jtable

问题 Hi how can I copy data from my JTable into an ArrayList? I dont want the first row which is the columns name, I want everyother row. Thanks 回答1: If you are storing the data in the table with out using any object then just traverse row by row on the table and get every object and store it in the List. Example: This is when you are using a list to store the data. List<Object> list = new ArrayList<Object>; for(int row = 0; row < table.getRowCount(); row++) { for(int column = 0; column = table

问题 I have a three column jtable and want to have the first two columns have an Imageicon and a string right next to it. Currently I am displaying the ImageIcons like DefaultTableModel model = new DefaultTableModel(rows, columns) { @Override public Class<?> getColumnClass(int column) { switch (column) { case 0: case 1: return ImageIcon.class; case 2: return String.class; default: return Object.class; } } }; jTable.setModel(model); I did find this but don't know what goes in ... or how to set the

问题 I have created a JTable which is populated by various arraylists. The issue I am having is that the data (all of it) is only going into the top row. Am I supposed to call some sort of row delimiter or something? The code is below: import java.awt.*; import javax.swing.*; import java.io.*; import javax.swing.border.EmptyBorder; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.util.ArrayList; public class AllDataGUI extends JFrame{ private JButton

问题 Hi how can I copy data from my JTable into an ArrayList? I dont want the first row which is the columns name, I want everyother row. Thanks 回答1: If you are storing the data in the table with out using any object then just traverse row by row on the table and get every object and store it in the List. Example: This is when you are using a list to store the data. List<Object> list = new ArrayList<Object>; for(int row = 0; row < table.getRowCount(); row++) { for(int column = 0; column = table

问题 I am attempting to create a Tetris GUI. My friend wrote the backend. Up until now, we just had the tetris board (or grid as I refer to it in my code) print to the console window. In the code below I am setting up a JTable to act as the board for the Tetris game. I was wondering how I could get my JTable to render each grid element based on the grid passed from the Tetris 'game' declared in the top of the Window class. This grid is a 2D array of integer value which refer to colors enumerated

问题 I need to fill a JTable with a static 2D array. I've created this model for the JTable : public class InsertMatToJTable extends AbstractTableModel{ String titre[] = {"age real", "sex real", "chest real", "resting_blood_pressure real","serum_cholestoral real","fasting_blood_sugar real","resting_electrocardiographic_results real","maximum_heart_rate_achieved real","exercise_induced_angina real","oldpeak real","slope real","number_of_major_vessels real","thal real", "class"}; String line; float

问题 I have the following method: private void passStingR(StringBuilder retVal) throws BadLocationException { int scrollPositionR = scrollR.getVerticalScrollBar().getValue();//get value of scroll position stores in javas memory windowR.remove(scrollR); tableR.getModel(); modelR.setRowCount(0); Document docR = null; try { docR = loadXMLFromString(retVal.toString());//pull in the XML data into a new doc } catch (Exception ex) { Logger.getLogger(remit.class.getName()).log(Level.SEVERE, null, ex); }

问题 I tried to group JTable header and for that I want to get the DefaultTableModel of current JTable. But when I tried to retrieve the table model like this: DefaultTableModel dm=(DefaultTableModel) tblTet.getModel(); It shows the following exception: org.jdesktop.swingbinding.JTableBinding$BindingTableModel cannot be cast to javax.swing.table.DefaultTableModel Because I am using JTableBeansBinding. Does anyone know how to solve this problem (for retrieving DefaultTableModel)? 回答1: According to

问题 i write this code for showing strings in a table. but it doesnt shown and has no effect. what is problrem? public pamnel() { initComponents(); String[] columnNames = {"First Name", "Last Name", "Sport", "# of Years", "Vegetarian"}; Object[][] data = { {"Kathy", "Smith", "Snowboarding", new Integer(5), new Boolean(false)}, {"John", "Doe", "Rowing", new Integer(3), new Boolean(true)}, {"Sue", "Black", "Knitting", new Integer(2), new Boolean(false)}, {"Jane", "White", "Speed reading", new

问题 Basically I have a JTable , and this JTabel will have a product in one cell, and then in the cell directly below it the cost. The product name should be aligned to the left. The product cost should be aligned to the right. I don't actually care what the alignment of other cells in each row is. So I need to set the alignment of either individual cells, or individual rows. I've found ways to set the alignment of the table, and ways to set the alignment of the columns, but never the rows