Double doubleValue() method in Java with examples (original) (raw)

Last Updated : 11 Jul, 2025

The doubleValue() method of Double class is a built in method to return the value specified by the calling object as double after type casting. Syntax:

DoubleObject.doubleValue()

Return Value: It return the value of DoubleObject as double. Below programs illustrate doubleValue() method in Java: Program 1:

Java `

// Java code to demonstrate // Double doubleValue() method

class GFG { public static void main(String[] args) {

    // Double value
    Double a = 17.47;

    // wrapping the Double value
    // in the wrapper class Double
    Double b = new Double(a);

    // doubleValue of the Double Object
    double output = b.doubleValue();

    // print doubling the output
    System.out.println("Double value of "
                       + b + " is : " + output);
}

}

`

Output:

Double value of 17.47 is : 17.47

Program 2:

Java `

// Java code to demonstrate // Double doubleValue() method

class GFG { public static void main(String[] args) {

    String value = "54.1";

    // wrapping the Double value
    // in the wrapper class Double
    Double b = new Double(value);

    // doubleValue of the Double Object
    double output = b.doubleValue();

    // print doubling the output
    System.out.println("Double value of "
                       + b + " is : " + output);
}

}

`

Output:

Double value of 54.1 is : 54.1