Java Programming - Flow Control - Discussion
Discussion Forum : Flow Control - General Questions (Q.No. 4)
4.
public class While
{
public void loop()
{
int x= 0;
while ( 1 ) /* Line 6 */
{
System.out.print("x plus one is " + (x + 1)); /* Line 8 */
}
}
}
Answer: Option
Explanation:
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.
Discussion:
14 comments Page 2 of 2.
Sanket said:
1 decade ago
no, 'while' will take boolean values!
Syntax:
while(condition)
{
//block of statements
}
Syntax:
while(condition)
{
//block of statements
}
Arjun said:
1 decade ago
While will take boolean value like if?
M.SIDDHARTHA said:
1 decade ago
while is a keyword in JAVA and we can't assign a keyword to a class and give a satisfactory explanation for it.
Sundar said:
1 decade ago
I got the following error while compiling the above code.
--------------------------------------------------------------
While.java:6: incompatible types
found : int
required: boolean
while ( 1 ) /* Line 6 */
^
1 error.
--------------------------------------------------------------
Therefore, the given answer is correct.
--------------------------------------------------------------
While.java:6: incompatible types
found : int
required: boolean
while ( 1 ) /* Line 6 */
^
1 error.
--------------------------------------------------------------
Therefore, the given answer is correct.
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