Java Quiz (Basics)

Find the output of the following code.

int Integer = 24;

char String = ‘I’;

System.out.print(Integer);

System.out.print(String);

• Compile error

• Throws Exception

• 1

• 241

Find the output of the following program.

public class Solution

{

public static void main(String[] args)

{ short x = 10; x = x * 5; System.out.print(x); } }

• 50

• 10

• compile error

• Exception

Find the output of the following program.

public class Solution

{

public static void main(String[] args)

{ byte x = 127; x++; x++; System.out.print(x); } }

• -127

• 127

• 129

• 2

Find the output of the following program.

public class Solution

{ public static void main(String[] args)

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

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

{ System.out.print(x[i] + “ “);

} } }

• 120 200 016

• 120 200 14

• 120 200 16

• None

When an array is passed to a method, what does the method receive?

• The reference of the array

• The copy of the array

• Length of the array

• Copy of first element

Find the value of A[1] after execution of the following program.

int[] A = {0,2,4,1,3}; for(int i = 0; i < A.length; i++){ A[i] = A[(A[i] + 3) % A.length]; }

• 0

• 1

• 2

• 3

Arrays in java are-

• Object refrences

• Objects

• Primitive data type

• None

Find the output of the following code.

int ++a = 100;

System.out.println(++a);

• 101

• Compile error as ++a is not a valid identifier

• 100

• None

Find the output of the following code.

if(1 + 1 + 1 + 1 + 1 == 5)

{

System.out.print(“TRUE”);

}

else

{ System.out.print(“FALSE”); }

• TRUE

• FALSE

• Compile error

• None

Find the output of the following code.

Public class Solution

{

Public static void main(String… argos)

{ Int x = 5; x * = (3 + 7); System.out.println(x);

}}

• 50

• 22

• 10

• None