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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 Solution:

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.

Program/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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