TOPIC REVERSE POLISH (HP) STYLE CALCULATOR - PART 2

import java.awt.EventQueue; import javax.swing.JFrame; import javax.swing.JLabel; import java.awt.Font; import javax.swing.JTextField; import javax.swing.SwingConstants; import java.awt.Color; import java.awt.PopupMenu; import javax.swing.JButton; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; public class RPN { private JFrame frameMain; // Main frame private JTextField txtEntry; // Entry textbox private JTextField txtResult; // Result display private JTextField txtError; // Error display private JTextField txtStack0; private JTextField txtStack1; private JTextField txtStack3; private JTextField txtStack2; private JTextField txtStack7; private JTextField txtStack6; private JTextField txtStack5; private JTextField txtStack4; private JTextField txtStack9; private JTextField txtStack8; public static void main(String[] args) { // Create the event queue EventQueue.invokeLater(new Runnable() { public void run() { try { RPN window = new RPN(); // Show the main frame window.frameMain.setVisible(true); } catch (Exception e) { // Exception handler for the frame e.printStackTrace(); } } }); } private PopupMenu btnPop; public RPN() { initialize(); } private void initialize() { // Create the RPN stack that will hold at most 4 elements final ForthStack rpnStack = new ForthStack(); rpnStack.ArrayClass(10); frameMain = new JFrame(); frameMain.setTitle("RPN Calculator"); frameMain.setBounds(100, 100, 799, 499); frameMain.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frameMain.getContentPane().setLayout(null); // Entry textbox label JLabel lblEntry = new JLabel("ENTRY:"); lblEntry.setFont(new Font("Tahoma", Font.BOLD, 24)); lblEntry.setBounds(15, 16, 107, 44); frameMain.getContentPane().add(lblEntry); // Entry textbox field txtEntry = new JTextField(); txtEntry.setBackground(Color.WHITE); txtEntry.setForeground(Color.BLACK); txtEntry.setHorizontalAlignment(SwingConstants.TRAILING); txtEntry.setFont(new Font("Lucida Console", Font.BOLD, 28)); txtEntry.setBounds(137, 13, 500, 47); frameMain.getContentPane().add(txtEntry); txtEntry.setColumns(10); // Result display label JLabel lblResult = new JLabel("RESULT:"); lblResult.setFont(new Font("Tahoma", Font.BOLD, 24)); lblResult.setBounds(15, 79, 107, 44); frameMain.getContentPane().add(lblResult); // Result display field txtResult = new JTextField(); txtResult.setBackground(Color.BLACK); txtResult.setForeground(Color.GREEN); // Make uneditable txtResult.setEditable(false); txtResult.setFont(new Font("Lucida Console", Font.BOLD, 28)); txtResult.setHorizontalAlignment(SwingConstants.TRAILING); txtResult.setBounds(137, 79, 500, 47); frameMain.getContentPane().add(txtResult); txtResult.setColumns(10); // Error display label JLabel lblError = new JLabel("ERROR:"); lblError.setFont(new Font("Tahoma", Font.BOLD, 24)); lblError.setBounds(15, 141, 107, 47); frameMain.getContentPane().add(lblError); // Error display field txtError = new JTextField(); txtError.setHorizontalAlignment(SwingConstants.TRAILING); txtError.setForeground(Color.GREEN); txtError.setFont(new Font("Lucida Console", Font.BOLD, 28)); // Make uneditable txtError.setEditable(false); txtError.setColumns(10); txtError.setBackground(Color.BLACK); txtError.setBounds(137, 137, 500, 47); frameMain.getContentPane().add(txtError); // CLR button. Calls the clear method when pressed. JButton btnClear = new JButton("CLR"); btnClear.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent arg0) { // Clear the stack and the displays rpnStack.clear(); txtError.setText(null); txtResult.setText(null); } }); btnClear.setFont(new Font("Tahoma", Font.BOLD, 24)); btnClear.setBounds(15, 390, 622, 47); frameMain.getContentPane().add(btnClear); // DUP button. Calls the dup method when pressed. JButton btnDup = new JButton("DUP"); btnDup.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { // Perform the dupe rpnStack.dup(); // Get the result double peekedValue = rpnStack.peek(); // Show the result txtResult.setText(String.valueOf(peekedValue)); } catch (RuntimeException re) { txtError.setText(re.getMessage()); } } }); btnDup.setFont(new Font("Tahoma", Font.BOLD, 24)); btnDup.setBounds(15, 327, 300, 47); frameMain.getContentPane().add(btnDup); // 2DUP button. Calls the twoDup method when pressed. JButton btn2Dup = new JButton("2DUP"); btn2Dup.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { // Perform the dupe rpnStack.twoDup(); // Get the result double peekedValue = rpnStack.peek(); // Show the result txtResult.setText(String.valueOf(peekedValue)); } catch (RuntimeException re) { txtError.setText(re.getMessage()); } } }); btn2Dup.setFont(new Font("Tahoma", Font.BOLD, 24)); btn2Dup.setBounds(337, 327, 300, 47); frameMain.getContentPane().add(btn2Dup); // + button. Calls the add method when pressed. JButton btnAdd = new JButton("+"); btnAdd.