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Java Integer class equals() method with example

Integer class equals() method: Here, we are going to learn about the equals() method of Integer class with its syntax and example.
Submitted by Preeti Jain, on September 26, 2019

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.


    public boolean equals(Object ob);


  • 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".


// 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");
            System.out.println("Both objects are not equal");


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

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