Java.lang.Double.equals() Method

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Description

The java.lang.Double.equals() method compares this object against the specified object. The result is true if and only if the argument is not null and is a Double object that represents a double that has the same value as the double represented by this object.

Declaration

Following is the declaration for java.lang.Double.equals() method

public boolean equals(Object obj)

Parameters

obj − This is the object to compare with.

Return Value

This method returns true if the objects are the same, else false.

Exception

NA

Example

The following example shows the usage of java.lang.Double.equals() method.

package com.tutorialspoint;

import java.lang.*;

public class DoubleDemo {

   public static void main(String[] args) {

      // compares this object against the specified object
      Double obj1 = new Double("2");
      Double obj2 = new Double("2.0");
      System.out.print(obj1 + " = " + obj2);
      System.out.println(" ?  " + obj1.equals(obj2));

      obj1 = new Double("3");
      obj2 = new Double("5");
      System.out.print(obj1 + " = " + obj2);
      System.out.println(" ?  " + obj1.equals(obj2));  
   }
} 

Let us compile and run the above program, this will produce the following result −

2.0 = 2.0 ? true
3.0 = 5.0 ? false