CODEWITHSUNDEEP
java
lecardo
lecardo

Reputation: 1212

Java compiling error when passing values between classes

I'm trying to pass a JTEXTFIELD value I created in class 2 to class 3. My terminal when compiling shows me this:

error: incompatible types
        username = class2.username;

My code structure is this.

    class 1
    - has main
    -class2 c2 = new class2

    class 2 (extends JFrame)
    - JTextField username = new JTextField("", 15);
    -method gui here
    -method actionlistener here
       if e.getsource == submit
          class3 c3 = new class3
          c3.connection();

class 3
-method connection
-string username declared here
- username = class2.username

How can i get the value from class 2 into class 3?

Upvotes: 0

Views: 39

Answers (1)

Nico
Nico

Reputation: 3489

You were getting the error because you are assigning JTextField to a String which would result in incompatible types error.

To be able to get the value of JTextField you have to use the getText() method like so:

username = class2.username.getText();

getText() returns a String which you can then assign to any String you like.

Here is the documentation for getText(): http://docs.oracle.com/javase/7/docs/api/javax/swing/text/JTextComponent.html#getText()

Upvotes: 1

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