program to display employee who have salary more than 20000

Declare a class called employee having employee_id and employee_name as members. Extend class employee to have a subclass called salary having designation and monthly_salary as members. Define following:

- Required constructors

- A method to find and display all details of employees drawing salary more than Rs. 20000/-.

- Method main for creating an array for storing these details given as command line arguments and showing usage of above methods.



import java.util.Scanner;
class Employee
{
String[] employee_id;
String[] employee_name;
}

class Salary extends Employee
{
String[] Designation;
double[] monthly_salary;

Salary(int j)
{
/*initialization of array */

employee_name=new String[j];
employee_id=new String[j];
Designation=new String[j];
monthly_salary= new double[j];

}

void display(int j)
{


System.out.println("---------------------------------------------------------------");
System.out.println("---------------------------------------------------------------");
System.out.println("\t Details of employee who have salary above 20000");
System.out.println("---------------------------------------------------------------");
System.out.println("---------------------------------------------------------------\n \n");


System.out.format("%-15s %-15s %-25s %-10s %n","employee id","employee name","employee Designation","Monthly Salary");
System.out.println("----------------------------------------------------------------------------");
for(int i=0;i<j;i++)
{

if(monthly_salary[i]>=20000)
{
System.out.format("%-15s %-15s %-25s %-10s %n",employee_id[i],employee_name[i],Designation[i],monthly_salary[i]);

}
}
}


public static void main(String [] args)
{
Scanner jaimin=new Scanner(System.in);
int length=args.length;

Salary obj = new Salary(length);


if(length==0)
{
System.out.println("please enter employee id");
}

for(int i=0;i<length;i++)
{
obj.employee_id[i]=args[i];

System.out.println("\n\n enter the details of \""+args[i]+"\" employee id");

System.out.print("\n name of employee -->");
obj.employee_name[i]=jaimin.next();

System.out.print("\n Designation of employee -->");
obj.Designation[i]=jaimin.next();

System.out.print("\nMonthly salary of employee -->");
obj.monthly_salary[i]=jaimin.nextDouble();


}

obj.display(length);
}
}

output