weird error

[Phaelax]

I keep getting this error: "cannot resolve symbol - constructor MyFileStructure()". I do have a class with that name, and in fact, the first time I tried to compile the code below, BlueJ even drew the arrow to the class. So why then can it not friggin see it? I even copy and pasted to make sure I had no dumb spelling mistakes in the class name.

    public static void main(String[] args)
    {
        if(args.length != 0)
        {
            MyFileStructure mf = new MyFileStructure();
            mf.setDirName(args[0]);
            mf.build();
            mf.list();
        }
    }

[cjard]

can you post more of the code?

you ahvent done soemthing daft like this have you?:

public class MyFileStructure{

  public void MyFileStructure(){
    ...

thats a method with the same name as the clas, not a coinstructor.. constructors have no return type:

public MyFileStructure(){

[Phaelax]

Nope, didn't do that.

public class MyFileStructure
{
    
    private String dirName; //name of top directory
    private MyDir mdir;     //name of top MyDir(holding complete directory structure)

    public MyFileStructure(String dirName)
    {
        dirName = dirName;
    }
}

I thought that a constructor that took no parameters was valid, whether I put one in or not. I just added a no argument constructor, and my test class compiled ok. Still can't run it, cause something is wrong with the machine. Keeps locking up when I try to run. I hate school computers.

[mikeBarr81]

if you don't specify any constructor at all i believe a default one is added for you when you compile it, but if you specify a constructor that takes parameters then no default constructor is added. You need to add one yourself (like you did).

[cjard]

i.e. the EMPTY constructor is only available when a class contains ZERO other constructors. modify your code:

public class MyFileStructure
{
    
    private String dirName; //name of top directory
    private MyDir mdir;     //name of top MyDir(holding complete directory structure)

    public MyFileStructure(){}

    public MyFileStructure(String dirName)
    {
        dirName = dirName;
    }
}