listselectionlistener

问题 I'm using ListSelectionListener to update my JTextField (countryTxt) from selected row. import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.JTextField; import javax.swing.SwingUtilities; import javax.swing.event.ListSelectionEvent; import javax.swing.event.ListSelectionListener; import javax.swing.table

问题 I have a problem with the selection of rows on my JTable instances. This is what I would like to to: I want to have two equal tables with the same data in the rows. When you select a row on the first table, e g the third row, I also want the third row on the second table to be selected automatically. I have solved this by adding a ListSelectionListener to the JTable that updates a class that just hold the selected value. Then that class triggers the other JTable with the selected value from

问题 Having problems with the ComboBox , I have populated multiple ComboBox es with the same model, but when I run my program and select a value from one ComboBox it selects the same value for the rest. ComboHBoy.setModel(defaultComboBoxModel); ComboHGirl.setModel(defaultComboBoxModel); ComboDHBoy.setModel(defaultComboBoxModel); ComboDHGirl.setModel(defaultComboBoxModel); 回答1: That's because they all are referenced to the same model , any change of the model will affect the all the other combos.

问题 I am curious as to how to call valueChanged overridden method only if a row in JTable has been double clicked. For now the below code snippet achieves one click action or event arrow key to navigate through a list of people and would adjust JLabel accordingly. What I'm trying to do is something similar just like I did for one click, but this time IF and ONLY IF a row has been double clicked dto would change else nothing happens. How do I do this :( class ListDataUI { public void

问题 I am curious as to how to call valueChanged overridden method only if a row in JTable has been double clicked. For now the below code snippet achieves one click action or event arrow key to navigate through a list of people and would adjust JLabel accordingly. What I'm trying to do is something similar just like I did for one click, but this time IF and ONLY IF a row has been double clicked dto would change else nothing happens. How do I do this :( class ListDataUI { public void

问题 I have one JTable which show list of book and it can be filtered and sort BookSwing.java package com.bookretailer.ui; import java.awt.Component; import java.awt.EventQueue; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.util.ArrayList; import java.util.List; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.JTextField; import javax.swing

问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 7 years ago . I have to delete a selected row in JTable using the Key Event. When I select a row and press the Delete Key, the selected row values should be deleted. How can I do this? 回答1: You have to get the selected Rows

问题 I'm creating a program that reads data from a file, displays it on a GUI that has a JList and JButtons. I am trying to write it with CardLayout so the appropriate JPanel can be displayed when an item is selected from the JList or a JButton is clicked (i.e. next, previous, first and last). I am able to successfully read from the file and display data to the GUI. I've run into 2 problems and I've tried searching online for answers but cant seem to figure it out: 1) How do I get the JPanels to

问题 I want to change border of cell whenever it is selected regardless by mouse or by keyboard. It is hard to find smth on net. I tried to use ListSelectionListener but this doesn't work. If you know some good way to change cell's border, please, reply. I welcome any ideas. Thank you! 回答1: Use a customized TableCellRenderer to do something different when the cell is selected. http://docs.oracle.com/javase/tutorial/uiswing/components/table.html#renderer Looking at the code from the above example

问题 So, here is the thing. I wanted to experiment a bit. So, i wrote this program which looks for images with (.jpg) extension in my mnt/shared/Newpictures folder in my GennyMotion Emulator. In my program, i captured the name of the files with .jpg extension in a String array adapter and the file path in a filepath string array. Now, here is the part where i am blank, i have the path,name and i can get the position by clicking on the list. But how do i open the image when i click on the list. I