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public class Program {
	public static void main(String[] args){
		String s1 = "test";
		String s2 = "testttt";

		s2 = s2.substring(0,4);

		System.out.println("s1:\t\t" + s1);
		System.out.println("s2:\t\t" + s2);

		System.out.println("s1 == s2:\t" + (s1 == s2)); //Schlägt fehl
		System.out.println("s2 == \"test\":\t" + (s2 == "test")); //Schlägt fehl
		System.out.println("s1 == \"test\":\t" + (s1 == "test")); //Funktioniert

		System.out.println("s1.equals(s2):\t" + s1.equals(s2)); //Funktioniert
		System.out.println("s2.equals(s1):\t" + s1.equals(s2)); //Funktioniert


	}
}