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Byte class defines static methods to convert string value to byte value.

Return	Method	Summary
static Byte	valueOf(byte b)	Returns a Byte instance representing the specified byte value.
static Byte	valueOf(String s)	Returns a Byte object holding the value given by the specified String.
static Byte	valueOf(String s, int radix)	Returns a Byte object holding the value extracted from the specified String when parsed with the radix given by the second argument.
static byte	parseByte(String s)	Parses the string argument as a signed decimal byte.


public class Main {
  public static void main(String[] args) {
    System.out.println("parse string to byte:"+Byte.parseByte("10"));
  }
}

The output:


parse string to byte:10

Return	Method	Summary
static byte	parseByte(String s, int radix)	Parses the string argument as a signed byte in the radix specified by the second argument.

In the following code we convert string 10 based on radix 8.


public class Main {
  public static void main(String[] args) {

    System.out.println("parse string to byte:"+Byte.parseByte("10", 8));
  }
}

The output:


parse string to byte:8

And we use the valueOf methods in the same way:


public class Main {
  public static void main(String[] args) {
    
    System.out.println("parse string to byte:"+Byte.valueOf("10"));
    System.out.println("parse string to byte:"+Byte.valueOf("10", 8));
  }
}

The output:


parse string to byte:10
parse string to byte:8

« Decode a string to a byte

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