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Java Double class floatValue() method with example

Double class floatValue() method: Here, we are going to learn about the floatValue() method of Double class with its syntax and example.
Submitted by Preeti Jain, on September 22, 2019

Double class floatValue() method

  • floatValue() method is available in java.lang package.
  • floatValue() method is used to return the value denoted by this Double object converted to type float (by casting).
  • floatValue() method is a non-static method, it is accessible with class object only and if we try to access the method with the class name then we will get an error.
  • floatValue() method does not throw an exception at the time of conversion from Double to float.

Syntax:

    public float floatValue();

Parameter(s):

  • It does not accept any parameter.

Return value:

The return type of this method is float, it returns a converted (from type Double to float) value represented by this Double object.

Example:

// Java program to demonstrate the example 
// of float floatValue() method of Double class

public class FloatValueOfDoubleClass {
    public static void main(String[] args) {
        // Variables initialization
        double d1 = 30.20;
        double d2 = 40.20;

        // It returns double value denoted by this Double do1 object
        // and converted to a float by calling do1.floatValue()
        Double do1 = new Double(d1);

        // Display do1 result
        System.out.println("do1.floatValue(): " + do1.floatValue());

        // It returns double value denoted by this Double do2 object
        // and converted to a float by calling do2.floatValue()
        Double do2 = new Double(d2);

        // Display do2 result
        System.out.println("do2.floatValue(): " + do2.floatValue());
    }
}

Output

do1.floatValue(): 30.2
do2.floatValue(): 40.2





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