[SOLVED] few steps i need help with

[ubermeister]

ok this is what my assignment calls for. i need to create a main() function that would implement as having the following steps:

1. creating an object employee1 w/out perameter
2.creating an object employee2 with the following parameters (mary,1111,42000)
3.display employee1 data
4.display employee2 data
5. calling getData function to enter data for employe1
6.redisplaying employee1 data
7. creating an arrary of employee objects with 3 members
8. writing the loop statment to accept data and print data for each of the array member.

this is what i have so far:

Code:

public class TestEmployeeClass
{
		public static void main(String[] args)
		{

		EmployeeClass s1= new EmployeeClass();
			s1.display();
			s1.displayTotal();

		EmployeeClass s1= new EmployeeClass(MARY,1111,7500);
			s1.display();
			s1.displayTotal();

THIS code below is the 2nd part to it. (the code below works fine, use as guide for the one above)

Code:

import java.util.Scanner;
public class EmployeeClass
{
	static int total=0;

	//member data

	String name;
	int id;
	double salary;



	//constructor

	EmployeeClass()
	{
		name="";
		id=0;
		salary=0.0;
	}

	EmployeeClass(String n,int i, double s)
	{

		name=n;
		id=i;
		salary=s;
	}

	public void getdata()
	{
		Scanner kb= new Scanner(System.in);
		String s;

		System.out.print("Enter Name : ");
		name=kb.nextLine();

		System.out.print("Enter ID : ");
		id=kb.nextInt();

		//class buffer

		s=kb.nextLine();

		System.out.print("Enter Salary : ");
		name=kb.nextLine();
	}
	public void display()
	{
		System.out.printf("NAME = %s\n",name);
		System.out.printf("ID = %s\n",id);
		System.out.printf("SALARY = %s\n",salary);

	}
}

[Eranga]

Hi ubermeister,

Welcome to our community.

Seems to me your application is ok, so what is your question there?

[ubermeister]

Quote:

Originally Posted by Eranga

Hi ubermeister,

Welcome to our community.

Seems to me your application is ok, so what is your question there?

thanks i need help with steps 1-8 for the first code I put above. I think i have followed 1-4 so its just steps 5-8 i need assistance doing.

[Eranga]

You have to get data at the TestEmployeeClass I think. Then after using instance and appropriate constructors do the processing. Got it?

[ubermeister]

ya i know that has to be done but HOW do you go about doing that.

take step 5.

i wouldn't know what to do after this

public void getdata()
{

[Eranga]

You asking that how to implement that method? There have few errors in your code. Try this.

Code:

   // Collect data from the user        
	public void getdata() {
		Scanner kb = new Scanner(System.in);

		System.out.print("Enter Name : ");
		name = kb.nextLine();

		System.out.print("Enter ID : ");
		id = kb.nextInt();

		System.out.print("Enter Salary : ");
		salary = kb.nextInt();
	}

[ubermeister]

Quote:

Originally Posted by Eranga

You asking that how to implement that method? There have few errors in your code. Try this.

Code:

   // Collect data from the user        
	public void getdata() {
		Scanner kb = new Scanner(System.in);

		System.out.print("Enter Name : ");
		name = kb.nextLine();

		System.out.print("Enter ID : ");
		id = kb.nextInt();

		System.out.print("Enter Salary : ");
		salary = kb.nextInt();
	}

nonono thats not the code i'm referring to.
i'm talking about the FIRST code i have up i need to ADD a getData function with employee1 info in the main() function.

[Eranga]

Ah, you asking how to call that function on an employee object.

Code:

    public static void main(String[] args) {
		EmployeeClass s1= new EmployeeClass();
			s1.display();

		EmployeeClass s2= new EmployeeClass("MARY",1111,7500);
			s2.display();
			
                EmployeeClass s3 = new EmployeeClass();
                        s3.getdata();
                        s3.display();
    }

[ubermeister]

Quote:

Originally Posted by Eranga

Ah, you asking how to call that function on an employee object.

