How can I get height of JTable?

Now that that’s out of the way here’s how to do it:

1. Get the height of the rows – table.getRowHeight() * numOfRows.
2. Get the intercell spacing – table.getIntercellSpacing().height * (numRows +1)
3. Get the height of the table header – table.getTableHeader().getPreferredSize().height.

How do you increase the size of a table in Java?

By default the width of a JTable is fixed, we can also change the width of each column by using table. getColumnModel(). getColumn(). setPreferredWidth() method of JTable class.

How do I make a JTable not editable?

You can use a TableModel . Then use the setModel() method of your JTable . You can’t have a public void method return a boolean….

1. This is the best and easiest answer.
2. This works great with single selection.
3. This should be the ANSWER!

What is the purpose of JTable *?

The JTable is used to display and edit regular two-dimensional tables of cells.

How is JTable created?

JTable(): A table is created with empty cells. JTable(int rows, int cols): Creates a table of size rows * cols. JTable(Object[][] data, Object []Column): A table is created with the specified name where []Column defines the column names.

What methods does JTable implement?

The JTable simply takes a tabular range of cells and uses getValueAt(int, int) to retrieve the values from the model during painting.

Is JTable default editable?

The isCellEditable() method of JTable (or the TableModel) controls whether a cell is editable or not. By default it just return “true”. So you can override the method to return a boolean value that is set by your “Modify” button.

What is JTable in swing?

The JTable class is a part of Java Swing Package and is generally used to display or edit two-dimensional data that is having both rows and columns. It is similar to a spreadsheet. This arranges data in a tabular form. Constructors in JTable: JTable(): A table is created with empty cells.

How many components can a Jpanel have?

The idea is to have five panels, one for each pair of label and text field, and a panel each for the heading and the do it button.

What is the use of JTable?

The JTable is used to display and edit regular two-dimensional tables of cells. See How to Use Tables in The Java Tutorial for task-oriented documentation and examples of using JTable .

What is InitializeComponent ()?

The InitializeComponent method contains the code that creates and initializes the user interface objects dragged on the form surface with the values provided by you (the programmer) using the Property Grid of the Form Designer.

Can JPanel add another JPanel?

We can add most of the components like buttons, text fields, labels, tables, lists, trees, etc. to a JPanel. We can also add multiple sub-panels to the main panel using the add() method of Container class.

How do you organize a JPanel?

First place the GUI components into a JPanel. Then place the finished JPanel at a coordinate….Programming Trick:

1. Create one top-level JPanel.
2. Then create/use as many JPanel objects as you need to organize your components.
3. Stick (add) all the “organizational” JPanels onto the top-level JPanel.

How do I change the InitComponent code in NetBeans?

If you right-click on the component in the Design View , and then click on ” Customize Code ” selection, you can modify the code in the InitComponent code.

Where is InitializeComponent?

Simply position the cursor in InitializeComponent method call and press F12 in VS.NET and Form . designer file will open to show the implementation of the InitializeComponent method.

How to set the height of a row in JTable?

1. Setting row height for JTable: This can be done easily using these two methods of the JTable class: setRowHeight(int row, int rowHeight): sets the height (in pixels) for an individual row. setRowHeight(int rowHeight): sets the height (in pixels) for all rows in the table and discards heights of all rows were set individually before.

How to set preferred size of jviewport table header?

JTableHeader th = table.getTableHeader (); th.setPreferredSize (new Dimension (100, 100)); Instead of overriding JViewport.getPreferredSize like in aterai answer you can just set preferred width.

How to set the preferred size of header in table header?

You can also use a very large width when setting the preferred header dimension, which swing truncate as per the required widths in the column model. tableHeader.setPreferredSize (new Dimension (10000, HEADER_HEIGHT));

How to set the column header width in the jscrollpane?

JScrollPane ignores column header width, so you can safely set zero here. You can also use a very large width when setting the preferred header dimension, which swing truncate as per the required widths in the column model.