I am developing a Java application that uses a JTable. I want to allow the user to enter data in a JTable that can later be printed or saved. The issues is: Suppose the user has entered some data and the cursor is on the last cell of the row in a table (I have uploaded an image-suppose the cursor is on the highlighted cell).How do I make it in such a way that when a user presses the Enter Button(Keyboard button) the application will add/append a new row that is empty to the table so that the user can fill in other data.
Attachment
Try this...
JTable table = new JTable();
DefaultTableModel tblModel = new DefautlTableModel(0,0);
table.setModel(tblModel);
//an action or click then you should run this code
tblModel.addRow(new Object[]{""});
DefaultTableModel tbm = (DefaultTableModel) jTable1.getModel();
Vector rowData = null;
tbm.addRow(rowData);
Related
I am using swing and java in Eclipse to send data to JTable from a 2D Array
String [][] row = {{"iphone"},{"34567"}};
I have a 2D array. I am wanting to display it in JTable using eclipse.
The JTable will have to header like "Phone" and "Price" and the Jtable gets filled by the click of a button.
String[] columns = {"Phone","Price"};
Can some please help me to get it displayed in JTable
DefaultTableModel model = new DefaultTableModel(new Object[]{"Column1", "Column2"})
JTable table = new JTable(model);
To add a row:
DefaultTableModel model = (DefaultTableModel)table.getModel();
model.addRow(new Object[]{"iPhone", "73567",});
Placing the above code inside the action performed of the button.
public void actionPerformed(ActionEvent e)
{
DefaultTableModel model = (DefaultTableModel)table.getModel();
model.addRow(new Object[]{"iphone", "73576"});
}
I need to display some content in a tabular form dynamically in Java. The content includes data that is fetched from an API in JSON format. At the end of each row I need to display a checkbox as well. The number of rows is dynamic and the columns are fixed. How do I do this?
The table will have the following columns:
Index
Username
Upload date
Percentage
Matched results
[Checkbox]
Finally found the answer to this problem. We can dynamically create a table using the class DefaultTableModel and the Java swing class JTable.
model = new DefaultTableModel();
Set the columns
model.setColumnIdentifiers(new Object[]{"Index","User","Reg no.","Match"});
jTable1.setModel(model);
jTable1.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS);
jTable1.setFillsViewportHeight(true);
jScrollPane1.setHorizontalScrollBarPolicy(
JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
jScrollPane1.setVerticalScrollBarPolicy(
JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
Add the rows from the JSON response
for(int i=0;i< jsonArr.size();i++)
{
str = jsonArr.get(i).toString();
jsonObj = (JSONObject)parser.parse(str);
String sub = jsonObj.get("subid").toString();
String uname = jsonObj.get("username").toString();
String regno = jsonObj.get("regno").toString();
String percent = jsonObj.get("percent").toString();
model.addRow(new Object[]{sub,uname,regno,percent});
}
I'm currently working on a Java application that reads an Access file and builds a Jtable model using the data that's collected. I've previously done the same with an Excel file but when I tried with Jackcess it was slightly diffrent and I've ran into some questionmarks.
My work so far:
public class AccessModel{
public DefaultTableModel getAccessModel() throws IOException {
Database db = DatabaseBuilder.open(new File("MyFile.accdb"));
Vector<String> columnNames = new Vector<String>();
Vector<String> vector = new Vector<String>();
Vector<Vector<String>> data = new Vector<Vector<String>>();
StringBuilder output = new StringBuilder();
Table table = db.getTable("Table1");
for (Column column : table.getColumns()) { // get the table column names
output.append(column.getName());
output.append("\n");
columnNames.add(column.getName());
}
for (Column column : table.getColumns()) { // get the column rows and values
vector.add(column.getRowValue(table.getNextRow()).toString());
}
data.add(vector);
// return the model to Gui
DefaultTableModel accessModel = new DefaultTableModel(data, columnNames);
return accessModel;
}
}
As you can see this method will only iterate trough the first row, then exit the loop. I'm either blind to an abvious solution due to 12 hours of straight work, or I'm doing something terribly wrong.
I've stumbled across some half-good solutions where an Iterator is used, but I cannot get the hang of it. Any suggestions on this? Or should I stay on lane with my current line of thought?
