Question

How to copy all the elements of one vector to another vector in Java

Answer 1

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

public class MyClass {
    public static void main(String args[]) { 
        Vector<String> v1 = new Vector<String>();

        v1.add("java");
        v1.add("c");
        v1.add("c++");
        v1.add("php");
        v1.add("javascript");

        Vector<String> v2 = new Vector<String>();
        
        v2.add("aa");
        v2.add("bb");
        v2.add("c");
        v2.add("dd");
        v2.add("ee");
        v2.add("ff");
        
        Collections.copy(v2, v1);

        System.out.println(v2);
    }
}
  
  
  
/*
run:
  
[java, c, c++, php, javascript, ff]

*/

 

70+ SQL courses for beginners and professionals