NullPointer Exception. Please check the code

#1

import java.util.*;
public class Main {
public static void main(String args[]) {
// Your Code Here
Scanner scn = new Scanner(System.in);
int n = scn.nextInt();
int a = scn.nextInt();
class employee{
String name;
int salary;
}

    employee[] emp = new employee[a];
    for(int i=0; i<a; i++){
        emp[i].name = scn.nextLine();
        emp[i].salary = scn.nextInt();
        scn.nextLine();
    }

    for(int i=0; i<a-1; i++){
        for(int j=0; j<a-i-1; j++){
            if(emp[j].salary<emp[j+1].salary){
                employee temp = emp[j];
                emp[j]=emp[j+1];
                emp[j+1]=temp;
            }
            if(emp[j]==emp[j+1] && emp[j].name.compareTo(emp[j+1].name)<0){
                employee temp = emp[j];
                emp[j]=emp[j+1];
                emp[j+1]=temp;                                       
            }
        }
    }

    for(int i=0; i<a; i++){
        if(emp[i].salary<n)
            break;
        System.out.println(emp[i].name + " " + emp[i].salary);
    }
}

}

#2

@vishesh
Please add the following code below emp array.

employee[] emp = new employee[a];
for(int i=0;i<emp.length;i++) {
emp[i]=new employee();
}
Reason:The employee array is by default having null declaration at every index,which needs to be initialised.

#3

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