Fill and object array

Question

I have too many books and not enough understanding on this subject.
I am trying to fill an object type array with values and am totally confused. In my application, I successfully create a constructor in one file and test the object with some values in another file. I have two objects for employee and would like to place the object values into an object array. There is plenty of information on int[] arrays, but little on object arrays.
After I can do the array fill:
I would like to provide object values with JOptionPane.
Change the print display to show all array elements
But one thing at a time.
I was thinking that objects exist first, then are loaded or filled into an object array. I seem to misunderstand as I am not performing the array fill very well. Following a book example seems to confuse me only more.
Thank you
//emp.java
import java.util.*;
public class Emp {
   private int id;
   private String name;
   private double salary;
   public Emp(int ident, String nm, double sal) {
     id = ident;
     name = nm;
     salary = sal;
   // method raise salary by 5 percent
   double raise() { return salary * 1.05;} // ends raise method
   // setters and getters
   public String getName()              { return(name); }
   public double getSalary()            { return(salary); }
   public int getID()                   { return(id); }
   public void setName(String nm)       { name = nm; }
   public void setSalary(double sal)    { salary = sal; }
   public void setID(int ident)         { id = ident; }
}The test file
//EmpTest.java
import javax.swing.JOptionPane;
public class EmpTest {
   public static void main(String[] args_) {
             // Create object based on EmployeeTest2 class
             // to add employee data to the array called empArray
             Emp emp1 = new Emp(1,"Smith",2000);
             Emp emp2 = new Emp(2,"Jones",2500);
             //test and confirm the objects emp1 and emp2
                 int i;
                 String n;
                 double s;
                 double newsal;
                 // get the salary after the 5 percent raise
                 i = emp1.getID();
                 n = emp1.getName();
                 s = emp1.getSalary();
                 newsal = emp1.raise();
                 System.out.println("object Employee 1 ID: " + i + " Name: " + n + " Old Salary: " + s + " New salary: " + newsal);
                 i = emp2.getID();
                 n = emp2.getName();
                 s = emp2.getSalary();
                 newsal = emp2.raise();
                 System.out.println("object Employee 2 ID: " + i + " Name: " + n + " Old Salary: " + s + " New salary: " + newsal);
     // get the number of employees with JOptionPane
     String employeeCountString = JOptionPane.showInputDialog(
         "Employee Database " +
         "\nEnter the number of employees: ");
     // convert into an integer empcount
     int employeeCount = Integer.parseInt(employeeCountString);
     // initialize the empArray.
     Employee2[] empArray = new Employee2[employeeCount];
     fill(empArray);
     printContents(empArray);
   } //end main method
   private static void fill(Object[] my_arr) {
       int i;
       for (i = 0; i < my_arr.length; i = i + 1) {
     // get the name from the keyboard
     String employeeName = JOptionPane.showInputDialog(
         "Enter the employee name: ");
         // do something here to set the array element to employeeName
     // get the salary
     String employeeSalaryString = JOptionPane.showInputDialog(
         "Enter the employee monthly salary: ");
     //convert into a double
     double employeeSalary = Double.parseDouble(employeeSalaryString);
        //do something here to set array for salary
          my_arr[i] = new Employee2(1,"S1",5); // temporary values here
       } //ends for loop
   } // ends method
   private static void printContents(Object[] the_arr) {
      int i;
      for (i = 0; i < the_arr.length; i = i + 1) {
        System.out.print("Element: " + i);
        //System.out.println(" has the value : " + the_arr);
System.out.println(" has the value : " + i);
} //ends for loop
} // ends printContents method
} // ends EmpTest class

Answer 1

what's the matter ?
Try this :
import javax.swing.JOptionPane;
public class EmpTest {
     public static void main(String[] args_) {
          // Create object based on EmployeeTest2 class
          // to add employee data to the array called empArray
          Emp emp1 = new Emp(1, "Smith", 2000);
          Emp emp2 = new Emp(2, "Jones", 2500);
          // test and confirm the objects emp1 and emp2
          int i;
          String n;
          double s;
          double newsal;
          // get the salary after the 5 percent raise
          i = emp1.getID();
          n = emp1.getName();
          s = emp1.getSalary();
          newsal = emp1.raise();
          System.out.println("object Employee 1 ID: " + i + " Name: " + n + " Old Salary: " + s + " New salary: "
                    + newsal);
          i = emp2.getID();
          n = emp2.getName();
          s = emp2.getSalary();
          newsal = emp2.raise();
          System.out.println("object Employee 2 ID: " + i + " Name: " + n + " Old Salary: " + s + " New salary: "
                    + newsal);
          // get the number of employees with JOptionPane
          String employeeCountString = JOptionPane.showInputDialog("Employee Database "
                    + "\nEnter the number of employees: ");
          // convert into an integer empcount
          int employeeCount = Integer.parseInt(employeeCountString);
          // initialize the empArray.
          Emp[] empArray = new Emp[employeeCount];
          fill(empArray);
          printContents(empArray);
     } // end main method
     private static void fill(Object[] my_arr) {
          int i;
          for (i = 0; i < my_arr.length; i = i + 1) {
               // get the name from the keyboard
               String employeeName = JOptionPane.showInputDialog("Enter the employee name: ");
               // do something here to set the array element to employeeName
               // get the salary
               String employeeSalaryString = JOptionPane.showInputDialog("Enter the employee monthly salary: ");
               // convert into a double
               double employeeSalary = Double.parseDouble(employeeSalaryString);
               // do something here to set array for salary
               my_arr[i] = new Emp(1, employeeName, employeeSalary); // temporary values here
          } // ends for loop
     } // ends method
     private static void printContents(Object[] the_arr) {
          int i;
          for (i = 0; i < the_arr.length; i++) {
               System.out.print("Element # "+i+" Name= "+ ((Emp)the_arr).getName());
               System.out.print("Salary # "+i+" Salary = "+ ((Emp)the_arr[i]).getSalary());
          } // ends for loop
     } // ends printContents method
} // ends EmpTest class