Covert a String object to String binary representation in Java

StringToBinary.java

public class StringToBinary {

  // https://stackoverflow.com/a/917190
  public static void main(String[] args) {
    final String s = args.length > 0 ? args[0] : "foo";
    final byte[] bytes = s.getBytes();
    StringBuilder binary = new StringBuilder();
    for (byte b : bytes) {
      int val = b;
      System.out.println("byte  b=" + b);
      System.out.println("int val=" + val);
      for (int i = 0; i < 8; i++) {
        final int bit = (val & 128) == 0 ? 0 : 1;
        System.out.println("int bit=" + bit);
        binary.append(bit);
        val <<= 1;// https://stackoverflow.com/a/141873
        System.out.println("shf val=" + val);
      }
      binary.append(' ');
      System.out.println("==============================");
    }
    System.out.println(s);
    System.out.println(binary);
  }
}