bilangan dan string

public class Contohstring {

  public static void main(String[] args) {

  byte data[] = new byte[6];

  data[0] = 64;

  data[1] = 65;

  data[2] = 66;

  data[3] = 67;

  data[4] = 68;

  data[5] = 69;

  String s1 = "Belajar Java";

  String s2 = new String ("Operasi String");

  String s3 = new String(data);

  String s4 = new String(data,2,3);

  System.out.println(s1);

  System.out.println(s2);

  System.out.println(s3);

  System.out.println(s4);

  }

}