Java long doubleValue() method example

public double doubleValue()

The doubleValue() method of Long class returns the numeric value represented by this object after conversion to type double.

Requires Java 1.0 and up

Below is a simple java example on the usage of doubleValue() method of Long class.

package com.javatutorialhq.java.examples;

/*
 * This example source code demonstrates the use of  
 * doubleValue() method of Long class
 */

public class LongDoubleValueExample {

	public static void main(String[] args) {

		// Declare a new Long variable
		Long value = 123l;

		// get the doubleValue() method result
		double result = value.doubleValue();

		// print the result
		System.out.println("Result:" + result);
		
		/*
		 * Be careful on using this method
		 * Desired result might differ
		 * because of the widening concept
		 * of java language
		 */

	}

}

Below is the sample output when you run the above example.

• Java Long Class Tutorial
• Java Tutorial

• Oracle Java Documentation