Java Byte Keyword

by Online Tutorials Library July 22, 2022

Java byte keyword

The Java byte keyword is a primitive data type. It is used to declare variables. It can also be used with methods to return byte value. It can hold an 8-bit signed two’s complement integer.

Points to remember

The byte range lies between -128 to 127 (inclusive).
Its default value is 0.
It is useful to handle the st

ream of data from a network or file.

It is also useful for saving memory in large arrays.
It can be used in place of the int data type.

Examples of Java byte keyword

Example 1: Using byte with variable

  public class ByteExample1 {    public static void main(String[] args) {    byte num1=127;    byte num2=-128;      System.out.println(“num1 : “+num1);  System.out.println(“num2 : “+num2);    }  }  

Test it Now

Output:

Example 2: byte lies out of range

  public class ByteExample2 {    public static void main(String[] args) {    byte num1=128;    byte num2=-129;      System.out.println(“num1 : “+num1);  System.out.println(“num2 : “+num2);    }  }  

Output:

Example 3: Using byte with a method

  public class ByteExample3 {    byte age=18;    public byte display()  {  return age;  }  public static void main(String[] args) {  ByteExample2 b=new ByteExample2();    System.out.println(“The age must be: “+b.display());      }  }  

Output:

The age must be: 18

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Java byte keyword

Points to remember

Examples of Java byte keyword

Example 1: Using byte with variable

Example 2: byte lies out of range

Example 3: Using byte with a method

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