How to Convert Byte Array to String in Java

1. Use new String() to Convert a Byte Array to a String in Java
2. Use getBytes() to Convert a String to a Byte Array in Java

This tutorial discusses methods to convert a byte array to string in Java

Use new String() to Convert a Byte Array to a String in Java

The simplest way to convert a byte array to a string in Java is to create a new string from the byte array with the encoding defined. The below example illustrates this:

import java.util.*;

public class MyClass {
  public static void main(String args[]) {
    byte[] bytes = {};
    String str = new String(bytes, java.nio.charset.StandardCharsets.UTF_8);
  }
}

We used StandardCharsets.UTF_8 in the above example. Depending on the encoding of our byte array, we will have to change it respectively.

Use getBytes() to Convert a String to a Byte Array in Java

The simplest way to convert a string to a byte array in Java is by using getBytes(). The below example illustrates this:

import java.util.*;

public class MyClass {
  public static void main(String args[]) {
    String str = "Sample text";
    str.getBytes(java.nio.charset.StandardCharsets.UTF_8);
  }
}