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I want to created an editable cell, how should i do that?
As noted in a comment on this related example, a TableCellEditor serves the JTable view. Instead, let your model calculate the dependent value when related cells in the same row are changed. You can do this in your implementation of getValueAt() or setValueAt().
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I am using apache poi creating the excel. I want to create the structure shown in above image.
I am not aware how to customise as per the image.
You can use
sheet.addMergedRegion(new CellRangeAddress(rowFrom,rowTo,colFrom,colTo));
And specify the row numbers and column numbers accordingly.
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How to select multiple list item in Android?
Which code do I use? If this code is right then what is next?
Use Multiple select adapter in list view you can find many library
like ManuelPeinado/MultiChoiceAdapter
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I am a very new programmer, it is part of my degree requirements and I am having a hard time with it. I am working on basically a three part GUI and I am wondering how I would create a JTextArea that will display each item that is entered.
Start by taking a look at Creating a GUI With JFC/Swing, this will give you a basic grounding in how to use Swing.
Take a closer look at How to Use Text Areas for specific details about how to use JTextArea
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Is there a way I can set a listener for if the TextArea is edited by the user?
If that is not possible, can I add one to its focus?
Get the document the text area is using via textArea.getDocument()
Then write a document listener. The document listener will tell you whenever the user edits the text area.
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I need to make a listview like the pic shows, but in Java.
E.G. from Delphi Listview
I've tried to use JList but it didn't work quite right, I couldn't make columns, just rows. Could someone help me?
Try using JTable and do your own research for how to use JTable.