package javaCal; import java.awt.EventQueue; import javax.swing.JFrame; import javax.swing.JPanel; import java.awt.BorderLayout; import java.awt.FlowLayout; import java.awt.CardLayout; import java.awt.Color; import javax.swing.UIManager; import javax.swing.JTextField; import java.awt.ComponentOrientation; import javax.swing.JButton; import java.awt.event.ActionListener; import java.awt.event.ActionEvent; import javax.swing.border.LineBorder; import java.awt.Font; public class Calc { private JFrame frame; private JTextField display; String aim; double fn, sn; double result; String temp; /** * Launch the application. */ public static void main(String[] args) { EventQueue.invokeLater(new Runnable() { public void run() { try { Calc window = new Calc(); window.frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } }); } /** * Create the application. */ public Calc() { initialize(); } /** * Initialize the contents of the frame. */ private void initialize() { frame = new JFrame(); frame.getContentPane().setBackground(new Color(192, 192, 192)); frame.setBackground(new Color(128, 128, 128)); frame.setResizable(false); frame.setBounds(100, 100, 411, 500); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.getContentPane().setLayout(null); JPanel panel = new JPanel(); panel.setBorder(new LineBorder(new Color(0, 0, 0))); panel.setBackground(new Color(175, 238, 238)); panel.setBounds(31, 21, 349, 425); frame.getContentPane().add(panel); panel.setLayout(null); display = new JTextField(); display.setFont(new Font("Tahoma", Font.BOLD, 16)); display.setBorder(new LineBorder(new Color(255, 0, 0), 2)); display.setBounds(0, 0, 349, 104); panel.add(display); display.setColumns(10); JButton seven = new JButton("7"); seven.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if(display.getText()!= null){ display.setText(display.getText().toString() + "7"); } else { display.setText("7"); } } } ); seven.setBackground(new Color(255, 215, 0)); seven.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { } }); seven.setBounds(0, 178, 91, 23); panel.add(seven); JButton eight = new JButton("8"); eight.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if(display.getText()!= null){ display.setText(display.getText().toString() + "8"); } else { display.setText("8"); } } } ); eight.setBackground(new Color(255, 215, 0)); eight.setBounds(98, 178, 91, 23); panel.add(eight); JButton nine = new JButton("9"); nine.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if(display.getText()!= null){ display.setText(display.getText().toString() + "9"); } else { display.setText("9"); } } } ); nine.setBackground(new Color(255, 215, 0)); nine.setBounds(199, 178, 91, 23); panel.add(nine); JButton four = new JButton("4"); four.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if(display.getText()!= null){ display.setText(display.getText().toString() + "4"); } else { display.setText("4"); } } } ); four.setBackground(new Color(255, 215, 0)); four.setBounds(0, 226, 91, 23); panel.add(four); JButton five = new JButton("5"); five.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if(display.getText()!= null){ display.setText(display.getText().toString() + "5"); } else { display.setText("5"); } } } ); five.setBackground(new Color(255, 215, 0)); five.setBounds(98, 226, 91, 23); panel.add(five); JButton six = new JButton("6"); six.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if(display.getText()!= null){ display.setText(display.getText().toString() + "6"); } else { display.setText("6"); } } } ); six.setBackground(new Color(255, 215, 0)); six.setBounds(199, 226, 91, 23); panel.add(six); JButton one = new JButton("1"); one.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if(display.getText()!= null){ display.setText(display.getText().toString() + "1"); } else { display.setText("1"); } } } ); one.setBackground(new Color(255, 215, 0)); one.setBounds(0, 280, 91, 23); panel.add(one); JButton two = new JButton("2"); two.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if(display.getText()!= null){ display.setText(display.getText().toString() + "2"); } else { display.setText("2"); } } } ); two.setBackground(new Color(255, 215, 0)); two.setBounds(98, 280, 91, 23); panel.add(two); JButton three = new JButton("3"); three.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if(display.getText()!= null){ display.setText(display.getText().toString() + "3"); } else { display.setText("3"); } } } ); three.setBackground(new Color(255, 215, 0)); three.setBounds(199, 280, 91, 23); panel.add(three); JButton clr = new JButton("C"); clr.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if(display.getText()!= null){ display.setText(" "); sn=0; fn=0; result = 0; } } } ); clr.setBackground(new Color(255, 215, 0)); clr.setBounds(10, 123, 290, 33); panel.add(clr); JButton plus = new JButton("+"); plus.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { fn = Double.parseDouble(display.getText()); display.setText(" "); aim = "addition"; } }); plus.setBackground(new Color(0, 153, 102)); plus.setBounds(0, 359, 134, 23); panel.add(plus); JButton divide = new JButton("/"); divide.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { fn = Double.parseDouble(display.getText()); display.setText(" "); aim="division"; } }); divide.setBackground(new Color(0, 153, 102)); divide.setBounds(0, 391, 134, 23); panel.add(divide); JButton minus = new JButton("-"); minus.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { fn = Double.parseDouble(display.getText()); display.setText(" "); aim="substraction"; } }); minus.setBackground(new Color(0, 153, 102)); minus.setBounds(151, 359, 128, 23); panel.add(minus); JButton multiply = new JButton("*"); multiply.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { fn = Double.parseDouble(display.getText()); display.setText(" "); aim="multiplication"; } }); multiply.setBackground(new Color(0, 153, 102)); multiply.setBounds(151, 391, 128, 23); panel.add(multiply); JButton equals = new JButton("="); equals.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent arg0) { sn = Double.parseDouble(display.getText()); if(aim.equals("addition")) { result = fn + sn; temp = Double.toString(result); display.setText(temp); } else if(aim.equals("substraction")) { sn = Double.parseDouble(display.getText()); result = fn-sn; temp = Double.toString(result); display.setText(temp); } else if(aim.equals("multiplication")) { sn = Double.parseDouble(display.getText()); result = fn*sn; temp = Double.toString(result); display.setText(temp); } else if (aim.equals("division")){ sn = Double.parseDouble(display.getText()); result = fn/sn; temp = Double.toString(result); display.setText(temp); } } }); equals.setBackground(new Color(0, 153, 102)); equals.setBounds(300, 178, 49, 235); panel.add(equals); JButton zero = new JButton("0"); zero.setBackground(new Color(255, 215, 0)); zero.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if(display.getText()!=null){ display.setText(display.getText().toString() + "0"); } else { display.setText("0"); } } } ); zero.setBounds(98, 325, 91, 23); panel.add(zero); JButton decimal = new JButton("."); decimal.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { if(display.getText()!=null){ display.setText(display.getText().toString() + "."); } else { display.setText("."); } } }); decimal.setBackground(Color.ORANGE); decimal.setBounds(199, 325, 91, 23); panel.add(decimal); } }