Can you see my error?
package de.codegym.task.task09.task0921;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
/*
Methode in einem try-catch
*/
public class Solution {
public static void main(String[] args){
readData();
}
public static void readData(){
//schreib hier deinen Code
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
boolean a = true;
ArrayList<Integer> liste = new ArrayList<Integer>();
int zu = 0;
while(a){
String s = reader.readLine();
int tu = Integer.parseInt(s);
try{
liste.add(zu, tu);
zu++;
}
catch(NumberFormatException e){
a = false;
for(Integer i : liste){
System.out.println(i);
}
}
}
}
}