Java Tutorial - Java Continue

• « Previous
• Next »

continue statement forces an early iteration of a loop. In while and do-while loops, a continue statement causes control to be transferred to the conditional expression that controls the loop. In a for loop, control goes first to the iteration portion of the for statement and then to the conditional expression.

Java continue statement

Syntax for Java continue statement

or

The following code shows how to use a continue statement.

 
public class Main {
  public static void main(String[] argv) {
    for (int i = 0; i < 10; i++) {
      System.out.print(i + " ");
      if (i % 2 == 0)
        continue;
      System.out.println("");
    }/*w w  w.  j a v a2 s  .c om*/
  }
}

The code above generates the following result.

Example

continue may specify a label to describe which enclosing loop to continue.

 
public class Main {
  public static void main(String args[]) {
    outer: for (int i = 0; i < 10; i++) {
      for (int j = 0; j < 10; j++) {
        if (j > i) {
          System.out.println();/* w  w  w  . j a  va  2s  .  co m*/
          continue outer;
        }
        System.out.print(" " + (i * j));
      }
    }
    System.out.println();
  }
}

Here is the output of this program:

Example 2

The following code shows how to use labeled while loop.

//w  w  w  .  j  a va  2  s.  com
public class Main {
  public static void main(String[] args) {
    int i = 0;
    outer: while (true) {
      System.out.println("Outer while loop");
      while (true) {
        i++;
        System.out.println("i = " + i);
        if (i == 1) {
          System.out.println("continue");
          continue;
        }
        if (i == 3) {
          System.out.println("continue outer");
          continue outer;
        }
        if (i == 5) {
          System.out.println("break");
          break;
        }
        if (i == 7) {
          System.out.println("break outer");
          break outer;
        }
      }
    }
  }
}

The code above generates the following result.

Example 3

The following code shows how to calculate Primes with continue statement and label.

public class Main {
  public static void main(String[] args) {
    int nValues = 50;
//from www.j a v  a 2 s .  c  o  m
    OuterLoop: for (int i = 2; i <= nValues; i++) {
      for (int j = 2; j < i; j++) {
        if (i % j == 0) {
          continue OuterLoop;
        }
      }
      System.out.println(i);
    }
  }
}

The code above generates the following result.

Example 4

The following code shows how to use Labeled continue statement to calculate factorial numbers.

/* www.j ava2s. c om*/
public class Main {
  public static void main(String[] args) {
    int limit = 20;
    int factorial = 1;

    OuterLoop: for (int i = 1; i <= limit; i++) {
      factorial = 1;
      for (int j = 2; j <= i; j++) {
        if (i > 10 && i % 2 == 1) {
          continue OuterLoop;
        }
        factorial *= j;
      }
      System.out.println(i + "! is " + factorial);
    }
  }
}

The code above generates the following result.

• Next »
• « Previous