Convert String to Byte Array in Java

Here is our string.

String str = "Asia is a continent!";

Now let us use a byte array and the getBytes() method to fulfill our purpose.

byte[] byteVal = str.getBytes();

Now, if we will get the length of the array, it would return the length as shown in the complete example below −

Example

 Live Demo

public class Demo {    public static void main(String args[]) {       String str = "Asia is a continent!";       System.out.println(str);       // converted to byte array       byte[] byteVal = str.getBytes();       // getting the length       System.out.println(byteVal.length);    } }

Output

Asia is a continent! 20