Detect non-ASCII characters in string

    

import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.util.Arrays;

public class Main {
  public static void main(String[] args) throws Exception {
    byte[] invalidBytes = " ".getBytes();
    byte[] validBytes = "(c)".getBytes();

    CharsetDecoder decoder = Charset.forName("US-ASCII").newDecoder();
    CharBuffer buffer = decoder.decode(ByteBuffer.wrap(validBytes));
    System.out.println(Arrays.toString(buffer.array()));

    buffer = decoder.decode(ByteBuffer.wrap(invalidBytes));
    System.out.println(Arrays.toString(buffer.array()));
  }
}

Related examples in the same category

1.	List the Charset in your system
2.	Converting Between Strings (Unicode) and Other Character Set Encodings
3.	Charset encoding test
4.	encoder and decoder use a supplied ByteBuffer
5.	Translate Charset
6.	Displays Charsets and aliases
7.	Encode and Decode
8.	extends CharsetDecoder to create Base64 Decoder
9.	extends Charset to create Hex Charset
10.	Get the default charset
11.	Charset Toolkit
12.	Defines common charsets supported in all Java platforms.
13.	How to auto-detect a file's encoding

Detect non-ASCII characters in string : Charset « I18N « Java

Related examples in the same category