help me with this stupid program

package com.codegym.task.task05.task0532; import java.io.*; /* Task about algorithms */ public class Solution { public static void main(String[] args) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader (System.in)); // System.out.println ("Enter the amount of numbers to be scanned"); int n = Integer.parseInt ( reader.readLine () ); // System.out.println ( "Entered value for n is "+n ); int leastNum[] = new int[n]; // System.out.println ("Array size is "+leastNum); // for reading the data from keyboard least num array is declared // this array is fed from the keyboard . if(n > 0){ for(int i = 0; i < n ; i++){ leastNum[i]=Integer.parseInt ( reader.readLine () ); // System.out.println ("Value stored at "+ i+ "Location is"+leastNum[i]); } // System.out.println ("Least num length is "+leastNum.length); int maximum = Integer.MIN_VALUE; // System.out.println ("intial value of maximum is "+maximum); for(int i =0 ; i < n; i++){ if(maximum < leastNum[i]){ maximum = leastNum[i]; } } System.out.println(maximum); } else if(n <= 0){ } } }