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copied!<p>In JTable, you have the</p> <pre><code>JTable.getSelectedRow() </code></pre> <p>and</p> <pre><code>JTable.getSelectedColumn() </code></pre> <p>You can try combine this two method with a MouseListener and a KeyListener. With the KeyListener you check if user is pressing the CTRL key, which means that user is selecting cells, then with a mouse listener, for every click you store maybe in a Vector or ArrayList the selected cells:</p> <pre><code>//global variables JTable theTable = new JTable();//your table boolean pressingCTRL=false;//flag, if pressing CTRL it is true, otherwise it is false. Vector selectedCells = new Vector<int[]>();//int[]because every entry will store {cellX,cellY} public void something(){ KeyListener tableKeyListener = new KeyAdapter() { @Override public void keyPressed(KeyEvent e) { if(e.getKeyCode()==KeyEvent.VK_CTRL){//check if user is pressing CTRL key pressingCTRL=true; } } @Override public void keyReleased(KeyEvent e) { if(e.getKeyCode()==KeyEvent.VK_CTRL){//check if user released CTRL key pressingCTRL=false; } } }; MouseListener tableMouseListener = new MouseAdapter() { @Override public void mouseClicked(MouseEvent e) { if(pressingCTRL){//check if user is pressing CTRL key int row = theTable.rowAtPoint(e.getPoint());//get mouse-selected row int col = theTable.columnAtPoint(e.getPoint());//get mouse-selected col int[] newEntry = new int[]{row,col};//{row,col}=selected cell if(selectedCells.contains(newEntry)){ //cell was already selected, deselect it selectedCells.remove(newEntry); }else{ //cell was not selected selectedCells.add(newEntry); } } } }; theTable.addKeyListener(tableKeyListener); theTable.addMouseListener(tableMouseListener); } </code></pre>

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