// DisplayFrame -- for Lab 10 (Hashtable) package lab10; import java.awt.Point; /** * * @author J.K. Daugherty */ public class DisplayFrame extends javax.swing.JFrame { private Hashtable table; private DisplayPanel display; /** Creates new form DisplayFrame */ public DisplayFrame() { initComponents(); table = new Hashtable(); int xloc = 50; int yloc = getSize().height / 2 - 50; Point startPoint = new Point (xloc, yloc); display = new DisplayPanel(table, startPoint); getContentPane().add (display, java.awt.BorderLayout.CENTER); } /** This method is called from within the constructor to * initialize the form. * WARNING: Do NOT modify this code. The content of this method is * always regenerated by the Form Editor. */ private void initComponents() {//GEN-BEGIN:initComponents java.awt.GridBagConstraints gridBagConstraints; controlPanel = new javax.swing.JPanel(); lblPutKey = new javax.swing.JLabel(); fldPutKey = new javax.swing.JTextField(); lblPutValue = new javax.swing.JLabel(); fldPutValue = new javax.swing.JTextField(); btnPut = new javax.swing.JButton(); lblBumpedValue = new javax.swing.JLabel(); fldBumpedValue = new javax.swing.JTextField(); lblKey = new javax.swing.JLabel(); fldKey = new javax.swing.JTextField(); lblValue = new javax.swing.JLabel(); fldValue = new javax.swing.JTextField(); btnSearch = new javax.swing.JButton(); btnRemove = new javax.swing.JButton(); btnReset = new javax.swing.JButton(); btnExit = new javax.swing.JButton(); statusPanel = new javax.swing.JPanel(); lblItemCount = new javax.swing.JLabel(); fldItemCount = new javax.swing.JTextField(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); setTitle("Lab 10: Hashtable"); controlPanel.setLayout(new java.awt.GridBagLayout()); controlPanel.setBackground(new java.awt.Color(255, 255, 255)); lblPutKey.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT); lblPutKey.setText("Key:"); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 0; gridBagConstraints.gridy = 0; gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST; gridBagConstraints.insets = new java.awt.Insets(3, 0, 3, 3); controlPanel.add(lblPutKey, gridBagConstraints); fldPutKey.setColumns(5); fldPutKey.setPreferredSize(new java.awt.Dimension(66, 25)); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 1; gridBagConstraints.gridy = 0; gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST; gridBagConstraints.insets = new java.awt.Insets(3, 3, 3, 3); controlPanel.add(fldPutKey, gridBagConstraints); lblPutValue.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT); lblPutValue.setText("Value:"); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 2; gridBagConstraints.gridy = 0; gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST; gridBagConstraints.insets = new java.awt.Insets(0, 3, 0, 3); controlPanel.add(lblPutValue, gridBagConstraints); fldPutValue.setColumns(8); fldPutValue.setPreferredSize(new java.awt.Dimension(99, 25)); fldPutValue.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { fldPutValueActionPerformed(evt); } }); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 3; gridBagConstraints.gridy = 0; gridBagConstraints.gridwidth = 2; gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST; gridBagConstraints.insets = new java.awt.Insets(3, 3, 3, 3); controlPanel.add(fldPutValue, gridBagConstraints); btnPut.setText("Put"); btnPut.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnPutActionPerformed(evt); } }); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 6; gridBagConstraints.gridy = 0; gridBagConstraints.insets = new java.awt.Insets(3, 3, 3, 3); controlPanel.add(btnPut, gridBagConstraints); lblBumpedValue.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT); lblBumpedValue.setText("Bumped value:"); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 7; gridBagConstraints.gridy = 0; gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST; gridBagConstraints.insets = new java.awt.Insets(3, 3, 3, 3); controlPanel.add(lblBumpedValue, gridBagConstraints); fldBumpedValue.setColumns(8); fldBumpedValue.setEditable(false); fldBumpedValue.setPreferredSize(new java.awt.Dimension(99, 25)); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 8; gridBagConstraints.gridy = 0; gridBagConstraints.gridwidth = 2; gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST; gridBagConstraints.insets = new java.awt.Insets(3, 3, 3, 0); controlPanel.add(fldBumpedValue, gridBagConstraints); lblKey.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT); lblKey.setText("Key:"); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 0; gridBagConstraints.gridy = 1; gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST; gridBagConstraints.insets = new java.awt.Insets(0, 0, 3, 3); controlPanel.add(lblKey, gridBagConstraints); fldKey.setColumns(5); fldKey.setPreferredSize(new java.awt.Dimension(66, 25)); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 1; gridBagConstraints.gridy = 1; gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST; gridBagConstraints.insets = new java.awt.Insets(0, 3, 3, 3); controlPanel.add(fldKey, gridBagConstraints); lblValue.