The doubleValue() method of Integer class of java.lang package is used to convert the value of the given Integer to a Double type after a widening primitive conversion and returns it.
Syntax:
public double doubleValue()
Parameters: The method does not take any parameter.
Return Value: This method returns a numeric value represented by this object after conversion to double type.
Below programs illustrate java.lang.Integer.doubleValue() method.
Program 1:
// Code to illustrate doubleValue() methodimport java.lang.Integer;  class Gfg {      // Driver code    public static void main(String args[])    {        Integer a = new Integer(14);          // Convert Integer number to double value        double b = a.doubleValue();          System.out.println(b);    }} |
Output:
14.0
Program 2:
// Code to illustrate doubleValue() methodimport java.lang.Integer;  class Gfg {      // Driver code    public static void main(String args[])    {        Integer a = new Integer(120);          // Convert Integer number to double value        double b = a.doubleValue();          System.out.println(b);    }} |
Output:
120.0
