How do I call a class in another class

Hi

Need some help here.. I have a Staff class and MyDate class. How do I call or shall I say return the value for MyDate class in Staff class. Staff class code as follows :-

import java.util.*;

public class Staff extends Person
{
private int salary;
private int dateHired;

public Staff(String name, String nricNo, String phoneNo, int salary)
{
super(name, nricNo, phoneNo);
this.salary = salary;
}

public void setSalary(int salary)
{
this.salary = salary;
}

public int getSalary()
{
return salary;
}

public String getDateHired()
{
return ?
}

public String toString()
{
super.toString();
String s = "Salary : " + salary;
return s;
}


}

Do you know about objects in Java (in any language)?

Look at the following code segment.

Code:

---

public class ClassOne {

    public static void main(String[] args) {
        // Create an object of ClassTwo
        ClassTwo objClassTwo = new ClassTwo();
       
        // Invoke a public method of ClassTwo
        objClassTwo.displayMessage();
    }

}

class ClassTwo {

    public void displayMessage() {
        System.out.println("message");
    }

}

---

Please check the spellings with the compiling the code.

But now i'm prompted cannot find symbol - constructor MyDate(). So where am i to add in the constructor for MyDate()?

Makes no sense. Please post your most recent code so we can see for ourselves. Also, please use code tags. Best of luck.

import java.util.*;

public class Staff extends Person
{
private int salary;
MyDate objMyDate = new MyDate();

public Staff(String name, String nricNo, String phoneNo, int salary)
{
super(name, nricNo, phoneNo);
this.salary = salary;
}

public void setSalary(int salary)
{
this.salary = salary;
}

public int getSalary()
{
return salary;
}

public String getDateHired()
{
return objMyDate.toString;
}

public String toString()
{
super.toString();
String s = "Salary : " + salary;
return s;
}


}

Again, please edit this post to add code tags, so that your code retains its formatting and is readable. Please read the link in my signature that tells you how to do this.

Also, please post the MyDate class code.

Code:

---

import java.util.*;
public class MyDate
{
    private int day;
    private int month;
    private int year;
   
    public MyDate(int D, int M, int Y)
    {
        day = D;
        month = M;
        year = Y;
       
    }
   
    public void setDay(int D)
    {
        day = D;
    }
   
    public int getDay()
    {
        return day;
    }
   
    public void setMonth(int M)
    {
        month = M;
    }
   
    public int getMonth()
    {
        return month;
    }
   
    public void setYear(int Y)
    {
        year = Y;
    }
   
    public int getYear()
    {
        return year;
    }
   
    public String toString()
    {
        String s = "Date : "  + day + "/" + month + "/" + year;
        return s;
    }
 
}

---

Sigh,... you still haven't edited your previous post to add code tags to it as has been asked several times. It's not difficult to do, and it would make it so much easier for others to help you. What is stopping you?

On to at least one problem, you are trying to create a MyDate object like so:

Code:

---

MyDate objMyDate = new MyDate();

---

but if you look at the MyDate constructor, it looks like so:

Code:

---

    public MyDate(int D, int M, int Y)
    {
        day = D;
        month = M;
        year = Y;
    }

---

It takes parameters, and you're not passing parameters when calling the constructor, and this is why the compiler is complaining -- it's telling you that it can't find a no-parameter constructor.

My recommendation: either give MyDate a no-parameter constructor or (probably better) call the MyDate constructor with the appropriate parameters, ... oh, and please make me happy by adding code tags to your other posted code. Best of luck.

Im sorry but i did add the code tags to MyDate class.

Quote:

---

Originally Posted by Roselicious

Im sorry but i did add the code tags to MyDate class.

---

And I appreciate that, but you can edit your previous posts and add tags there too. This way all can read your posts and get in on this discussion. Thanks.

Quote:

---

Originally Posted by Roselicious

Im sorry but i did add the code tags to MyDate class.

---

What Fubarable trying to point is that he ask several times to add code tags, but you waist more post to do that. Actually it's not a big deal.

Anyway, did you solve your problem now?

Quote:

---

Originally Posted by Eranga

Anyway, did you solve your problem now?

---

Nope. Please see the cross-post: New To Java - Need some help here

Another cross posting. I don't know why people doing this.

Elo guys

I believe i did mention in my intro that i need some refresh. Due to my working hours, i got no time to read up that amount of pages of text box nor attend class.. Thus with watever knowledge i have from poly, im using it now and its rusty. Thats the reason i joined this forum . I will appreciate if u guys can guide mi through so i can learn at the same time. This will be helpful to mi in a way. Hope it makes sense to y i joined this forum.

seriously im asking for help here and u guys keep telling mi why is this like that and this. doesnt make sense at all. then wats the purpose of this forum then ????????? im rushing for time every day. im just looking for help for the limited time i have.

That's why we are helping here too, personally I like to share my knowledge with others, specially with newbies in Java. So people had to have some ethics which are looking here in our forum. And some personal related stuff like cross-posting and stuff. Please pay your attention on that.

Anyway, Fubarable give you a comment about the constructor mismatch in your code. Did you fix it?

yah so im telling u guys i donno where i made the mistake and im not sure where to pass in where and how. i mean simply u guys can just teach mi like this is wrong u shouldnt be doing this , u should do this . in this way i can keep that in mind and i learn sth every day from u guys. i am thankful that u guys r helping mi but im expecting help in a way that it benefits mi faster for a rush environment here.

Look at the post number 9, last post send by Fubarable, again. There is the solution. Didn't you figure is out yet?

im having an error message saying class is expected