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT); lblValue.setText("Value:"); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 4; gridBagConstraints.gridy = 1; gridBagConstraints.anchor = java.awt.GridBagConstraints.EAST; gridBagConstraints.insets = new java.awt.Insets(0, 3, 3, 3); controlPanel.add(lblValue, gridBagConstraints); fldValue.setColumns(8); fldValue.setEditable(false); fldValue.setPreferredSize(new java.awt.Dimension(99, 25)); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 5; gridBagConstraints.gridy = 1; gridBagConstraints.gridwidth = 2; gridBagConstraints.anchor = java.awt.GridBagConstraints.WEST; gridBagConstraints.insets = new java.awt.Insets(0, 3, 3, 0); controlPanel.add(fldValue, gridBagConstraints); btnSearch.setText("Search"); btnSearch.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnSearchActionPerformed(evt); } }); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 2; gridBagConstraints.gridy = 1; gridBagConstraints.insets = new java.awt.Insets(0, 3, 3, 3); controlPanel.add(btnSearch, gridBagConstraints); btnRemove.setText("Remove"); btnRemove.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnRemoveActionPerformed(evt); } }); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 3; gridBagConstraints.gridy = 1; gridBagConstraints.insets = new java.awt.Insets(0, 3, 3, 3); controlPanel.add(btnRemove, gridBagConstraints); btnReset.setText("Reset"); btnReset.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnResetActionPerformed(evt); } }); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 7; gridBagConstraints.gridy = 1; controlPanel.add(btnReset, gridBagConstraints); btnExit.setText("Exit"); btnExit.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { btnExitActionPerformed(evt); } }); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 8; gridBagConstraints.gridy = 1; controlPanel.add(btnExit, gridBagConstraints); getContentPane().add(controlPanel, java.awt.BorderLayout.SOUTH); statusPanel.setBackground(new java.awt.Color(255, 255, 255)); lblItemCount.setText("Current table size:"); statusPanel.add(lblItemCount); fldItemCount.setColumns(2); fldItemCount.setEditable(false); fldItemCount.setHorizontalAlignment(javax.swing.JTextField.RIGHT); fldItemCount.setText("0"); statusPanel.add(fldItemCount); getContentPane().add(statusPanel, java.awt.BorderLayout.NORTH); java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize(); setBounds((screenSize.width-800)/2, (screenSize.height-700)/2, 800, 700); }//GEN-END:initComponents private void fldPutValueActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_fldPutValueActionPerformed put(); }//GEN-LAST:event_fldPutValueActionPerformed private void btnExitActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnExitActionPerformed setVisible(false); dispose(); System.exit(0); }//GEN-LAST:event_btnExitActionPerformed private void btnResetActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnResetActionPerformed table.clear (); display.repaint(); fldPutKey.setText(""); fldPutValue.setText(""); fldBumpedValue.setText(""); fldKey.setText(""); fldValue.setText(""); fldItemCount.setText("" + table.size()); }//GEN-LAST:event_btnResetActionPerformed private void btnRemoveActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnRemoveActionPerformed String response = "NOT FOUND"; Object value = table.remove (fldKey.getText()); if (value != null) { response = value.toString(); fldItemCount.setText("" + table.size()); } fldValue.setText (response); display.repaint(); }//GEN-LAST:event_btnRemoveActionPerformed private void btnSearchActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnSearchActionPerformed String response = "NOT FOUND"; Object value = table.get (fldKey.getText()); if (value != null) { response = value.toString(); } fldValue.setText (response); display.repaint(); }//GEN-LAST:event_btnSearchActionPerformed private void btnPutActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnPutActionPerformed put(); }//GEN-LAST:event_btnPutActionPerformed private void put () { Object bumped = table.put (fldPutKey.getText(), fldPutValue.getText()); if (bumped == null) { fldBumpedValue.setText(""); } else { fldBumpedValue.setText ("" + bumped); } display.repaint(); fldItemCount.setText("" + table.size()); } /** * @param args the command line arguments */ public static void main(String args[]) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new DisplayFrame().setVisible(true); } }); } // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JButton btnExit; private javax.swing.JButton btnPut; private javax.swing.JButton btnRemove; private javax.swing.JButton btnReset; private javax.swing.JButton btnSearch; private javax.swing.JPanel controlPanel; private javax.swing.JTextField fldBumpedValue; private javax.swing.JTextField fldItemCount; private javax.swing.JTextField fldKey; private javax.swing.JTextField fldPutKey; private javax.swing.JTextField fldPutValue; private javax.swing.JTextField fldValue; private javax.swing.JLabel lblBumpedValue; private javax.swing.JLabel lblItemCount; private javax.swing.JLabel lblKey; private javax.swing.JLabel lblPutKey; private javax.swing.JLabel lblPutValue; private javax.swing.JLabel lblValue; private javax.swing.JPanel statusPanel; // End of variables declaration//GEN-END:variables }