;
}
}
return 0;
}.
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