choice

[mharsijamel]

public void x()
{
Choice c1 = new Choice();
Choice c = new Choice();
//filling c with items
c.addItem(name);
...
//then
  c.addItemListener(new ItemListener(){
  public void itemStateChanged(ItemEvent e){
//filling de c1
c1.addItem(..)
}
  });
JButton button;
button.addActionListener(new ButtonBus(c.getSelectedItem(),c1.getSelectedItem()));
}

my problem is c1.getelectedItem() =null and out itemstatechange nloc
how could i have the selected item
please help me

[Norm]

What does getSelectedItem return if there are no selections?

[mharsijamel]

so how do get the showed item??

[Norm]

Does the Choice class have a get... method you could use?

[mharsijamel]

tha's me how is asking does there any method that help me to have the showed item in the Choice Component

[Norm]

how is asking does there any method that help me

You are expected to read the API doc for the Choice class and find a method that will do what you want.
Have you done that?
Which of the get... methods do you think would be useful?
If you have any specific questions about any of the get... methods, ask them here.

[mharsijamel]

i read Choice api but i didn't have any method that help to have the showed item

[Norm]

If the Choice class does not have any methods to get items from its menu list then I don't think you can do it.

[Norm]

If you are not sure which get.... method to use. Try using several of them and print out the values that they return.
Then look at what is printed to see which method returned what you want.

[mharsijamel]

my problem is that when i print result into "itemstatechange" bloc of c1.getSelectedItem is ok
but out this bloc i have null as result
so how could i have the selected item out "itemstatechange" bloc

[Norm]

when i print result into "itemstatechange" bloc of c1.getSelectedItem is ok
but out this bloc i have null as result

By "print" do mean assign?
This problem sounds like you have two variables with the same name at different scopes.
You assign the local variable a value which goes away when you exit a method. The variable at the other level of scope does not get any value and stays null.

[mharsijamel]

public void x()
{
String x="";
Choice c1 = new C
Choice();
Choice c = new Choice();
//filling c with items
c.addItem(name);
...
//then
  c.addItemListener(new ItemListener(){
  public void itemStateChanged(ItemEvent e){
//filling de c1
c1.addItem(..)
x=c1.getSelectedItem();
System.out.println("x1="+x);
}
  });
System.out.println("x2="+x);
}

that's have as result
x1="the selected item"
x2=null
my question is how to get the value of xthe selected item of c1(Choice) out of itemstatechange

[Norm]

Define x at the class level, not inside of a method.

Your sample code is not very helpful. The indentation is very poor. The alignment of { and } is bad.
These 2 lines of code are junk:

Choice c1 = new C
Choice();