Home » Java programming language

Java Vector equals() Method with Example

Vector Class equals() method: Here, we are going to learn about the equals() method of Vector Class with its syntax and example.
Submitted by Preeti Jain, on March 17, 2020

Vector Class equals() method

• equals() method is available in java.util package.
• equals() method is used to check whether this Vector is the same or equals to the given object (ob) or not.
• equals() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
• equals() method does not throw an exception at the time of checking the equality of two objects.

Syntax:

    public boolean equals(Object ob);

Parameter(s):

• Object ob – represents the object to be checked for equality.

Return value:

The return type of the method is boolean, it returns true when this object and the given object are equal otherwise it returns false.

Example:

// Java program to demonstrate the example 
// of boolean equals(Object ob) method 
// of Vector 

import java.util.*;

public class EqualsOfVector {
    public static void main(String[] args) {
        // Instantiates a Vector object  with
        // initial capacity of "10"
        Vector < String > v1 = new Vector < String > (10);
        Vector < String > v2 = new Vector < String > (10);

        // By using add() method is to add the
        // elements in this v1
        v1.add("C");
        v1.add("C++");
        v1.add("JAVA");

        // By using add() method is to add the
        // elements in this v2
        v2.add("SQL");
        v2.add("DBMS");

        // Display Vector
        System.out.println("v1: " + v1);
        System.out.println("v2: " + v2);

        // By using equals() method is to
        // check whether object v1 and v2 are
        // equals or not
        boolean status = v1.equals(v2);

        // Display status
        System.out.println("v1.equals(v2): " + status);
    }
}

Output

v1: [C, C++, JAVA]
v2: [SQL, DBMS]
v1.equals(v2): false