Replace All Elements Of Vector with Collections.fill : Vector « Collections « Java Tutorial

1. Java Tutorial
2. Collections
3. Vector

import java.util.Collections;
import java.util.Vector;

public class Main {
  public static void main(String[] args) {
    Vector<String> v = new Vector<String>();

    v.add("A");
    v.add("B");
    v.add("D");

    System.out.println(v);
    Collections.fill(v, "REPLACED");
    System.out.println(v);
  }
}
/*
[A, B, D]
[REPLACED, REPLACED, REPLACED]
*/