How to print byte array in java?

In this example we will discuss how to print byte array in java . We will write a java program to print byte array . We will byte array using iteration in this example . In Second example we will convert byte by byte to int array then print decimal value of byte array . Let’s see these example one by one.

Print byte array In Java

We will initialize byte array in this example . Then we will iterate  this byte array and print value of element of byte array using System.out.print() method . See java code to print byte array in java .

public class PrintByteArray {
	
	public static void main(String[] args) {
		  //initialize byte array
		  byte[] a = { 1,2,3};
		  //iterate byte array
	      for(int i=0; i< a.length ; i++) {
	         System.out.print(a[i] +" ");
	      }
	      
	}

}

Output:

1 2 3

Convert bytes to decimal In java

In this example we will write a java program to print byte array as decimal in java . We will initialize byte array then we convert byte by byte to decimal and make a int array . After that we print element by element of this int array in this example .Let’s see java program for this .

public class PrintByteArrayAsChar {
	
	public static void main(String[] args) {
		  //initialize byte array
		byte[] bytes1 = new byte[] { -1, -128, 1, 127 };
		
		int[] bytesArray = bytearray2intarray(bytes1);
        for (int i : bytesArray) {
			System.out.print(" "+ i);
		}
		
	}
	
	 public static int[] bytearray2intarray(byte[] barray)
	 {
	   int[] iarray = new int[barray.length];
	   int i = 0;
	   for (byte b : barray)
	       iarray[i++] = b & 0xff;
	   return iarray;
	 }
	 

}

In this tutorial we how to print byte array in java. We converted byte to decimal then print int array .You can see more java program for practice .