CODEWITHSUNDEEP
javaswingnetbeans
user2869385
user2869385

Reputation:

Want access of textfield from another .java file within a program

I have many .java files within my project. From FTall.java i want to access {text field} t1 ('main' jFrame -> jPanel2) of the FormTTS.java

T1 is here

I am right now getting errors due to that only, because it cannot find symbol t1.

It is private and i cant change it to public

Edit: I am using this code already to open up FTall from the FormTTS.java: In a button in FormTTS

     FTall forma = new FTall();
JFrame frame = forma.getFrame();
forma.setVisible(true);

and this in FTall

 public JFrame getFrame() {
     return jFrame1;
}

Upvotes: 2

Views: 2351

Answers (2)

MadProgrammer
MadProgrammer

Reputation: 347334

Because of the way your code is structure, you need to supply some way for FormTTS.t1

In FormTTS, provide a method to exposes t1, something like getMainTextField for example...

public JTextField getMainTextField() {
    return t1;
}

You're next problem is FTall is going to need a reference to an instance of FormTTS. Probably the easiest way would be to pass a reference to the constructor of FTall

private FormTTS mainForm;

public FTall(FormTTS mainForm) {
    this.mainForm= mainForm;
}

This will allow you to access t1 by simply using the mainForm reference...

JTextField field = mainForm.getMainTextField();

Personally, I would prefer not to expose the text field as it gives too much access to callers, instead I'd prefer to return the text and if required provide a means to change it...

So in FormTTS, I might do something like...

public String getMainText() {
    return t1.getText();
}

// Do this only if you need to have write access
public void setMainText(String text) {
    t1.setText(text);
}

But that's just me...

To obtain the value, you would use a similar approach as above (to getting the text field)

String text = mainForm.getMainText();

Upvotes: 2

RTA
RTA

Reputation: 1299

if i am understanding your question its simple first ensure that your text field come in to scope before access and once it come in, then use a setter to set its refrence in required class then you can access it.

Upvotes: 0

Related Questions