Code:

    public static void main(String[] args) {
		EmployeeClass s1= new EmployeeClass();
			s1.display();

		EmployeeClass s2= new EmployeeClass("MARY",1111,7500);
			s2.display();
			
                EmployeeClass s3 = new EmployeeClass();
                        s3.getdata();
                        s3.display();
    }

yes!!! ty ty now how do you redisplay employee1 data

[Eranga]

As like this.

Code:

s1.display();

Since you have set the default values, display that. If you want to get the data from the user and display, call the getData() first and then display them.

[ubermeister]

Quote:

Originally Posted by Eranga

As like this.

Code:

s1.display();

Since you have set the default values, display that. If you want to get the data from the user and display, call the getData() first and then display them.

thank you very much my last question is how you do step 8?

[Eranga]

Did you create an array of Employee objects? If so, loop them on each and do the same process.

[ubermeister]

Quote:

Originally Posted by Eranga

Did you create an array of Employee objects? If so, loop them on each and do the same process.

Code:

EmployeeClass[] students= new EmployeeClass[3];
	for(int k =0;k < employee.length; k++)
	{
System.out.printf("\nWorking on employee : %d\n", (k+1));
// create an instance for each member

employees[k] = new StudentClass();
employees[k].getdata();
employees[k].display();
employees[k].displayTotal();

thats my array i just don't know what to WRITE for the loops.

[Eranga]

In simple way you can do this pal.

Code:

                EmployeeClass[] collection = new EmployeeClass[] {new EmployeeClass(), 
                new EmployeeClass(), new EmployeeClass()};
                
                for(int i = 0; i < collection.length; i ++) {
                    collection[i].getdata();
                }
                for(int j = 0; j < collection.length; j++) {
                    collection[j].display();
                }

What is displayTotal() do. I can't see anything about it.

[ubermeister]

i'm taking those out

[Eranga]

Is that what you looking for?

[ubermeister]

ya that last bit of code was it now i'm just debugging thanks for all your help!!!

[Eranga]

Oki, do it and let me know what happened. And there are so many way to do this.

[ubermeister]

ya theirs a million way to do this yet 1 mistake screws everythign up >_< (i'm more of a networking guy!!)

these are my errors

Code:

C:\Documents and Settings\Beserk\Desktop\TestEmployeeClass.java:24: cannot find symbol
symbol  : variable employee
location: class TestEmployeeClass
				for(int k =0;k < employee.length; k++)
				                 ^
C:\Documents and Settings\Beserk\Desktop\TestEmployeeClass.java:28: cannot find symbol
symbol  : variable employees
location: class TestEmployeeClass
					employees[k] = new EmployeeClass();
					^
C:\Documents and Settings\Beserk\Desktop\TestEmployeeClass.java:29: cannot find symbol
symbol  : variable employees
location: class TestEmployeeClass
					employees[k].getdata();
					^
C:\Documents and Settings\Beserk\Desktop\TestEmployeeClass.java:30: cannot find symbol
symbol  : variable employees
location: class TestEmployeeClass
					employees[k].display();

final code

Code:

public class TestEmployeeClass
{
		public static void main(String[] args)
		{

		EmployeeClass s1= new EmployeeClass();
			s1.display();


	EmployeeClass s2= new EmployeeClass("MARY",1111,75000);
			s2.display();


	EmployeeClass s3 = new EmployeeClass();
		    s3.getdata();
		    s3.display();

		s1.display();



	//array
	EmployeeClass[] students= new EmployeeClass[3];
	for(int k =0;k < employee.length; k++)
		{
          System.out.printf("\nWorking on employee : %d\n", (k+1));

// create an instance for each member
	employees[k] = new EmployeeClass();
             employees[k].getdata();
	employees[k].display();


   EmployeeClass[] collection = new EmployeeClass[] {new EmployeeClass(),
	 new EmployeeClass(), new EmployeeClass()};

        for(int i = 0; i < collection.length; i ++) {
        collection[i].getdata();
 }
      for(int j = 0; j < collection.length; j++) {
      collection[j].display();
     }
}
}
}

[Eranga]

Yes, there is a big error. I can't find any array named employee there. It should be students

Did you use any IDE for coding?