JAVA ITCS 1213 Self-check Quiz Interfaces 1) What is an interface comp.docx

•Download as DOCX, PDF•

0 likes•5 views

JAVA ITCS 1213 Self-check Quiz Interfaces 1) What is an interface comprised of in Java 7? 2) Can an interface have fields? 3) What is the access of all the methods in a Java interface? 4) Can an interface be instantiated? 5) Give two reasons for interfaces in the Java language. 6) How many interfaces can another class implement? 7) What does it mean to implement a Java interface? 8) If a class extends an Employee class and implements a Comparable interface, what are the is-a relationships established? 9) How many classes can a given class extend? 10) Name five Java pre-written interfaces. Solution Multiple Questions : Answering 6 Questions. 1) What is an interface comprised of in Java 7? An interface is a reference type in Java, it is similar to class, it is a collection of abstract methods. A class implements an interface, thereby inheriting the abstract methods of the interface. Along with abstract methods an interface may also contain constants, default methods, static methods, and nested types. Method bodies exist only for default methods and static methods. 4) Can an interface be instantiated? You cannot instantiate an interface. 6) How many interfaces can another class implement? A class can implement more than one interface at a time. 7) What does it mean to implement a Java interface? When a class implements an interface, you can think of the class as signing a contract, agreeing to perform the specific behaviors of the interface. If a class does not perform all the behaviors of the interface, the class must declare itself as abstract. A class uses the implements keyword to implement an interface. The implements keyword appears in the class declaration following the extends portion of the declaration. 9) How many classes can a given class extend? A Java class can only extend one parent class. Multiple inheritance is not allowed. 10) Name five Java pre-written interfaces. java.lang.Runnable java.util.concurrent.Callable java.io.FileFilter java.util.Comparator java.beans.PropertyChangeListener .

Education

6) How many interfaces can another class implement?
A class can implement more than one interface at a time.
7) What does it mean to implement a Java interface?
When a class implements an interface, you can think of the class as signing a contract, agreeing
to perform the specific behaviors of the interface. If a class does not perform all the behaviors of
the interface, the class must declare itself as abstract.
A class uses the implements keyword to implement an interface. The implements keyword
appears in the class declaration following the extends portion of the declaration.
9) How many classes can a given class extend?
A Java class can only extend one parent class. Multiple inheritance is not allowed.
10) Name five Java pre-written interfaces.
java.lang.Runnable
java.util.concurrent.Callable
java.io.FileFilter
java.util.Comparator
java.beans.PropertyChangeListener

Similar to JAVA ITCS 1213 Self-check Quiz Interfaces 1) What is an interface comp.docx

Java Interview Questions

Kuntal Bhowmick

Unit 4

LOVELY PROFESSIONAL UNIVERSITY

The smartpath information systems java

The Smartpath Information Systems,Bhilai,Durg,Chhattisgarh.

Object Oriented Programming - Polymorphism and Interfaces

Habtamu Wolde

Basic java important interview questions and answers to secure a job

Garuda Trainings

Suga java training_with_footer

Sugavanam Natarajan

Probable questions for semester exam

Kuntal Bhowmick

Core_Java_Interview.pdf

ansariparveen06

4Abstraction-220203-164234Question.pdf

adarsh76530

Pocket java

Kumaran K

Java interview questions

G C Reddy Technologies

JAVA VIVA QUESTIONS_CODERS LODGE.pdf

nofakeNews

Top 20 basic java interview questions for SDET

DevLabs Alliance

Dev labs alliance top 20 basic java interview question for sdet

devlabsalliance

Similar to JAVA ITCS 1213 Self-check Quiz Interfaces 1) What is an interface comp.docx (20)

Java Interview Questions

Unit 4

The smartpath information systems java

Object Oriented Programming - Polymorphism and Interfaces

Basic java important interview questions and answers to secure a job

Suga java training_with_footer

Probable questions for semester exam

Core_Java_Interview.pdf

4Abstraction-220203-164234Question.pdf

Pocket java

Java interview questions

JAVA VIVA QUESTIONS_CODERS LODGE.pdf

Top 20 basic java interview questions for SDET

Dev labs alliance top 20 basic java interview question for sdet

More from olsenlinnea427

Assume that X is a discrete random variable that can take on the follo.docx

olsenlinnea427

Assume that in an economy, people hold $1000 of currency and $4000 of demand deposits in a bank. The reserve-deposit ratio is 0.25 1. What are the money supply, the monetary base and the money multiplier? 2. Suppose that the Fed increase the monetary base by 100$ . What will be the change in the money supply? 3. If the banks become risk-averse and increase the reserve deposit ratio, would the money supply increase as much as in part 2? Explain your intuition? .

