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  1. import java.awt.*;
  2. import java.awt.event.*;
  3. import javax.swing.*;
  4. import javax.swing.event.*;
  5.  
  6. class  CurrencyConversion extends JFrame implements ActionListener{
  7.             JTabbedPane tbpane;
  8.             JPanel panelt1;
  9.             JLabel lblus;
  10.             JLabel lblkh;
  11.             JLabel lblcbkh;
  12.             JTextField txtus;
  13.             JTextField txtkh;
  14.             JComboBox cbratekh;
  15.             JButton btuskh;
  16.  
  17.             JPanel panelt2;
  18.             JLabel lbleuro;
  19.             JLabel lbleurous;
  20.             JLabel lblcbus;
  21.             JTextField txteurous;
  22.             JTextField txteuro;
  23.             JComboBox cbrateus;
  24.             JButton bteurous;   
  25.  
  26.  
  27.             CurrencyConversion(){
  28.  
  29.                       setTitle("Currency Conversion Program");
  30.                       setDefaultCloseOperation(EXIT_ON_CLOSE);
  31.                       setSize(300,250);
  32.                      setResizable(false);
  33.                      Container cont=getContentPane();
  34.  
  35.                         //USD to Riel conversion interface
  36.                       lblus=new JLabel("USD:");
  37.                       lblkh=new JLabel("Riel:");
  38.                       lblcbkh=new JLabel("Select exchange rate:");
  39.                       btuskh=new JButton("OK");
  40.                     btuskh.addActionListener(this);               
  41.                     txtus=new JTextField(10);
  42.                     txtus.addKeyListener(new KeyList());
  43.                     txtkh=new JTextField(10);
  44.                     txtkh.addKeyListener(new KeyList());
  45.                     Object[] ratekh={3800,3900,4000,4100,4200};
  46.                     cbratekh=new JComboBox(ratekh);
  47.                     cbratekh.setEditable(true);
  48.                    cbratekh.getEditor().getEditorComponent().addKeyListener(new KeyList());
  49.                     panelt1=new JPanel();
  50.                     panelt1.add(lblcbkh);
  51.                     panelt1.add(cbratekh);
  52.                     panelt1.add(lblus);
  53.                     panelt1.add(txtus);
  54.                     panelt1.add(lblkh);
  55.                     panelt1.add(txtkh);
  56.                     panelt1.add(btuskh);
  57.                     panelt1.setLayout(new GridLayout(4,1));
  58.  
  59.                         //EURO and USD conversion interface
  60.  
  61.                    lbleuro=new JLabel("Euro:");
  62.                    lbleurous=new JLabel("USD:");
  63.                     lblcbus=new JLabel("Select exchange rate:");
  64.                     bteurous=new JButton("OK");
  65.                    bteurous.addActionListener(this);                       
  66.                     txteuro=new JTextField(10);
  67.                     txteuro.addKeyListener(new KeyList());
  68.                     txteurous=new JTextField(10);
  69.                     txteurous.addKeyListener(new KeyList());
  70.                     Object[] rateus={1.25,1.28,1.30,1.32,1.35,1.40};
  71.                     cbrateus=new JComboBox(rateus);
  72.                     cbrateus.setEditable(true);
  73.                   cbrateus.getEditor().getEditorComponent().addKeyListener(new KeyList());
  74.                     panelt2=new JPanel();
  75.                   panelt2.setLayout(new GridLayout(4,1));
  76.                    panelt2.add(lblcbus);
  77.                    panelt2.add(cbrateus);
  78.                    panelt2.add(lbleuro);
  79.                     panelt2.add(txteuro);
  80.                     panelt2.add(lbleurous);
  81.                     panelt2.add(txteurous);
  82.                     panelt2.add(bteurous);
  83.  
  84.                         //Create JTabbedPane object and add panelt1 and panelt2
  85.                    JTabbedPane tbpane=new JTabbedPane();
  86.                    tbpane.add(panelt1, null, 0);
  87.                   tbpane.add(panelt2, null, 1);
  88.                         //Set title to each tab
  89.                     tbpane.setTitleAt(0,"USD and Riel");
  90.                    tbpane.setTitleAt(1,"EURO and USD");
  91.  
  92.                         //Add tbpane JTabbedPane object to the container
  93.                    cont.add(tbpane);
  94.                     setVisible(true);                   
  95.  
  96.  
  97.             }
  98.  
  99. public void actionPerformed(ActionEvent e){
  100.                         double rate;
  101.                         double usdamount;
  102.                         double khamount;
  103.                         double euroamount;
  104.  
  105.                         if(e.getSource()==btuskh){
  106.                                     if(!checkBlank(txtus,txtkh, cbratekh))
  107.                                                 if(txtkh.getText().equals("")){ //USD to Riel conversion
  108.                                                             rate=Double.parseDouble(cbratekh.getSelectedItem().toString());
  109.                                                             usdamount=Double.parseDouble(txtus.getText());
  110.                                                             khamount=usdToKH(rate,usdamount);
  111.                                                             txtkh.setText(""+khamount);
  112.                                                             }
  113.  
  114.                                                 else if(txtus.getText().equals("")) { //Riel to USD conversion
  115.                                                 rate=Double.parseDouble(cbratekh.getSelectedItem().toString());
  116.                                                 khamount=Double.parseDouble(txtkh.getText());
  117.                                                 usdamount=khToUSD(rate,khamount);
  118.                                                 txtus.setText(""+usdamount);
  119.                                                 }
  120.                                                 else{
  121.                                                 showMessage("Please leave the result text box blank");
  122.                                     }
  123.  
  124.                         }
  125.                         else if(e.getSource()==bteurous){
  126.                                     if(!checkBlank(txteurous,txteuro, cbrateus))
  127.                                                 if(txteurous.getText().equals("")){ //Euro to USD conversion
  128.                                                             rate=Double.parseDouble(cbrateus.getSelectedItem().toString());
  129.                                                             euroamount=Double.parseDouble(txteuro.getText());
  130.                                                             usdamount=euroToUSD(rate,euroamount);
  131.                                                             txteurous.setText(""+usdamount);
  132.                                                 }
  133.  
  134.                                                 else if(txteuro.getText().equals("")) { // USD to EURO conversion
  135.                                                             rate=Double.parseDouble(cbrateus.getSelectedItem().toString());
  136.                                                             usdamount=Double.parseDouble(txteurous.getText());
  137.                                                             euroamount=usdToEuro(rate,usdamount);
  138.                                                             txteuro.setText(""+euroamount);
  139.                                                 }
  140.                                                 else{
  141.                                                 showMessage("Please leave the result text box blank");
  142.                                     }
  143.  
  144.                         }
  145.  
  146.             }
  147.  
  148.  
Compilation error #stdin compilation error #stdout 0s 0KB
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compilation info 
Main.java:146: error: reached end of file while parsing
            }
             ^
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https://ideone.com/d4QAJs
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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