what should I do to duplicate it
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 read = new BufferedReader(new InputStreamReader(System.in));
for(int i = 0; i<10;i++)
{
String s = read.readLine();
list.add(i,s);
}
ArrayList<String> result = doubleValues(list);
for(int i = 0;i<result.size();i++)
{
System.out.println(result.get(i));
}
// Display result
}
public static ArrayList<String> doubleValues(ArrayList<String> list) {
//write your code here
ArrayList<String> list1 = new ArrayList<String>(20);
int j = 0;
int k = 0;
for(int i = 1;i<20;i=i+2)
{ list1.add(k,list.get(j));
list1.add(i,list.get(j));
j++;
k=k+2;
}
return list1;
}
}