JTable (value for view is stored in XxxTableModel, in your case is used DefaultTableModel) is row bases Object,
TableColumn (value is stored in TableColumnModel) to divide row(s) to the columns
you would need to create two Objects,
Vector<String> columnNames (is only one row) for columns identifiers from Table table = db.getTable("Table1");
loop inside Table table = db.getTable("Table1"); to fill two dimensional Vector<Vector<Object>> data = new Vector<Vector<Object>>(); by using Vector<Object> vector = new Vector<Object>();, notice 1st. code line insode loop must be vector = new Vector<Object>();, you have to create a new Vector otherwise you'll add the same rown_times, last code line should be data.add(vector)
.
everything (I'm still think so) is described in Oracle tutorial How to use Tables
i want to add or insert column from different methods into one table.. cant explain it clearly but i show my codes to you to understand..for example.
(....)
DefaultTableModel dtm = new DefaultTableModel();
JTable table = new JTable();
Constructor(){
table.setModel(dtm);
(.....)
}
public void methodOne(){
String id = num.getText();
rs = stat.executeQuery("SELECT * FROM payments;");
Vector<String> header = new Vector<String>();
header.add("PAYMENT");
header.add("AMOUNT");
header.add("MODIFIER");
header.add("DATE MODIFIED");
Vector<Vector<Object>> data = new Vector<Vector<Object>>();
while(rs.next()) {
Vector<Object> row = new Vector<Object>();
row.add(rs.getString("description"));
row.add(rs.getString("amount"));
row.add(rs.getString("remarks"));
row.add(rs.getString("date"));
data.add(row);
} // loop
dtm.setDataVector(data , header);
JScrollPane scrollPane = new JScrollPane(table);
scrollPane.setBounds(0,0,490,250);
panel.add(scrollPane);
validate();
}
public void methodTwo(){
(.....)
rs = stat.executeQuery("SELECT * FROM record where idNum ='"+id+"';");
while(rs.next()){
Vector<Object> row = new Vector<Object>();
row.add(rs.getString("description"));
row.add(rs.getString("amount"));
row.add(rs.getString("remarks"));
row.add(rs.getString("date"));
data.add(row);
} // while
}
those value inside row are the value i want to add on my table, i dont have any idea on how to id.. i want it to be like this:
first when you run the java it will autoumatically create a table
http://i1023.photobucket.com/albums/af355/guiacustodio/javaaaaaaaaaaaaaaaaaaaaaaa_zpse9a22225.jpg
i have a button and textfield i enter number on the textfield i.e
[PAY BUTTON] TextField:[__100]
i clicked the button and this is what will happen:
http://i1023.photobucket.com/albums/af355/guiacustodio/javaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa_zps43879eab.jpg
First of all, the data Vector you are using is defined inside methodOne so the same data is not accesible via methodTwo.
Secondly it is not because there is data being added to data in a tablemodel that the table will refresh, you have to call one of the methods that trigger an refresh event in the gui, normally one calls the method fireTableChanged on the tablemodel after you added data.
Thridly: there is an interesting library called GlazedLists that handles a lot of these things automatically !
I am dynamically adding data to a cell with the following code:
for(int i = 0; i < matchedSlots.size(); i++)
{
String title = matchedSlots.get(i).getTitle();
String director = matchedSlots.get(i).getDirector();
int rating = matchedSlots.get(i).getRating();
int runTime = matchedSlots.get(i).getRunningTime();
DefaultTableModel tm = (DefaultTableModel) searchResults.getModel();
tm.addRow(new Object[] {title,director,rating,runTime});
}
what do I need to add to the above to be able to add an image in the first cell of each row
By default JTable can render Images. You just need to override getColumnClass() in the TableModel and return Icon.class for 1st column.
Look at Renderers and Editors for more details.
ImageIcon image = new ImageIcon("image.gif");
...
tm.addRow(new Object[] {image,title,director,rating,runTime});
You may need to change your table model to account for the new column if you haven't already.
This short article should help you with the image renderer: http://mdsaputra.wordpress.com/2011/06/13/swing-hack-show-image-in-jtable/