Closed. This question needs debugging details. It is not currently accepting answers.
Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 8 years ago.
Improve this question
So I made a frame for user to key in the name and student id in JTextField. I implemented ActionListener to get the text from the text fields. Now I want to retrieve the text to be displayed in a different frame. How do I do that?
Use getText() method to get whatever was typed in a JTextField:
String text = yourtextfield.getText();
Related
Closed. This question needs debugging details. It is not currently accepting answers.
Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 4 years ago.
Improve this question
I need to update an ArrayList if object exists based on id in the object.
Thanks in Advance
Arraylist have a mArrayList.contains() method and than you can get the element index by looping and update item if you are requesting to update in the ArrayList and not somewhere else :
mArrayList.set(yourdesiredIndexOfTypeInt , desiredValueOrObject);
Closed. This question needs debugging details. It is not currently accepting answers.
Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 5 years ago.
Improve this question
I have a some trouble about my own simple android project. I save data pair (key-value), and I dont want to save same data. ( for example: I save the data "Car"- "Blue" once. and then application can not permisson save again same the data.) I wrote already update method but I couldnt use for search & control data repetition. How can I solve ?
Make the combination of the two columns a Primary Key
You can also use if else block along with SELECT statement to validate inputs.
Closed. This question needs debugging details. It is not currently accepting answers.
Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 6 years ago.
Improve this question
So there will be a text field that I disable using the textField.setEnabled(false) method. However later on in the code I want to enable this text field back again. textField.setEnabled(true) does not work at this moment.
How should I address this problem?
Try to create a Jtextfield like instance variables
Closed. This question needs debugging details. It is not currently accepting answers.
Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 6 years ago.
Improve this question
I'm having some trouble with my code. I have a number of lists, lists 1, 2 and 3 contain elemets so that when I click them they appear in list 4.
My goal is to have a number appear in a JTextField that will change every time an element is added to list 4.
This is the code I have in order for me to do that but it doesn't work and I don't know why.
jtextfield.setText(java.lang.String.valueOf(list4.getModel().getSize()));
The java.lang.String is weird I know but eclipse told me to change it.
Thank you!
You should use a ListDataListener. An event will be generated any time the DefaultListModel is updated by adding or removing an item.
Then you simply invoke the code you posted above.
Read the section from the Swing tutorial on How to Write a ListDataListener for more information and working examples.
Closed. This question needs debugging details. It is not currently accepting answers.
Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 7 years ago.
Improve this question
My program contains of a JDialog with a button which opens a JFileChooser. After Clicking on this Button my main JDialog gets hidden even if it's set to modal. This shouldnt happen.
What to do?
Setting the JDialog as a parent to the JFileChooser should "hold" it in place.