Java Double byteValue() Method

The byteValue() method of Java Double class returns the value of this double as a byte after a narrowing primitive conversion.

The byteValue () method of class Double overrides the byteValue () method of class Number.

Syntax

Return value

This method returns the double value represented by this object that has been converted to type byte.

Example 1

public class DoubleByteValueExample1{

    public static void main(String[] args) {


        Double doubleValue1= new Double("10.44");
        Double doubleValue2=new Double("10");

        Double c= doubleValue1-doubleValue2;
        System.out.println("Difference = "+c);


        //method is returning the value of Double as byte
        byte byteValue1=doubleValue1.byteValue();
        byte byteValue2=doubleValue2.byteValue();

        double d= byteValue1-byteValue2;
        System.out.println("Difference = " +d);
    }
                }

Test it Now

Output:

Difference = 0.4399999999999995
Difference = 0.0

Example 2

public class DoubleByteValueExample2{

    public static void main(String[] args) {


        Double doubleValue1= new Double("66.12");
        Double doubleValue2=new Double("22");

        Double c= doubleValue1+doubleValue2;
        System.out.println("Sum = "+c);


        //method is returning the value of Double as byte
        byte byteValue1=doubleValue1.byteValue();
        byte byteValue2=doubleValue2.byteValue();

        double d= byteValue1+byteValue2;
        System.out.println("Sum = " +d);
    }
                }

Test it Now

Output:

Sum = 88.12
Sum = 88

Example 3

public class DoublebyteValueExample3{

    public static void main(String[] args) {

     // by typecasting double to byte
        double d1= 10.5;
        byte b1=(byte)d1;
        System.out.println("double value = "+d1);
        System.out.println("Converted byte value by type casting = "+b1);

     }
}

Test it Now

Output:

double value = 10.5
Converted byte value by type casting = 10

Example 4

import java.lang.Double;
import java.util.Scanner;


public class DoubleByteValueMethodExample4{

    public static void main(String[] args) {

        System.out.println("Enter your digit");
        Scanner scanner=new Scanner(System.in);
        Double d1=scanner.nextDouble();

       double val1= (d1%d1.byteValue());


       if(val1 >= 0.5) {
           int val2=d1.byteValue()+1;
           System.out.println("After rounding off the number becomes : "+val2);
       }
       else{
           System.out.println("After rounding off the number becomes : "+d1.byteValue());
       }

     
     }
}

Test it Now

Output:

Enter your digit
56.7
After rounding off the number becomes : 57

Next TopicJava Double

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Java Double byteValue() Method

Syntax

Return value

Example 1

Example 2

Example 3

Example 4

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