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Double doubleValue() method in Java with examples
  • Difficulty Level : Basic
  • Last Updated : 09 Oct, 2018

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


Output:

Double value of 17.47 is : 17.47

Program 2:




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


Output:

Double value of 54.1 is : 54.1

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