error
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 {
// Read strings from the console and declare an ArrayList here
ArrayList<String> list = new ArrayList<String>();
BufferedReader buffer = new BufferedReader(new InputStreamReader(System.in));
for(int i=0; i<10;i++){
list.add(buffer.readLine());
}
ArrayList<String> result = doubleValues(list);
// Display result
for(String s : list){
System.out.println(s);
}
}
public static ArrayList<String> doubleValues(ArrayList<String> list) {
//write your code here
for(int i=0;i<list.size();i++){
list.add(i,list.get(i));
}
return list;
}
}