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Java program to remove elements from Vector collection based on a specified predicate

Given a Vector collection, we have to remove elements based on a specified predicate.
Submitted by Nidhi, on May 25, 2022

Problem statement

In this program, we will create a Vector collection with integer elements. Then we will remove the elements from vector collection based on the specified predicate using the removeIf() method.

Source Code

The source code to remove elements from Vector collection based on specified predicate is given below. The given program is compiled and executed successfully.

// Java program to remove elements from Vector collection 
// based on a specified predicate

import java.util.*;

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

    vec.add(10);
    vec.add(20);
    vec.add(30);
    vec.add(11);
    vec.add(12);

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

    vec.removeIf(val -> (val >= 20));

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

Output

Set elements: [1, 2, 3, 4, 5, 6]
Items removed successfully.
Set elements: [1, 2, 3]

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 with integer elements. Then we used removeIf() method to remove elements from vector vec based on the specified predicate and printed the updated collection.

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