jcheckbox

how to add checkbox and combobox in table cell?

Here is combo cell insets replicate demo: import java.awt.*; import java.awt.event.*; import java.util.EventObject; import javax.swing.*; import javax.swing.event.*; import javax.swing.table.*; public class ComboCellInsetsDemo { public JComponent makeUI() { String[] columnNames = {“Name”, “Check”, “Condition”}; Object[][] data = { {“bbb”, false, “=”}, {“aaa”, true, “<“} }; DefaultTableModel model = new DefaultTableModel(data, columnNames) { @Override public Class<?> getColumnClass(int … Read more

Display JCheckBox in JTable

don’t add components to your TableModel, that’s not the responsibility of the TableModel You will need to specify the class type of your column. Assuming you’re using a DefaultTableModel, you can simply fill the column with a bunch of booleans and this should work – After testing, you will need to override the getColumnClass method … Read more

Java Swing: Need a good quality developed JTree with checkboxes

Answering myself: I decided to share my code with everyone. Here’s a screenshot of the result: The implementation details: Created a new class that extends JTree Replaced the ‘TreeCellRenderer’ by a new class I created, that shows a checkbox and a label. The checkbox selection is changed instead of the label background and border. Totally … Read more

Why does setSelected on JCheckBox lose effect?

It is a known bug as acknowledged by Oracle Bug ID:6924233 The JOptionPane apparently causes another event to be generated with a check box value = false. The recommended fix is to instantiate the JOptionPane using invokeLater. Submitted On 09-MAR-2010 The change is in the BasicButtonListener – Method focusLost() In 1.6.0_18 it is … ButtonModel … Read more

How do I make a list with checkboxes in Java Swing?

A wonderful answer is this CheckBoxList. It implements Telcontar’s answer (though 3 years before :)… I’m using it in Java 1.6 with no problems. I’ve also added an addCheckbox method like this (surely could be shorter, haven’t used Java in a while): public void addCheckbox(JCheckBox checkBox) { ListModel currentList = this.getModel(); JCheckBox[] newList = new … Read more

How to add checkboxes to JTABLE swing [closed]

1) JTable knows JCheckbox with built-in Boolean TableCellRenderers and TableCellEditor by default, then there is contraproductive declare something about that, 2) AbstractTableModel should be useful, where is in the JTable required to reduce/restrict/change nested and inherits methods by default implemented in the DefaultTableModel, 3) consider using DefaultTableModel, (if you are not sure about how to … Read more

Java Replace Line In Text File

At the bottom, I have a general solution to replace lines in a file. But first, here is the answer to the specific question at hand. Helper function: public static void replaceSelected(String replaceWith, String type) { try { // input the file content to the StringBuffer “input” BufferedReader file = new BufferedReader(new FileReader(“notes.txt”)); StringBuffer inputBuffer … Read more

Multiple row selection in JTable

Using @Hovercraft’s example and @camickr’s advice, the example below shows a suitable user interface. Although it uses buttons, the SelectionAction would also be suitable for a menu or popup. import java.awt.*; import java.awt.event.ActionEvent; import javax.swing.*; import javax.swing.DefaultListSelectionModel; import javax.swing.table.DefaultTableModel; /** @see http://stackoverflow.com/questions/4526779 */ public class CheckABunch extends JPanel { private static final int CHECK_COL = … Read more