Descending Order

Question about the task

Resolved

I tried running this code on a PC and it works fine. Why doesn't it work on Codegym? It keeps giving me an error message for Arrays.sort(arr);

package com.codegym.task.task04.task0420; /* Sorting three numbers */ import java.io.*; public class Solution { public static void main(String[] args) throws Exception { //write your code here BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); int numbers = Integer.parseInt(reader.readLine()); int arr[] = new int[numbers]; for(int i=0; i<numbers; i++){ System.out.println("Number " + (i + 1) + ": "); arr[i] = Integer.parseInt(reader.readLine()); } for(int i = arr.length - 1; i >= 0; i--) { Arrays.sort(arr); System.out.print(" " + arr[i]); } } }

Comments (1)

Popular
New
Old

You must be signed in to leave a comment

Guadalupe Gagnon

Level 37 , Tampa, United States

22 February 2021, 22:43

First this code will not pass. It specifically says to read 3 numbers from the keyboard. This code reads one number as the amount to loop through and reads that amount of numbers next. Also, you may have it in there for testing purposes, but line 18 will fail the task as the code should output no more than the task says to. Make sure that the instructions are followed as anything not followed will cause the validator to automatically fail the code. To fix your problem: The Arrays class is in a secondary library that will not be loaded unless specifically told so. You will need to add:

Import java.util.Arrays;

before or after the import statement that is already there. Some code style tips: - You're level 4, so this isn't a big deal yet, but you should always try to make sure you indent your code properly. It is not that hard to do so and is a big deal if you plan on eventually being hired as a programmer. - the line that Arrays.sort() is on a line inside a loop. You should rethink the placement of this line as the code should only sort the array 1 time.