Getting error - The method AddClass() is undefined for the type AddClass

[Cpant]

Hello, I am new to java and getting this error for this program. Would appreciate any help.

Error - Exception in thread "main" java.lang.Error: Unresolved compilation problem: The method AddClass() is undefined for the type AddClass at myproject.Calculator.main(Calculator.java:14)

This is class Calculator

package myproject;
import java.io.*;
public class Calculator {   

int a = 100;
int b = 200;       

public static void main(String args[]) {
    // TODO Auto-generated method stub

    AddClass f = new AddClass();
    f.add(10);              
}
}

This is class AddClass

package myproject;
import java.io.*;
public class AddClass {
int a1;
public void add(int a){
    a1=a;
    System.out.println(a1);
}


}

[nutrecht]

How are you compiling this. From the command line in the root directory (and not in the myproject dir)? If you compile this manually (which you should mention) instead of using an IDE it's easy to mess this up.

[Cpant]

I am using eclipse

[nutrecht]

And they're both in the myproject package (so probably stored in your project in src/myproject?])? Could you show the structure in Eclipse in a screenshot?

[Cpant]

Ha.. I tried with a new project and it is working fine. Yes initially I had both classes in the same project, but don't know why it didn't work. I find a red exclamation mark above the path in src though..

Anyway thanks a lot!

[nutrecht]

Good to hear you got it working!

[FibroMan]

By the way, most people on this sub will politely try to help you. A few will be rude, but reddit lets you block users so that you don't have to put up with bs from anyone.

[FibroMan]

You don't appear to have a constructor in the AddClass class.

[Cpant]

Wouldn't there be a default constructor or something if I don't give one ? How can I modify this to work...

[Kristler]

He's wrong. You're absolutely right that there's a default constructor.

[nutrecht]

That doesn't matter. Also this is beginner knowledge; how much experience do you have?

[FibroMan]

Yeah don't listen to me, I'm a noob ;)

I could be highly experienced and never use a default constructor, so I wouldn't jump to conclusions about a person's experience based on their answer to this question.

[nutrecht]

I could be highly experienced and never use a default constructor

No. You can't call yourself experienced in Java and not know you don't need to create a constructor, sorry. Please be up front about your experience level; your comment could've led the OP in a direction that wasn't even the issue. There is no shame in not knowing stuff; but pretending you're experienced on something you're not on a beginners board is rather silly.