Java Number byteValue() Method

The byteValue() is a method of Java Number class which automatically converts the given number into a primitive byte type and returns the value of the specified number as a byte.

Syntax:

Following is the declaration of byteValue() method:

Parameter:

DataType	Parameter	Description
byte	NA	It returns the value of number object as byte.

Returns:

The byteValue() method returns the numeric value represented by this object after conversion to the primitive byte type.

Exceptions:

Compatibility Version:

Java 1.1 and above

Example 1

public class NumberByteValueExample1 {
	public static void main(String[] args) {		
		Integer i = 123456;		 
            //Convert number value into byte type
            int Result = i.byteValue();
            System.out.println("Number as Byte: "+Result);
	      }
}

Test it Now

Output:

Number as Byte: 64

Example 2

public class NumberByteValueExample2 {
	public static void main(String[] args) {		
		Integer i = -123456;
		Float f = 435f;
		Double d = 65868.685;
            //Convert number value into byte type
            System.out.println("Integer Number as Byte: "+i.byteValue());
            System.out.println("Float Number as Byte: "+f.byteValue());
            System.out.println("Double Number as Byte: "+d.byteValue());
	      }
}

Test it Now

Output:

Integer Number as Byte: -64
Float Number as Byte: -77
Double Number as Byte: 76

Example 3

import java.io.IOException;
import java.util.Scanner;
public class NumberByteValueExample3 {
	public static void main(String[] args)throws IOException {
		Scanner scan = new Scanner(System.in);
		System.out.print("Enter the Number Value: ");
		Integer num = scan.nextInt();	
            //Convert number value into byte type
		System.out.println("Integer Number as Byte: "+num.byteValue());          
            scan.close();
	      }
}

Output:

Enter the Number Value: ABCDEF
Exception in thread "main" java.util.InputMismatchException
	at java.base/java.util.Scanner.throwFor(Scanner.java:939)
	at java.base/java.util.Scanner.next(Scanner.java:1594)
	at java.base/java.util.Scanner.nextInt(Scanner.java:2258)
	at java.base/java.util.Scanner.nextInt(Scanner.java:2212)
	at myPackage.NumberByteValueExample3.main(NumberByteValueExample3.java:9)

Next TopicJava Number Class

← prev next →