Assume that in an economy- people hold $1000 of currency and $4000 of.docx

olsenlinnea427

Assume a Poisson distribution with -4-5- Find the following probabilit.docx

olsenlinnea427

Assume a member is selected at random trom the population represented.docx

olsenlinnea427

Assume a list has the following element: write a function to interchange the first two elements in the right partition of a list. Please help to fix the code! #include <iostream> #include <list> template<typename Elem> void interchangeFirstTwo(std::list<Elem>& list) { if (list.size() < 2) return; typename std::list<Elem>::iterator it = list.begin(); Elem value1 = *it; ++it; Elem value2 = *it; list.erase(list.begin(), std::next(list.begin(), 2)); list.insert(list.begin(), value2); list.insert(list.begin(), value1); } int main() { std::list<int> list = { 2, 23, 15, 5, 9 }; std::cout << "Original list: "; for (int value : list) { std::cout << value << " "; } std::cout << std::endl; interchangeFirstTwo(list); std::cout << "After interchanging first two elements: "; for (int value : list) { std::cout << value << " "; } std::cout << std::endl; return 0; } .

Assume a list has the following element- write a function to interch.docx

olsenlinnea427

Assume a company had no jobs in progress at the beginning of July and no beginning inventories. It started and completed only two jobs during July Job Y and Job Z. The company uses a plantwide predetermined overhead rate based on direct labor-hours. The following additional information from the month of July is available for the company as a whole and for Jobs Y and Z : What is the plantwide predetermined overhead rate? Multole Choice 5850 55.50 .

Assume a company had no jobs in progress at the beginning of July and.docx

olsenlinnea427

Assignment: Peg Game Create a web page that allows the user to play the Triangle Peg Game. Here are images of the starting position in several representations of the game: The board consists of 15 holes, and 14 removable pegs. Peg colors are merely decorative. In the initial position, all 14 pegs are in the board, leaving one empty hole (empty space). Rules: 1. You must jump a peg over another peg, but only if there is an open space. If there is more than one legal move, you may choose whichever. 2. Each peg you jump over must be removed, leaving a hole. 3. You win if only one peg is left at the end of the game. Here is an example of the two possible first moves assuming the initial empty position is at the top of the board (at position one). The examples show only the first three rows of the board where the numbers indicate pegs and the holes are "X"'s. Thus there should be two legal moves: a peg from the third row into the top empty space, removing one of the pegs in the second row. becomes or Requirements for your Web Page: The user will play by clicking on a peg and then clicking on the empty hole to which the peg should move. This move will be legal if and only if the moving peg crosses over exactly one occupied hole and no unoccupied holes. There should be at least three different peg colors. If the user attempts an illegal move, display a message indicating this. When no legal moves remain, display a message. If there is only one peg remaining, "Victory!". If two pegs remain, "So close! Try again!". If three pegs remain, "You are improving! Try again!". If four or more remain, "Better luck next time.". There should be a button that resets the board to the default starting position (see above), and another button that starts with the position of the initial empty hole determined randomly. For simplicity, all files, including images, should reside in the same directory/folder. Use only relative (not absolute) names for the files in your HTML. Please provide HTML and JS code for the above question. Extra Credit: Move the pegs via a drag & drop mechanism. Check out the dragNdrop.html and its .js file from the source code we reviewed in class. Submitting Your Page: Submit your several files as a zip file to the dropbox. Make sure you include in your zip file all the .html files, as well as any image files (.gif and .jpg, for example) that your page references and any external style sheets or .js files. The main .html file (the one I will access with my browser) should be called pegs.html . Don't forget this! HTML CODE: <!DOCTYPE html>  <html lang = "en"> <head> <title> Drag and drop </title> <meta charset = "utf-8" /> <script type = "text/javascript" src = "dragNdrop.js" > </script> </head> <body style = "font-size: 1.7em;"> <p> Roses are red <br /> Violets are blue.

