Java code

Question

import java.util.*;
import java.util.Collections;
import java.util.Set;
import java.util.Scanner;
import java.util.List;
class students
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
System.out.println("Please enter number of students");
int n= sc.nextInt();
String[] str = new String[n];
System.out.println("Please enter array elements");
for (int i = 0; i <=n; i++)
{
str[i] = sc.nextLine();
}
List<String> list = Arrays.asList(str);
Set<String> s = new HashSet<String>(list);
for (String freq : s )
{
System.out.println(freq + "-->" + Collections.frequency(list, freq));

}
}
}
I can u say wts wrng in this code????

Answer 1

You have space for n elements but you are trying to store n+1 elements.

Answer 2

1st for loop.
It should be i < n.

Answer 3

which line??? i didnt understood

Answer 4

I don't find...but don't forget to close the Scanner with sc.close()