Java Short byteValue() method example

Important Notes:

• The method byteValue() overrides byteValue in class Number

public short shortValue()

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

Requires Java 1.1 and up

Below is a simple java example on the usage of byteValue() method of Short class.

package com.javatutorialhq.java.examples;

/*
 * This example source code demonstrates the use of 
 * byteValue() method of Short class.
 */

public class ByteValueExample {

	public static void main(String[] args) {

		// instantiate a new Short object
		Short value = 12;

		// convert value of Short object type to byte primitive
		byte bytePrimitive = value.byteValue();

		// print the result
		System.out.println("Byte object " + value +
				" primitive value is " + bytePrimitive);
		
		
		// test the narrowing conversion
		// byte range is -128 to 127
		
		value = 312;
		bytePrimitive = value.byteValue();
		
		System.out.println("Byte object " + value +
				" primitive value is " + bytePrimitive);

	}

}

On the above example we have two result. First is when we created a new Short object with value 12. This is a straightforward conversion as we only converted a Short object into primitive byte. Since 12 is within the range of values allocated for Byte, then it will have the same value.

On the second instance we assign a value of 312 and then we attempt to convert into primitive type. There is no exception encountered but a narrowing conversion has taken place because byte value has only a range of -128 to 127. Since 312 is greater than 127, it will undergo a narrowing conversion.

Below is the sample output when you run the above example.

• Java Short Class Tutorial
• Java Tutorial

• Oracle Java Documentation