What's wrong with my code if everything works???
Thanks for help in advance:)
package com.codegym.task.task07.task0717;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
/*
Duplicating words
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
ArrayList<String> list = new ArrayList<>();
for(int i = 0; i < 10; i++){
String a = reader.readLine();
list.add(a);
}
doubleValues(list);
for(String m : list){
System.out.println(m);
}
}
public static void doubleValues(ArrayList<String> list) {
for(int k = list.size()-1; k >= 0; k--){
String x = list.get(k);
list.add(k + 1, x);
}
}
}