Что не так?
package com.javarush.task.task07.task0705;
import java.io.BufferedReader;
import java.io.InputStreamReader;
/*
Один большой массив и два маленьких
*/
public class Solution {
public static void main(String[] args) throws Exception {
int [] start = new int [20];
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
for (int i = 0; i < start.length; i++) {
start [i] = Integer.parseInt(reader.readLine());
}
int [] mass1 = new int [10];
int [] mass2 = new int [10];
System.arraycopy(start, 0, mass1, 0, 10);
System.arraycopy(start,10, mass2, 1, 10);
for (int i = 0; i < mass2.length; i++) {
System.out.println (mass2 [i]);
}
}
}