do while loop problem

[Jack Lau]

Could anyone tell me why it is not an infinity loop ?

public class TestOperator2 {
public static void main(String[] args) {
boolean flag; int i=0;
do {
flag = false;
System.out.println( i++ );
flag = i < 10;
continue; // this continue will go where ?
} while ((flag)? true:false);
}
}

Thanks in advance!
Jack

[Ernest Friedman-Hill]

The continue goes to the condition -- i.e., the "(flag)? true:false" is evaluated next. You're assuming that continue always goes to the top of the loop, which isn't so; it goes to the beginning of the next iteration, which starts with evaluating the condition.

[Jack Lau]

oh, that means
do {
continue; // will go to (flag)?
} while ((flag)?true:false);
while ((a+b > 1)) {
continue; // will go to (a+b > 1)
}
for (int i=0; i<10; i++) {
continue; // will go to (i<10)
}
Am I right ?
Thanks!
Jack

[Harwinder Bhatia]

You are right on 'do' and 'while' loops but for 'for':
'continue' will first go to 'i++' and then 'i<10'
-H
[ October 27, 2003: Message edited by: Harwinder Bhatia ]