java quiz 2

class Test {

public static void main(String[] args) {

for(int i = 0; 1; i++) {

System.out.println("Hello");

break;

}

}

}

• Compiler Error

• hello

• garbage value

• 0 1

lass Test {

public static void main(String[] args) {

for(int i = 0; true; i++) {

System.out.println("Hello");

break;

}

}

}

• compilation error

• Hello

• all the above

• none of the above

class Test {

private static int x;

public static void main(String args[]) {

System.out.println(fun());

}

static int fun() {

return ++x;

}

}

• 0

• 2

• 1

• 3

public class Test

{

public static void main(String[] args)

{

int value = 3, sum = 6 + -- value;

int data = --value + ++value / sum++ * value++ + ++sum % value--;

System.out.println(data);

}

}

• 1

• 2

• 0

• 3

public class Test

{

public static void main(String[] args)

{

int temp = 9;

int data = 8;

System.out.println(temp & data);

}

}

• 9

• 8

• 1000

• 1001

import java.util.*;

public class Test {

public static void main(String[] args)

{

int[] x = new int[3];

System.out.println("x[0] is " + x[0]);

}

}

• The program has a compile error because the size of the array wasn’t specified when declaring the array.

• The program has a run time error because the array elements are not initialized.

• The program runs fine and displays x[0] is 0.

• The program has a run time error because the array element x[0] is not defined.

import java.util.*;

public class Test {

public static void main(String[] args)

{

int[] x = { 120, 200, 016 };

for (int i = 0; i < x.length; i++)

System.out.print(x[i] + " ");

}

}

• 120 200 16

• 120 200 14

• 120 200 016

• 016 is a compile error. It should be written as 16.

import java.util.*;

public class Test {

public static void main(String args[])

{

String s1 = "java";

String s2 = "java";

System.out.println(s1.equals(s2));

System.out.println(s1 == s2);

}

}

• false true

• false false

• true false

• true true

import java.util.*;

public class Test {

public static void main(String args[])

{

String S1 = "S1 =" + "123" + "456";

String S2 = "S2 =" + (123 + 456);

System.out.println(S1);

System.out.println(S2);

}

}

• S1=123456, S2=579

• S1=123456, S2=123456

• S1=579, S2=579

• None of This

import java.util.*;

public class Test {

public static void main(String[] args)

{

int[] x = { 1, 2, 3, 4 };

int[] y = x;

x = new int[2];

for (int i = 0; i < x.length; i++)

System.out.print(y[i] + " ");

}

}

• 1 2 3 4

• 0 0 0 0

• 1 2

• 0 0