如何使字符串从基于组合框数组的数组中获取元素

Question

I miss something and I will appreciate your help I have this array for a combobox

String array [] = {"aa", "bb", "cc"};

and I have this for loop to run all over the array

for(String s: array) {
    if(s.equals(array[0]) {
        //do something
    }
}

Now what I need is that, I need the "do something" to happen to each element in the array only when the element is selected by the combobox, my array is so long and I can't write if statement for each element in the array.

What I want is something like that

for(String s : array) { 
  if(s equals the array elements) {
      substring the first index of each element
      print s
      so result let's say will be like this
      a ----> if only element a is selected
      b ----> if only element b is seleceted
      etc ...
  }
}

Answer 1

This fixed my problem, thank you all and sorry for disturbing you

for(String s: arrar) {
  if(combobox.getSelectedItem().equals(s)) {
     do something;
    }
}   

Answer 2

As px06 said, you might want to add an event listener on your Combobox and then handle item selection. Here is code snippet for what you are looking for:

String[] array = {"aa", "bb", "cc"};
JComboBox comboBox = new JComboBox(array);
comboBox.addActionListener(new ActionListener() {

    @Override
    public void actionPerformed(ActionEvent event) {
        JComboBox<String> combo = (JComboBox<String>) event.getSource();
        String selectedItem = (String) combo.getSelectedItem();

        if (selectedItem.equals("<some-choice>")) {
            //do something
        } else if (selectedItem.equals("<some-other-choice>")) {
            //do something else...
        }
    }
});

However I do not see how you can escape checking which item was selected if you want to do something specific based on selection.

I hope this helps.