Java For Loop

Loops through a block of code a number of times.

Examples

Standard For Loop

Prints numbers 0 to 4.

public class Main {
  public static void main(String[] args) {
    for (int i = 0; i < 5; i++) {
      System.out.println(i);
    }
  }
}

Even Numbers

Prints only even numbers.

public class Main {
  public static void main(String[] args) {
    for (int i = 0; i <= 10; i = i + 2) {
      System.out.println(i);
    }
  }
}

Nested Loops

Loop inside a loop.

public class Main {
  public static void main(String[] args) {
     // Outer loop
    for (int i = 1; i <= 2; i++) {
      System.out.println("Outer: " + i);
      
      // Inner loop
      for (int j = 1; j <= 3; j++) {
        System.out.println(" Inner: " + j);
      }
    } 
  }
}

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