String Byte Buffer Stream Example

import java.io.ByteArrayInputStream;
import java.io.InputStream;
 
  public static void main(String[] args) throws Exception
  {
    // Create a 5-Byte (40-Bit) buffer
    // Note: 5-Bytes are 5 characters in UTF-8 (8-Bit per character)
    int bufferSize = 5;
    byte[] buffer = new byte[bufferSize];
    // Read bytes of a string into buffer
    String text = "Hello World!";
    InputStream is = new ByteArrayInputStream(text.getBytes());
    int bytesRead = is.read(buffer, 0, bufferSize);
    // Print result
    String bufferContent = new String(buffer);
    System.out.println("Bytes read: " + bytesRead); // Bytes read: 5
    System.out.println("Result: " + bufferContent); // Result: Hello
    // Print result with a stream reader
    ByteArrayInputStream bais = new ByteArrayInputStream(buffer);
    BufferedReader br = new BufferedReader(new InputStreamReader(bais));
    bufferContent = br.readLine();
    System.out.println("Bytes read: " + bytesRead); // Bytes read: 5
    System.out.println("Result: " + bufferContent); // Result: Hello
  }
}