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Flow Control - Programming

Q1:

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.

ANS:A - There is a syntax error on line 1.

Using the integer 1 in the while statement, or any other looping or conditional construct for that matter, will result in a compiler error. This is old C Program syntax, not valid Java. A, B and C are incorrect because line 1 is valid (Java is case sensitive so While is a valid class name). Line 8 is also valid because an equation may be placed in a String operation as shown.