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { // Perform the add rpnStack.add(); // Get the result double peekedValue = rpnStack.peek(); // Show the result txtResult.setText(String.valueOf(peekedValue)); } catch (RuntimeException re) { txtError.setText(re.getMessage()); } } }); btnAdd.setFont(new Font("Tahoma", Font.BOLD, 24)); btnAdd.setBounds(15, 204, 135, 44); frameMain.getContentPane().add(btnAdd); // PUSH button. Calls the push method when pressed. JButton btnPush = new JButton("PUSH"); btnPush.addActionListener((ActionEvent arg0) -> { // Get the value in the entry box String entryValue = txtEntry.getText(); { // Convert the value to a double double value = Double.parseDouble(entryValue); // Push the value to the stack rpnStack.push(value); // Clear the error box and the entry box txtError.setText(null); txtEntry.setText(null); // Set the display to the top of the stack double peekedValue = rpnStack.peek(); txtResult.setText(String.valueOf(peekedValue)); // for(int i=0; i < rpnStack.length; i++) { //ltxtStack0[i+1] = stack[i]; //} //catch (NumberFormatException nfe) { txtError.setText("INVALID ENTRY!"); } //catch (RuntimeException re) { //JTextField setText = txtError.setText( re.getMessage() ); } } btnPush.setFont(new Font("Tahoma", Font.BOLD, 24)); btnPush.setBounds(15, 264, 300, 47); frameMain.getContentPane().add(btnPush); // POP button. Calls the pop method when pressed. JButton btnPop1 = new JButton("POP"); btnPop1.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates. } { try { // Pop the stack rpnStack.pop(); // Clear the error box txtError.setText(null); // Set the display to the top of the stack double peekedValue = rpnStack.peek(); txtResult.setText(String.valueOf(peekedValue)); } catch (RuntimeException re) { // Clear the displays txtError.setText(null); txtResult.setText(null); } } }); btnPop1.setFont(new Font("Tahoma", Font.BOLD, 24)); //btnPop.setBounds(337, 264, 300, 47); frameMain.getContentPane().add(btnPop1); // - button. Calls the sub method when pressed. JButton btnSub = new JButton("-"); btnSub.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { // Perform the subtraction rpnStack.sub(); // Get the result double peekedValue = rpnStack.peek(); // Show the result txtResult.setText(String.valueOf(peekedValue)); } catch (RuntimeException re) { txtError.setText(re.getMessage()); } } }); btnSub.setFont(new Font("Tahoma", Font.BOLD, 24)); btnSub.setBounds(180, 204, 135, 44); frameMain.getContentPane().add(btnSub); // * button. Calls the mult method when pressed. JButton btnMult = new JButton("*"); btnMult.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { // Perform the multiplication rpnStack.mult(); // Get the result double peekedValue = rpnStack.peek(); // Show the result txtResult.setText(String.valueOf(peekedValue)); } catch (RuntimeException re) { txtError.setText(re.getMessage()); } } }); btnMult.setFont(new Font("Tahoma", Font.BOLD, 24)); btnMult.setBounds(337, 204, 135, 44); frameMain.getContentPane().add(btnMult); // - button. Calls the div method when pressed. JButton btnDiv = new JButton("/"); btnDiv.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { // Perform the division rpnStack.div(); // Get the result double peekedValue = rpnStack.peek(); // Show the result txtResult.setText(String.valueOf(peekedValue)); } catch (RuntimeException re) { txtError.setText(re.getMessage()); } } }); btnDiv.setFont(new Font("Tahoma", Font.BOLD, 24)); btnDiv.setBounds(502, 205, 135, 44); frameMain.getContentPane().add(btnDiv); JLabel lblTheStack = new JLabel("The Stack"); lblTheStack.setFont(new Font("Tahoma", Font.BOLD, 14)); lblTheStack.setBounds(683, 79, 73, 14); frameMain.getContentPane().add(lblTheStack); txtStack0 = new JTextField(); txtStack0.setEditable(false); txtStack0.setBounds(683, 102, 63, 20); frameMain.getContentPane().add(txtStack0); txtStack0.setColumns(10); //txtStack0.setText(""+ stack0 +""); txtStack1 = new JTextField(); txtStack1.setEditable(false); txtStack1.setColumns(10); txtStack1.setBounds(683, 128, 63, 20); frameMain.getContentPane().add(txtStack1); txtStack3 = new JTextField(); txtStack3.setEditable(false); txtStack3.setColumns(10); txtStack3.setBounds(683, 180, 63, 20); frameMain.getContentPane().add(txtStack3); txtStack2 = new JTextField(); txtStack2.setEditable(false); txtStack2.setColumns(10); txtStack2.setBounds(683, 154, 63, 20); frameMain.getContentPane().add(txtStack2); txtStack7 = new JTextField(); txtStack7.setEditable(false); txtStack7.setColumns(10); txtStack7.setBounds(683, 286, 63, 20); frameMain.getContentPane().add(txtStack7); txtStack6 = new JTextField(); txtStack6.setEditable(false); txtStack6.setColumns(10); txtStack6.setBounds(683, 260, 63, 20); frameMain.getContentPane().add(txtStack6); txtStack5 = new JTextField(); txtStack5.setEditable(false); txtStack5.setColumns(10); txtStack5.setBounds(683, 234, 63, 20); frameMain.getContentPane().add(txtStack5); txtStack4 = new JTextField(); txtStack4.setEditable(false); txtStack4.setColumns(10); txtStack4.setBounds(683, 208, 63, 20); frameMain.getContentPane().add(txtStack4); txtStack9 = new JTextField(); txtStack9.setEditable(false); txtStack9.setColumns(10); txtStack9.setBounds(683, 340, 63, 20); frameMain.getContentPane().add(txtStack9); txtStack8 = new JTextField(); txtStack8.setEditable(false); txtStack8.setColumns(10); txtStack8.setBounds(683, 314, 63, 20); frameMain.getContentPane().add(txtStack8); }} } //public void (){ //<editor-fold defaultstate="collapsed" desc="comment">