Java.lang Package Classes

Java Integer - doubleValue() Method

The java.lang.Integer.doubleValue() method returns the value of this Integer as a double after a widening primitive conversion.


public double doubleValue()


No parameter is required.

Return Value

Returns the numeric value represented by this object after conversion to type double.




In the example below, the java.lang.Integer.doubleValue() method returns a Integer object after conversion to type double.

import java.lang.*;

public class MyClass {
  public static void main(String[] args) {
    //creating Integer objects
    Integer val1 = 25;
    Integer val2 = -25;

    //printing doubleValue of the Integer objects
    System.out.println("doubleValue of the val1 is: " + val1.doubleValue()); 
    System.out.println("doubleValue of the val2 is: " + val2.doubleValue());   

The output of the above code will be:

doubleValue of the val1 is: 25.0
doubleValue of the val2 is: -25.0

❮ Java.lang - Integer