You are allowed to declare variables in the statement part. : for « Statements « SCJP

1. SCJP
2. Statements
3. for

//The scope of d is restricted to block following the for() statement.
public class MainClass {
  public static void main(String[] argv) {
    for (int i = 0, d = 0; i < 5; i++) {
      System.out.println(i);
      System.out.println(d);
    }
  }
}

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