public class StringVergleich
{
  public static void main(String[] args)
  {
    String s1 = "gleich";
    String s2 = "ch";
    String s3 = new String("gleich");
    String s4 = new String("gleich");
    String s5 = s1;
    String s6 = "gleich";

    System.out.println(s1 == "gleich");
    System.out.println(s1 == "glei" + s2);
    System.out.println(s1 == s3);
    System.out.println(s3 == s4);
    System.out.println(s1 == s5);
    System.out.println(s1 == s6);
    System.out.println(s1.equals("glei" + s2));
    System.out.println(s3.equals(s4));
  }
}