itft-Decision making and branching in javaAtul Sehdev
Decision Making Statements,The if Statement, SIMPLE IF STATEMENT, The If…else Statement, Nesting of IF..Else Statements, THE else if ladder, The Switch Statement, rules apply to a switch statement
In this lecture, I present introduction in Java.
Outline of this lecture:
- Object & Classes concept
- Variables and DataTypes
- Constructor concept
- Overloading Constructor
- Difference between constructor and method
- Copier Constructor
- Access Modifier
itft-Decision making and branching in javaAtul Sehdev
Decision Making Statements,The if Statement, SIMPLE IF STATEMENT, The If…else Statement, Nesting of IF..Else Statements, THE else if ladder, The Switch Statement, rules apply to a switch statement
In this lecture, I present introduction in Java.
Outline of this lecture:
- Object & Classes concept
- Variables and DataTypes
- Constructor concept
- Overloading Constructor
- Difference between constructor and method
- Copier Constructor
- Access Modifier
"Belalang Kupu-Kupu, dari Hama jadi Maha" Inilah skenario bisnis sosial yang kami garap untuk memberdayakan komunitas marjinal penyandang disabilitas.
Melalui strategi 5 C, Connect | Collaborative | Communicate | Commerce | Culture, kegiatan ini akan bergerak menciptakan impact positif bagi perubahan sosial
Neste voto, Gilmar Mendes defende o fóro privilegiado, tanto para políticos como para ex-políticos. Contrariando diretamente o seu voto recente (mar/2016) contra Lula.
Есть ли у украинских интернет-магазинов спрос на комплексные логистические услуги? Однозначно, что подтверждается многочисленными участниками профильных мероприятий. Есть ли в Украине компании, предлагающие услуги фулфилмента? Есть, что подтверждается регулярными презентациями на тех же мероприятиях. Есть ли успешные и известные примеры использования услуги? Скорее нет, чем да … В чем причина этого явления на конференции «Бизнес интернет-магазинов 2014» разбирался Дмитрий Волох, ТОЧКА.
Abstraction in Java: Abstract class and InterfacesJamsher bhanbhro
In my presentation titled "Abstraction in Java," I have discussed the fundamental concept of abstraction in Java programming. The presentation delves into how abstraction is a key principle in object-oriented programming, explaining its role in hiding the complexity of code while exposing only the necessary details. It includes examples and explanations on implementing abstraction in Java, offering a clear understanding for both beginners and intermediate learners. This presentation serves as an educational guide for those interested in enhancing their Java programming skills and understanding the practical applications of abstraction in software development.
Towards Improving Interface Modularity in Legacy Java Software Through Automa...Raffi Khatchadourian
The skeletal implementation pattern is a software design pattern
consisting of defining an abstract class that provides a partial interface implementation. However, since Java allows only single class inheritance, if implementers decide to extend a skeletal implementation, they will not be allowed to extend any other class. Also, discovering the skeletal implementation may require a global analysis. Java 8 enhanced interfaces alleviate these problems by allowing interfaces to contain (default) method implementations, which implementers inherit. Java classes are then free to extend a different class, and a separate abstract class is no longer needed; developers considering implementing an interface need only examine the interface itself. We argue that both these benefits improve software modularity, and discuss our ongoing work in developing an automated refactoring tool that would assist developers in taking advantage of the enhanced interface feature for their legacy Java software.
In Java, interface is used to achieve abstraction in java. It is a blueprint of class. An interface is not a class, but it does help create classes. An interface is fully abstract; it has no fields, only method definitions. A class can implement an interface, and unless the class is abstract, it is forced to provide concrete implementations for them.
Automated Refactoring of Legacy Java Software to Default Methods Talk at GMURaffi Khatchadourian
Java 8 default methods, which allow interfaces to contain (instance) method implementations, are useful for the skeletal implementation software design pattern. However, it is not easy to transform existing software to exploit default methods. In this talk, I discuss an efficient, fully-automated, type constraint-based refactoring approach that assists developers in taking advantage of enhanced interfaces for their legacy Java software.
The skeletal implementation pattern is a software design pattern consisting of defining an abstract class that provides a partial interface implementation. However, since Java allows only single class inheritance, if implementers decide to extend a skeletal implementation, they will not be allowed to extend any other class. Also, discovering the skeletal implementation may require a global analysis.
Java 8 enhanced interfaces alleviate these problems by allowing interfaces to contain (default) method implementations, which implementers inherit. Java classes are then free to extend a different class, and a separate abstract class is no longer needed; developers considering implementing an interface need only examine the interface itself.
In this talk, I will argue that both these benefits improve software modularity, and I will discuss our ongoing work in developing an automated refactoring tool that would assist developers in taking advantage of the enhanced interface feature for their legacy Java software.
Raffi Khatchadourian is an Assistant Professor in the Department of Computer Systems Technology (CST) at New York City College of Technology (NYCCT) of the City University of New York (CUNY) and an Open Educational Resources (OER) Fellow for the Spring 2016 semester. His research is centered on techniques for automated software evolution, particularly those related to automated refactoring and source code recommendation systems. His goal is to ease the burden associated with correctly and efficiently evolving large and complex software by providing automated tools that can be easily used by developers.
