Java: Convert byte array to string

String class provides below constructors to construct byte array to string.

public String(byte bytes[])

Convert the byte array to string by using platform default character encoding.

public String(byte bytes[], String charsetName)

public String(byte bytes[], Charset charset)

Convert the byte array to string by using the specified character encoding.

Example

byte[] input = { 72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100 };

String str = new String(input);

str = new String(input, StandardCharsets.UTF_8);

App.java

package com.sample.app;

import java.nio.charset.StandardCharsets;

public class App {

 public static void main(String args[]) {
  byte[] input = { 72, 101, 108, 108, 111, 32, 87, 111, 114, 108, 100 };
  String str = new String(input);
  System.out.println(str);

  str = new String(input, StandardCharsets.UTF_8);
  System.out.println(str);
 }
}

Output

Hello World

Hello World

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