Jtable java

The JTable has many facilities that make it possible to customize its rendering and editing but provides defaults for these features so that simple tables can be set up easily, jtable java.

CodeGym University. Light theme. Published in the Java Developer group. If you're looking to display data in a tabular format, you should consider using the JTable class in the javax. The JTable class is a versatile tool that allows you to create a table with rows and columns and customize it according to your needs.

Jtable java

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 :. Skip to content. Change Language. Open In App. Related Articles. Solve Coding Problems. Java Swing JTable. Improve Improve. Like Article Like.

This example program presents the familiar table, and allows the user to manipulate certain JTable options, jtable java. For more sophisticated kinds of sorting, subclass TableRowSorter or its parent class javax. This results in the "boundary" or divider between adjacent cells being independently adjustable.

This article shows a simple example of JTable. This is similar to a spreadsheet. Let us consider some examples. Say that you want to display a list of employees belonging to an organization. This should display the various attributes of employees. For example, employee id, name, hourly rate, part-time status etc. The display will be more like a database table display of rows and columns.

The JTable has many facilities that make it possible to customize its rendering and editing but provides defaults for these features so that simple tables can be set up easily. By default, a JTable will adjust its width such that a horizontal scrollbar is unnecessary. Note that if you wish to use a JTable in a standalone view outside of a JScrollPane and want the header displayed, you can get it using getTableHeader and display it separately. To enable sorting and filtering of rows, use a RowSorter. You can set up a row sorter in either of two ways: Directly set the RowSorter. For example: table. For example: setAutoCreateRowSorter true.

Jtable java

This article explains how to write an editable JTable and proceeds to show an example. Understanding the TableModel:. Let us consider an example. We want to display the employee details in a table and also allow the user to edit the values directly in the table. The employee details would include fields like id, name, hourly rate and part-time status. Before we start looking at the code, we need to understand about the model of JTable. Let us try and understand why this is needed and how this helps us. In simple terms, the Model-View-Controller paradigm dictates that the data be held in a Model. And the view should display the data by querying the model.

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Explore offer now. Returns a string representation of this table. As you can see, users can rearrange columns in tables. This is done automatically in initializeLocalVars , but if at a later point JTable is told setToolTipText null it will unregister the table component, and no tips from renderers will display anymore. Parameters: column - the index of column to be moved targetColumn - the new index of the column columnAtPoint public int columnAtPoint Point point Returns the index of the column that point lies in, or -1 if the result is not in the range [0, getColumnCount -1]. The changes are saved and the editor is discarded. The behavior of the returned Printable is undefined once the table has been changed. This should display the various attributes of employees. If editor is null , removes the default editor for this column class. In the screenshot below, a user has run the program, clicked in the first row, then control-clicked in the third row. Takes steps that the majority of developers would take in order to print a JTable. Note that this may be different from the number of columns in the table model. NOTE: When using a sorter, always remember to translate cell coordinates.

We may make money when you click on links to our partners. Learn More. In Java, tables are used to arrange data into columns and rows.

CodeGym University. In these cases the output may be clipped, but the implementation makes an effort to do something reasonable. Sets the background color for selected cells. JFrame f;. The JTable uses integers exclusively to refer to both the rows and the columns of the model that it displays. Returns true if the table draws horizontal lines between cells, false if it doesn't. You can specify selection by cell in multiple interval selection mode, but the result is a table that does not produce useful selections. The next method is the getColumnClass method. Then, after making sure the rendering component is a JComponent , invoke the setToolTipText method on it. If it is not selected, select it. Change Language. Returns the scroll increment in pixels that completely exposes one new row or column depending on the orientation. SortKey 0, SortOrder.