如何从JTextField获取和传递值

Question

I've created class with JTextField and I want to get this value and use in other class.

public class Create{
 JTextField user;

public Create(){
  user =new JTextField(10);
  }
public  String getUser(){
  return user.getText();
  }



public class ReviewWindow{
 JLabel luser1;
 public ReviewWindow(){
  Create create = new Create();
  luser1= new JLabel(create.getUser()); //I want to get this value here.
    }
  }

Answer 1

So usually there is an action that is associated with getting a value from a JTextField. For example a button named "save" that is pressed once the user is finished typing in the JTextfield. So set up a button (an tutorial/explanation can be found here ) add an action listener to that button. Inside that actionlistener function, grab the text from JtextField (JtextField.getText()) and pass it to your other class via a getter/setter function or constructor.