Double doubleValue() method in Java with examples

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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