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Java program to copy elements of Vector collection into an array

Given a Vector collection, we have to copy its elements into an array.
Submitted by Nidhi, on May 20, 2022

Problem Solution:

In this program, we will create a Vector collection with string elements. Then we will copy elements of the Vector collection into an array using the copyInto() method.

Program/Source Code:

The source code to copy elements of Vector collection into an array is given below. The given program is compiled and executed successfully.

// Java program to copy elements of Vector collection 
// into an array

import java.util.*;

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

    String vehicles[] = new String[5];

    vec.add("CAR");
    vec.add("BUS");
    vec.add("BIKE");
    vec.add("TRUCK");

    System.out.println("Vector elements: " + vec);

    vec.copyInto(vehicles);

    System.out.println("Array elements: ");
    for (String v: vehicles)
      System.out.println(" " + v);
  }
}

Output:

Vector elements: [CAR, BUS, BIKE, TRUCK]
Array elements: 
 CAR
 BUS
 BIKE
 TRUCK
 null

Explanation:

In the above program, we imported the "java.util.*" package to use the Vector class. Here, we created a public class Main.

The Main class contains a main() method. The main() method is the entry point for the program. And, created a Vector collection vec and add elements to it. Then we create an array of strings. After that, we copied the elements of vector collection into a string array using the copyInto() method. After that, we printed the elements of the array.

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