I don't see my mistake.
package de.codegym.task.task04.task0421;
/*
Jen oder Jen?
*/
import java.io.*;
public class Solution {
public static void main(String[] args) throws Exception {
//schreib hier deinen Code
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String s1 = reader.readLine();
String s2 = reader.readLine();
if(s1.intern() == s2.intern())
System.out.println("Die Namen sind identisch");
if(s1.length() == s2.length())
System.out.println("Die Namen sind gleich lang");
}
}