Java - Integer Class equals() Method

Integer class equals() method: Here, we are going to learn about the equals() method of Integer class with its syntax and example. By Preeti Jain Last updated : March 18, 2024

Integer class equals() method

equals() method is available in java.lang package.
equals() method is used to check equality or inequality of this Object against the given Object or in other words we can say this method is used to compare two objects.
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 comparing two Objects.

Syntax

public boolean equals(Object ob);

Parameters

Object ob – represents the Object to compare with.

Return Value

The return type of this method is boolean, it returns a boolean value, it returns "true" if Object1 is equal to Object2, else it returns "false".

Example

// Java program to demonstrate the example 
// of boolean equals(Object o) method of Integer class

public class EqualsOfIntegerClass {
    public static void main(String[] args) {
        // Integer Object initialization
        Integer ob1 = new Integer(10);
        Integer ob2 = new Integer(20);

        // Display ob1,ob2 values
        System.out.println("ob1: " + ob1);
        System.out.println("ob2: " + ob2);

        // It compare two objects of Integer type
        // by calling ob1.equals(ob2)
        boolean compare = ob1.equals(ob2);

        // Display result values
        System.out.println("ob1.equals(ob2): " + compare);

        if (compare == true)
            System.out.println("Both objects are equal");
        else
            System.out.println("Both objects are not equal");
    }
}

Output

ob1: 10
ob2: 20
ob1.equals(ob2): false
Both objects are not equal

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