Flow Control

Q1:
public void test(int x) 
{ 
    int odd = 1; 
    if(odd) /* Line 4 */
    {
        System.out.println('odd'); 
    } 
    else 
    {
        System.out.println('even'); 
    } 
}
Which statement is true?

A Compilation fails.

B "odd" will always be output.

C "even" will always be output.

D "odd" will be output for odd values of x, and "even" for even values.

Q2:
public void test(int x) 
{ 
    int odd = 1; 
    if(odd) /* Line 4 */
    {
        System.out.println('odd'); 
    } 
    else 
    {
        System.out.println('even'); 
    } 
}
Which statement is true?

A Compilation fails.

B "odd" will always be output.

C "even" will always be output.

D "odd" will be output for odd values of x, and "even" for even values.

Q3:
switch(x) 
{ 
    default:  
        System.out.println('Hello'); 
}
Which two are acceptable types for x?
  1. byte
  2. long
  3. char
  4. float
  5. Short
  6. Long

A 1 and 3

B 2 and 4

C 3 and 5

D 4 and 6

Q4:
public void foo( boolean a, boolean b)
{ 
    if( a ) 
    {
        System.out.println('A'); /* Line 5 */
    } 
    else if(a && b) /* Line 7 */
    { 
        System.out.println( 'A && B'); 
    } 
    else /* Line 11 */
    { 
        if ( !b ) 
        {
            System.out.println( 'notB') ;
        } 
        else 
        {
            System.out.println( 'ELSE' ) ; 
        } 
    } 
}

A If a is true and b is true then the output is 'A && B'

B
If a is true and b is false then the output is 'notB'

C If a is false and b is true then the output is 'ELSE'

D If a is false and b is false then the output is 'ELSE'

Q5:
public class While 
{
    public void loop() 
    {
        int x= 0;
        while ( 1 ) /* Line 6 */
        {
            System.out.print('x plus one is ' + (x + 1)); /* Line 8 */
        }
    }
}
Which statement is true?

A There is a syntax error on line 1.

B There are syntax errors on lines 1 and 6.

C There are syntax errors on lines 1, 6, and 8.

D There is a syntax error on line 6.


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