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10/02/2021

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04. Consider the following two classes (in the same package but defined in different source files):public class Square {...
02/01/2021

04. Consider the following two classes (in the same package but defined in different source files):

public class Square {
double side = 0;
double area;

public Square(double length){
this.side = length;
}
public double getSide() {
return side;
}
public void setSide(double side) {
this.side = side;
}
double getArea() {
return area;
}
}
public class TestClass {
public static void main(String[] args) throws Exception {
Square sq = new Square(10.0);
sq.area = sq.getSide()*sq.getSide();
System.out.println(sq.getArea());
}
}

You are assigned the task of refactoring the Square class to make it better in terms of encapsulation. What changes will you make to this class?

Select 2 options

A. Make setSide() method private.

B. Make getArea() method private.

C. Make side and area fields private.

D. Make the side field private and remove the area field.

E. Change getArea method to:
public double getArea(){ return side*side; }

F. Add a setArea() method.

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03. What will the following program print?class LoopTest{public static void main(String args[]) {int counter = 0;outer:f...
01/01/2021

03. What will the following program print?

class LoopTest
{
public static void main(String args[])
{
int counter = 0;
outer:
for (int i = 0; i < 3; i++) {
middle:
for (int j = 0; j < 3; j++) {
inner:
for (int k = 0; k < 3; k++) {
if (k - j > 0) {
break middle;
}
counter++;
}
}
}
System.out.println(counter);
}
}

Select 1 option

A. 2

B. 3

C. 6

D. 7

E. 9

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02. What will be the result of compiling and running the following program ?class NewException extends Exception {}class...
31/12/2020

02. What will be the result of compiling and running the following program ?

class NewException extends Exception {}

class AnotherException extends Exception {}

public class ExceptionTest{

public static void main(String[] args) throws Exception{
try{
m2();
}
finally{
m3();
}
catch (NewException e) { }
}
public static void m2() throws NewException { throw new NewException();

public static void m3() throws AnotherException{ throw new AnotherException();
}

Select 1 option

A. It will compile but will throw AnotherException when run.

B. It will compile but will throw NewException when run.

C. It will compile and run without throwing any exceptions.

D. It will not compile.

E. None of the above.

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01. Given:class Triangle{ public int base; public int height; private static double ANGLE; public static double ge...
30/12/2020

01. Given:

class Triangle{
public int base;
public int height;
private static double ANGLE;

public static double getAngle();

public static void Main(String[] args)
{
System.out.println(getAngle());
}
}

Identify the correct statements:

Select 1 option

A. It will not compile because it does not implement setAngle method.

B. It will not compile because ANGLE cannot be private.

C. It will not compile because getAngle() has no body.

D. It will not compile because ANGLE field is not initialized.

E. It will not compile because of the name of the method Main instead of main.

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.

If you want to learn deep learning this book is best suitable for you, from the faculty of MIT.
27/12/2020

If you want to learn deep learning this book is best suitable for you, from the faculty of MIT.

11/12/2020

Programming is crucial when it comes to learning how to innovate, create very eco-friendly solutions for global problems and such. In essence, it helps in speeding up the input and output processes in a machine. Additionally, it helps you develop the ability to automate, collect, manage, analyze the data and information correctly.

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Creating a dynamic web page in Eclipse.In dynamic web pages, the Content of pages is different for different visitors. I...
09/12/2020

Creating a dynamic web page in Eclipse.

In dynamic web pages, the Content of pages is different for different visitors. It takes more time to load than the static web page. Dynamic web pages are used where the information is changed frequently, for example, stock prices, weather information, etc.

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.

Advance Java online training gives strong knowledge in the resolve of memory leakage problem, session tracking informati...
04/12/2020

Advance Java online training gives strong knowledge in the resolve of memory leakage problem, session tracking information, etc. Enroll today and attend Advanced Java Online Training @ https://www.facebook.com/Codingexperts8 .

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