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



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