public class while void loop int x 0 while 1 line..., Control Structure, Java

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- Model Test
- Quiz 1: Java Programming
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Question: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.

+ AnswerD

+ ExplanationUsing 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.

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Question: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.

D

Question: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?