Connections behind classes

Question

Hi! Could You help me resolve the problem with passing on object value from one class to another one. To clearing the situation I'll give You an example:
I' ve got three classes: classOne (with main method), classTwo, classThree
public class classOne {
 classOne() {
     //makes the GUI using swing
          JButton button = new JButton()
          button.addActionListener(new ActionListener() {
               public void actionPerformed(ActionEvent e) {
          classTwo cl2 = new classTwo();
          cl2.show()
          JButton button1 = new JButton()
          button1.addActionListener(new ActionListener() {
               public void actionPerformed(ActionEvent e) {
          classThree cl3 = new classThree();
          cl3.show()
class classTwo {
     classTwo(){
     //another GUI
     JButton button1 = new JButton()
          button1.addActionListener(new ActionListener() {
               public void actionPerformed(ActionEvent e) {
          classThree cl3a = new classThree();
          cl3a.show()
class classThree {
//another GUI
That's all...
First I open classOne window (all it's swing) and I can open classTwo or classTree window with swing GUI. When I open classTwo, I can open class Three from there. I'd like to know how to send String value from GUI classThree to JTextField in GUI classTwo.

Answer 1

"I'd like to know how to send String value from GUI classThree to JTextField in GUI classTwo."
It really depends upon your overall design structure just how you do this, though the easier or more obvious way would be to have a method in class2, something like;-
public void setUpText(String str){
myTextfd.setText(str);
and in class3;-
class2 c2 = new class2();
c2.setUpText("Hello World");