返回执行过程中的for循环的顶部？

Question

I am trying to go back to the top a for-loop if a certain condition in an inner if-statement is fulfilled. Is there any code that can do this?

Answer 1

continue;

跳过循环的其余部分，然后返回顶部。

Answer 2

Do you mean you want to use continue ?

String myTraingle = "";
for (int i=1;i<=9;i++) {
    myTraingle = "";
    for (int j=1;j<=9;j++) {
        myTraingle = myTraingle + " " + j;
        if (i==j) {
            System.out.println(myTraingle);
            continue;
        }
    }
}

Output

 1
 1 2
 1 2 3
 1 2 3 4
 1 2 3 4 5
 1 2 3 4 5 6
 1 2 3 4 5 6 7
 1 2 3 4 5 6 7 8
 1 2 3 4 5 6 7 8 9

Demo

Answer 3

You can use

continue;

And if you've got some nested loops use

continue <label>;

Examples are here: http://docs.oracle.com/javase/tutorial/java/nutsandbolts/branch.html

Answer 4

continue;

Skips the current iteration of a for , while , or do-while loop.

break;

Terminates the innermost switch , for , while , or do-while statement.

Example:

for(int i=0; i<100; i++) {
  if(i==0) continue; // skip
  if(i==10) break;   // terminate
  System.out.println(i);
} 
// prints: 1 2 3 4 5 6 7 8 9 (one per line)

Reference: http://docs.oracle.com/javase/tutorial/java/nutsandbolts/branch.html

Answer 5

you can use continue statement. In every programming language including java, one can find certain condition in which loop has to iterate next iteration by discontinuing present iteration. continue is used only for that purpose. Just write continue; in inner if statement.

Answer 6

When the if-statement is fulfilled, before using 'continue', overwrite count to '0'.

for(int i=0; i<10; i++) 
{
  if(/* Some Condition */) 
  {
    i=0; // to go to top again.
    continue; 
  }
}