Java - Double Class byteValue() Method

Double class byteValue() method: Here, we are going to learn about the byteValue() method of Double class with its syntax and example. By Preeti Jain Last updated : March 23, 2024

Double class byteValue() method

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

Syntax

public byte byteValue();

Parameters

It does not accept any parameter.

Return Value

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

Example

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

public class ByteValueOfDoubleClass {
    public static void main(String[] args) {
        // Variables initialization
        double d1 = 18.20;
        double d2 = 19.20;

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

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

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

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

    }
}

Output

do1.byteValue(): 18
do2.byteValue(): 19

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