백준 2750번: 수 정렬하기

문제 출처: https://www.acmicpc.net/problem/2750

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Arrays;
 
public class Main {
    
    public static void main(String[] args) throws Exception {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        int N = Integer.parseInt(reader.readLine());
        int[] arr = new int[N];
        
        for(int i=0 ; i<N ; i++)
            arr[i] = Integer.parseInt(reader.readLine());
        
        Arrays.sort(arr);
        
        StringBuilder builder = new StringBuilder();
        for(int i=0 ; i<N ; i++)
            builder.append(arr[i]).append("\n");
        
        System.out.println(builder);
    }
}