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I have a table where each row represents a picture. In the column Path I store its absolute path. The string being kinda long, I would like that when I hover the mouse over the specific cell, a tooltip should pop-up next to the mouse containing the information from the cell.
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We can add tooltip text to almost all the components of Java Swing by using the following method setToolTipText(String s). This method sets the tooltip of the component to the specified string s. When the cursor enters the boundary of that component a popup appears and text is displayed.
You can select cells by simulating clicks. To simulate clicks on JTable cells, you can use the ClickCell , ClickCellR , DblClickCell and similar actions of the JTable object. All of these actions have parameters that specify the row and the column that contain the needed cell.
jTableAssignments = new javax. swing. JTable() { public boolean isCellEditable(int rowIndex, int colIndex) { return editable; }};
We can add or insert a JButton to JTable cell by customizing the code either in DefaultTableModel or AbstractTableModel and we can also customize the code by implementing TableCellRenderer interface and need to override getTableCellRendererComponent() method.
Just use below code while creation of JTable object.
JTable auditTable = new JTable(){ //Implement table cell tool tips. public String getToolTipText(MouseEvent e) { String tip = null; java.awt.Point p = e.getPoint(); int rowIndex = rowAtPoint(p); int colIndex = columnAtPoint(p); try { tip = getValueAt(rowIndex, colIndex).toString(); } catch (RuntimeException e1) { //catch null pointer exception if mouse is over an empty line } return tip; } }; If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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