Assignment- Peg Game Create a web page that allows the user to play th.docx

olsenlinnea427

Assignment 2 Application Case 6.5 Efficient Image Recognition and Categorization with kNN Image recogniaion is an emerying dats mining appli-. As a technological discipline, computer vision cation field involved in processing, analyzing, and secks to develop computer systems that are capacatcgorizing visual objects such as pictures. In the ble of "secing" and reacting to their environment. process of recognition (or catcgorization), images Examples of applications of computer vision inctude are fint transformed into a multidimensional fea- systems for peocess automation (industrial robots), ture spoce and then, using muchine-leuming navigation (autonomous vehicles), monhoring/ sechniques, ane categorised into a finite number of detecting (visual surveillance, searching and sorting classes Application areas of imuge recogribion and visuals (indexing databuses of images and image categorization range from agricuture to horncland sequences), engaging (oomprier-human interacsecurity, personalized marketing to environmental tion), and inspection (manufacturing processes). protection. Image recognation is an inteyral part of While the fichd of visual rocognikion and casegory to be done to neach humas level perfomance. Current Ancether groop of reseanhers (Boiman et al, appecuadses ase capable of dealing with only a limined 2008) argued that two peactice commonly used mumber of categories (100 or so categories) and ane in image dessification methods (namely SVM and computationally expensive. Mary machine leaming ANN:type modeh daven appeoaches and kN type tectaigues (inctuding ANN, SVM, and LNO) ate used non parametric approuches) have led to lest thanto develop conpuer sparms for visul nexprition desired perfonnance outcomes. They also claim that and categorization, Though commendible foults have a hybrid method can improve the performance of been oteined, generally speaking none of these tools image reoognition and catcgatization. They propose in their curnent fom is capable of developing spsems a trivial Naive Bayes iEN-bosed cassilier, which that can oompete with humans. employs hN distances in the space of the local In a research project, sevenal reseanchers from imuge descriptoes (and not in the spoce of imagee). the Computer Science Division of the Electrical They claim that, although the modified kVN method Engineering and Computer Science Depurtment at the is extremely simple, efficient, and requires no karnUniversily of Callfornia, Berkeley, used an innovative ing/trining phuse, its performance ranks among the ensemble approach to image cateporization (Zhang top leading learning baved parametne inuge clasd et al, 2000. They combdered visual category ree- fless. Empirkal comparbons of their method were ogniition in the frainework of meavuring similari- shown on sevenal duallenging image categonization ties, of pereptewl distances, to develop examples chtobuses (Caltech-101, Catect-256, and Craz-01). of categories. Their recognition and cate.

Assignment 2 Application Case 6-5 Efficient Image Recognition and Cate.docx

olsenlinnea427

As part of measures for containing the Covid-19 pandemic, vaccination has been largely recommended and governments all the world over have rolled out measures to get citizens vaccinated. However, vaccination rates have been low in Ghana since its commencement. Discuss, showing practical examples, the possible reasons for vaccine hesitancy among the population groups, with special focus on university students. .

As part of measures for containing the Covid-19 pandemic- vaccination.docx

olsenlinnea427

As hematopoietic stem cells (HSC) mature and become differentiated they ___. Group of answer choices retain their ability to have unlimited rounds of DNA replication and cell division. continue to directly interact with bone marrow stromal cells (niche) and remain dependent on the same growth factors. stop cell division and take on mature cell specific characteristics. contribute to multiple hematopoietic cell lineages. immediately undergo apoptosis. .

As hematopoietic stem cells (HSC) mature and become differentiated the.docx

olsenlinnea427

As human populations & ecological footprints approach earth's carrying.docx

olsenlinnea427

Aries' description of an attitude toward death he called "tame death" differs from what he called "death of the self" by which of the following characteristics? Tame death is one where the focus of attention is almost entirely on what the death means for the dying person. In tame death, death is typically faced more calmly than it is in death of the self. In death of the self, death is seen as a sort of sleep and thus is unthreatening. In death of the self, the concerns and needs of the community take precedence over those of the dying person. An "ars moriendi" developed historically around an attitude of tame death. .

