Form called by other form

[paulo cs]

How can I do to call a form from another form? Exemple:
I've a Main Form. From this I need to call other Form. I have a main menu(with some menu item) and this menu item I need to call a form. How can I do? Thanks.

[Campbell Ritchie]

Sounds a Swing-related question, so I shall move it.

But first I shall suggest that you can pass a reference to one Component to the constructor of a class which extends another Component, then they can have references to each other and can pass messages back and forth to each other.
There is another possibility: you can invoke methods like Component#getParent() which can directly find the parent component, and then find its methods.

[Olivier Legat]

In the same way you call the Main Form.

eg.

class MainForm extends JFrame
{
public MainForm()
{ //Code here
}
public void callSubForm() {
new SubForm();
}
}
class SubForm extends JFrame
{
public SubForm()
{
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
//code
}
}