I don't understand what's wrong? In my IDEA all works!

import java.io.IOException;
import java.util.Scanner;


public class summa {
    public static void main(String[] args) throws IOException {
        Scanner s = new Scanner(System.in);
        int n = s.nextInt();
        int[] mas = new int[n*n];
        if(n!= 0) {
            for (int i = 0; i < n * n; i++) {
                mas[i]=s.nextInt();
            }
            if(mas.length>1) {
                qSort(mas, 0, mas.length-1);
                for (int i = 0; i < mas.length; i++) {
                    System.out.print(mas[i] + " ");
                }
            }else System.out.println(mas[0]);
        }else System.out.println("0 элемнтов");
    }

    public static void qSort(int[] A, int low, int high) {
        int i = low;
        int j = high;
        int x = A[(low+high)/2];
        do {
            while(A[i] < x) ++i;
            while(A[j] > x) --j;
            if(i <= j){
                int temp = A[i];
                A[i] = A[j];
                A[j] = temp;
                i ++ ; j --;
            }
        } while(i <= j);

        if(low < j) qSort(A, low, j);
        if(i < high) qSort(A, i, high);
    }
}

Edited by author 02.10.2014 20:36

Edited by author 02.10.2014 20:36