Aries' description of an attitude toward death he called -tame death-.docx

olsenlinnea427

Apple Inc- received $350-000 as dividends last year from its investmen.docx

olsenlinnea427

Anthony has been living in Western WA for 3 years. After moving from California and seeing his health decline, including weight gain, fatigue, joint pain, arthritis, and weakness, he decided to go to the doctor to get checked out. The doctor discovered Anthony has a Vitamin D deficiency (which you should have figured out in module #1). Anthony also has deterioration in his joint cavities, specifically on the distal end of his femur and humerus. After an X-ray they also found stress fractures on his tibia If possible, use some of the words listed below: Osteoblasts Osteoclasts Osteocytes Osteogenic cells Monocytes Hydroxylapatite Bone matrix Collagen Fibers Dense Regular Connective Tissue Periosteum Diaphysis Metaphysis Epiphysis Spongy Bone Compact Bone Osteons Canaliculi Ligament ACL LCL MCL PCL Patellar Groove Medial and Lateral Condyles of the Femur Tibial Tuberosity Lateral and Medial Meniscus Fibula Tibia Coracoacromial ligament Acromioclavicular ligament Coracoclavicular ligament Bursa Sac Glenohumeral ligaments (Articular Capsule) Acromioclavicular joint (AC Joint) Glenohumeral Joint Biceps Brachii Tendon Clavicle Humerus Scapula .

Anthony has been living in Western WA for 3 years- After moving from C.docx

olsenlinnea427

answer the questions in Blockchain list 5 point for all of the following and explain them I. What the technology does, how it works, and who uses it. II. The research and development history of the technology and its current stage of development. III. How the technology can converge with existing technologies or replace them. IV. The benefits, features, advantages, and disadvantages of the technology. V. Your anticipated unseen social and ethical implications associated with the technology. .

answer the questions in Blockchain list 5 point for all of the followi.docx

olsenlinnea427

Answer the following questions: Question 1: You have implemented a secure web gateway that blocks access to a social networking site. How would you categorize this type of security control? Question 2: A firewall appliance intercepts a packet that violates policy. It automatically updates its Access Control List to block all further packets from the source IP. What TWO functions is the security control performing? Question 3: Your CEO wants to know if the company's threat intelligence platform makes effective use of OSINT. What is OSINT? Question 4: One of the most prevalent threats to computers today is malicious code. As a security professional, you will likely have experience in dealing with unwanted software infecting your systems. By classifying the various types of malware and identifying the signs of infection, you will be better prepared to remediate compromised systems or prevent malware from executing in the first place. Briefly describe all the malware classification types you learned from Lecture 2. .

Answer the following questions- Question 1- You have implemented a sec.docx

olsenlinnea427

Answer the following based on a Blockchain and Biometrics I. What the technology does, how it works, and who uses it. II. The research and development history of the technology and its current stage of development. III. How the technology can converge with existing technologies or replace them. IV. The benefits, features, advantages, and disadvantages of the technology. V. Your anticipated unseen social and ethical implications associated with the technology. .

Answer the following based on a Blockchain and Biometrics I- What t.docx

olsenlinnea427

Anglin Company- a manufacturing firred has supplicd the following info.docx

olsenlinnea427

Angela Lopez owns and manages a consulting firm called Metrixi which began operationis on December 1. On December 31, Metrix shows the following selncted aceounts and ariounts for the month of December. Required: 1. Prepare a December income statement for the business. 2. Prepare a December statement of owner's equity. The A. Lopez, Capital account balance at December 1 was $0 , and the owner invested $18 , 400 cash in the company on December 2. 3. Prepare a December 31 balance sheet. Hint: Use the A. Lopez, Capital account balance calculated in part 2. Complete this question by entering your answers in the tabs below. Prepare a December income statement for the business. .

Angela Lopez owns and manages a consulting firm called Metrixi which b.docx

olsenlinnea427

Andrew finds that on his way to work his wait time for the bus is roughly uniformly distributed between 5 minutes and 8 minutes. One day he times his wait and writes down the number of minutes ignoring the seconds. Round solutions to three decimal places, if necessary. What is the probabitity that Andrew waits for 5 minutes? P ( X = 5 ) = What is the probability that Andrew waits between 5 and 7 minutes? P ( 5 X < 7 ) = .

Andrew finds that on his way to work his wait time for the bus is roug.docx

olsenlinnea427

More from olsenlinnea427 (20)