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Java program to remove all elements of Vector collection contained in the specified collection

Given a Vector collection, we have to remove all elements of it contained in the specified collection.
Submitted by Nidhi, on May 24, 2022

Problem Solution:

In this program, we will create two Vector collections with different types of elements. Then we will remove all elements of the Vector collection contained in the specified collection using the removeAll() method.

Program/Source Code:

The source code to remove all elements of the Vector collection contained in the specified collection is given below. The given program is compiled and executed successfully.

// Java program to remove all elements of Vector collection 
// contained in the specified collection

import java.util.*;

public class Main {
  public static void main(String[] args) {
    Vector vec1 = new Vector();
    Vector vec2 = new Vector();

    vec1.add(10);
    vec1.add(20.5);
    vec1.add(true);
    vec1.add("Hello World");

    vec2.add(10);
    vec2.add(true);

    System.out.println("Vector Vec1 : " + vec1);
    System.out.println("Vector Vec2 : " + vec2);

    vec1.removeAll(vec2);

    System.out.println("\nVector Vec1 : " + vec1);
    System.out.println("Vector Vec2 : " + vec2);
  }
}

Output:

Vector Vec1 : [10, 20.5, true, Hello World]
Vector Vec2 : [10, true]

Vector Vec1 : [20.5, Hello World]
Vector Vec2 : [10, true]

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 2 Vector collections vec1, vec2 with different types of elements. Then we used the removeAll() method and remove all elements in Vector collection vec1 contains in specified collection vec2. After that, we printed the updated vector collections.

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