Raffi received his MS and PhD degrees in Computer Science from Ohio State University and his BS degree in Computer Science from Monmouth University in New Jersey. Prior to joining City Tech, he was a Software Engineer at Apple, Inc. in Cupertino, California, where he worked on Digital Rights Management (DRM) for iTunes, iBooks, and the App store. He also developed distributed software that tested various features of iPhones, iPads, and iPods.
HEAP SORT ILLUSTRATED WITH HEAPIFY, BUILD HEAP FOR DYNAMIC ARRAYS.
Heap sort is a comparison-based sorting technique based on Binary Heap data structure. It is similar to the selection sort where we first find the minimum element and place the minimum element at the beginning. Repeat the same process for the remaining elements.
NUMERICAL SIMULATIONS OF HEAT AND MASS TRANSFER IN CONDENSING HEAT EXCHANGERS...ssuser7dcef0
Power plants release a large amount of water vapor into the
atmosphere through the stack. The flue gas can be a potential
source for obtaining much needed cooling water for a power
plant. If a power plant could recover and reuse a portion of this
moisture, it could reduce its total cooling water intake
requirement. One of the most practical way to recover water
from flue gas is to use a condensing heat exchanger. The power
plant could also recover latent heat due to condensation as well
as sensible heat due to lowering the flue gas exit temperature.
Additionally, harmful acids released from the stack can be
reduced in a condensing heat exchanger by acid condensation. reduced in a condensing heat exchanger by acid condensation.
Condensation of vapors in flue gas is a complicated
phenomenon since heat and mass transfer of water vapor and
various acids simultaneously occur in the presence of noncondensable
gases such as nitrogen and oxygen. Design of a
condenser depends on the knowledge and understanding of the
heat and mass transfer processes. A computer program for
numerical simulations of water (H2O) and sulfuric acid (H2SO4)
condensation in a flue gas condensing heat exchanger was
developed using MATLAB. Governing equations based on
mass and energy balances for the system were derived to
predict variables such as flue gas exit temperature, cooling
water outlet temperature, mole fraction and condensation rates
of water and sulfuric acid vapors. The equations were solved
using an iterative solution technique with calculations of heat
and mass transfer coefficients and physical properties.
NO1 Uk best vashikaran specialist in delhi vashikaran baba near me online vas...Amil Baba Dawood bangali
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Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
2. Interfaces
An interface declares (describes) methods but
does not supply bodies for them
interface interFaceName{
public void function1(Class1 obj1);
public void function2(Class2 obj2);
}
All the methods are implicitly public and
abstract
You can add these qualifiers if you like, but why
bother?
You cannot instantiate an interface
An interface is like a very abstract class—none of
its methods are defined
An interface may also contain constants (final
variables) which act like constants
2
3. Implementin
g an
interface
You extend a class, but you implement an
interface
A class can only extend (subclass) one other class,
but it can implement as many interfaces as you like
Example:
class otherClass
implements Interface1, Interface2 {
//declarations
}
3
4. What are
interfaces
for?
Reason 1: A class can only extend one other class, but it
can implement multiple interfaces
This lets the class fill multiple “roles”
This concept could be explained as partial multiple
inheritance
In writing Applets, it is common to have one class
implement several different listeners
Example:
class otherClass extends Applet
implements Interface1, Interface2 {
//Statements
}
Reason 2: You can write methods that work for more than
one kind of class
4
5. instanceof is a keyword that tells you whether
a variable
“is a” member of a class or interface
For example, if
class Dog extends Animal implements Pet {...}
Animal fido = new Dog();
then the following are all true:
fido instanceof Dog
fido instanceof Animal
fido instanceof Pet
instanceof is seldom used
When you find yourself wanting to use instanceof,
think about whether the method you are writing
should be moved to the individual subclasses
5
Instance of
6. When you implement an interface, you promise to define all
the functions it declares
There can be a lot of methods
interface KeyListener {
public void keyPressed(KeyEvent e);
public void keyReleased(KeyEvent e);
public void keyTyped(KeyEvent e);
}
What if you only care about a couple of these methods?
6
Interfaces
again
7. Solution: use an adapter class
An adapter class implements an interface and
provides empty method bodies
class KeyAdapter implements KeyListener {
public void keyPressed(KeyEvent e) { };
public void keyReleased(KeyEvent e) { };
public void keyTyped(KeyEvent e) { };
}
You can override only the methods you care
about
This isn’t elegant, but it does work
Java provides a number of adapter classes
7
Adapter
class
8. Vocabulary
abstract method—a method which is declared but not
defined (it has no method body)
abstract class—a class which either (1) contains abstract
methods, or (2) has been declared abstract
instantiate—to create an instance (object) of a class
interface—similar to a class, but contains only abstract
methods (and possibly constants)
adapter class—a class that implements an interface but
has only empty method bodies
8