Old style: Use an array to pass a variable number of arguments

  
public class PassArray {
  static void vaTest(int v[]) {
    System.out.print("Number of args: " + v.length + " Contents: ");

    for (int x : v)
      System.out.print(x + " ");

    System.out.println();
  }

  public static void main(String args[]) {
    int n1[] = { 10 };
    int n2[] = { 1, 2, 3 };
    int n3[] = {};

    vaTest(n1); // 1 arg
    vaTest(n2); // 3 args
    vaTest(n3); // no args
  }
}

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Old style: Use an array to pass a variable number of arguments : Varargs « Language Basics « Java

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