Float doubleValue() method in Java with examples

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

Syntax:

FloatObject.doubleValue()

Return Value: It return the double value of this Float object.



Below programs illustrate doubleValue() method in Java:

Program 1:

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// Java code to demonstrate
// Float doubleValue() method
  
class GFG {
    public static void main(String[] args)
    {
  
        // Float value
        float a = 17.65f;
  
        // wrapping the Float value
        // in the wrapper class Float
        Float b = new Float(a);
  
        // doubleValue of the Float Object
        double output = b.doubleValue();
  
        // prdoubleing the output
        System.out.println("Float value of "
                           + b + " is : " + output);
    }
}

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Output:

Float value of 17.65 is : 17.649999618530273

Program 2:

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// Java code to demonstrate
// Float doubleValue() method
  
class GFG {
    public static void main(String[] args)
    {
  
        // Float value
        float a = 6.0f;
  
        // wrapping the Float value
        // in the wrapper class Float
        Float b = new Float(a);
  
        // doubleValue of the Float Object
        double output = b.doubleValue();
  
        // prdoubleing the output
        System.out.println("Float value of "
                           + b + " is : " + output);
    }
}

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Output:

Float value of 6.0 is : 6.0

Reference: https://docs.oracle.com/javase/7/docs/api/java/lang/Float.html#doubleValue()



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