currency_Converter_in_java

package project;

public class currencyConvertor extends javax.swing.JFrame {

double US_Dollar = 1.16; double Nigerian_Naira = 476.57; double Brazilian_Real = 5.47; double Canadian_Dollar = 1.71; double Kenyan_Shilling = 132.53; double Indonesian_Rupiah = 19554.94; double Indian_Rupee = 95.21; double Philippine_Pisco = 71.17; double Pakistani_Rupee = 162.74;

String[] currencyUnits = { "Units", "US Dollar", "Nigerian Naira", "Brazilian Real", "Canadian Dollar", "Kenyan Shilling", "Indonesian Rupiah", "Indian Rupee", "Philippine Pisco", "Paskistani Rupee", };

public currencyConvertor() { initComponents(); }

@SuppressWarnings("unchecked") private void initComponents() { jPanel1 = new javax.swing.JPanel(); jLabel1 = new javax.swing.JLabel(); firstCountry = new javax.swing.JComboBox<>(); secondCountry = new javax.swing.JComboBox<>(); jLabel2 = new javax.swing.JLabel(); jLabel3 = new javax.swing.JLabel(); t1 = new javax.swing.JTextField(); t2 = new javax.swing.JTextField(); jButton1 = new javax.swing.JButton(); jButton2 = new javax.swing.JButton(); jButton3 = new javax.swing.JButton(); secondCurrencyUnit = new javax.swing.JLabel(); firstCurrencyUnit = new javax.swing.JLabel();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

jPanel1.setBorder(
  javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0), 5)
);

jLabel1.setFont(new java.awt.Font("Tahoma", 1, 24)); // NOI18N
jLabel1.setText("Currency Converter");

firstCountry.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N
firstCountry.setModel(
  new javax.swing.DefaultComboBoxModel<>(
    new String[] {
      "Choose One...",
      "USA",
      "Nigeria",
      "Brazil",
      "Canada",
      "Kenyan",
      "Indonesia",
      "India",
      "Philippine",
      "Pakistan",
    }
  )
);
firstCountry.addItemListener(
  new java.awt.event.ItemListener() {
    public void itemStateChanged(java.awt.event.ItemEvent evt) {
      firstCountryItemStateChanged(evt);
    }
  }
);
firstCountry.addActionListener(
  new java.awt.event.ActionListener() {
    public void actionPerformed(java.awt.event.ActionEvent evt) {
      firstCountryActionPerformed(evt);
    }
  }
);

secondCountry.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N
secondCountry.setModel(
  new javax.swing.DefaultComboBoxModel<>(
    new String[] {
      "Choose One...",
      "USA",
      "Nigeria",
      "Brazil",
      "Canada",
      "Kenyan",
      "Indonesia",
      "India",
      "Philippine",
      "Pakistan",
    }
  )
);
secondCountry.addItemListener(
  new java.awt.event.ItemListener() {
    public void itemStateChanged(java.awt.event.ItemEvent evt) {
      secondCountryItemStateChanged(evt);
    }
  }
);

jLabel2.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N
jLabel2.setText("From currency Of");

jLabel3.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N
jLabel3.setText("To currency Of");

t1.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N

t2.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N

jButton1.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N
jButton1.setText("Convert Currency");
jButton1.addActionListener(
  new java.awt.event.ActionListener() {
    public void actionPerformed(java.awt.event.ActionEvent evt) {
      jButton1ActionPerformed(evt);
    }
  }
);

jButton2.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N
jButton2.setText("Reset");
jButton2.addActionListener(
  new java.awt.event.ActionListener() {
    public void actionPerformed(java.awt.event.ActionEvent evt) {
      jButton2ActionPerformed(evt);
    }
  }
);

jButton3.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N
jButton3.setText("Exit");
jButton3.addActionListener(
  new java.awt.event.ActionListener() {
    public void actionPerformed(java.awt.event.ActionEvent evt) {
      jButton3ActionPerformed(evt);
    }
  }
);

secondCurrencyUnit.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N
secondCurrencyUnit.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT);
secondCurrencyUnit.setText("units");

firstCurrencyUnit.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N
firstCurrencyUnit.setHorizontalAlignment(javax.swing.SwingConstants.RIGHT);
firstCurrencyUnit.setText("units");

javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(
  jPanel1
);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
  jPanel1Layout
    .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
    .addGroup(
      javax.swing.GroupLayout.Alignment.TRAILING,
      jPanel1Layout
        .createSequentialGroup()
        .addContainerGap(
          javax.swing.GroupLayout.DEFAULT_SIZE,
          Short.MAX_VALUE
        )
        .addComponent(jLabel1)
        .addGap(290, 290, 290)
    )
    .addGroup(
      jPanel1Layout
        .createSequentialGroup()
        .addGap(93, 93, 93)
        .addGroup(
          jPanel1Layout
            .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(jButton1)
            .addGroup(
              jPanel1Layout
                .createParallelGroup(
                  javax.swing.GroupLayout.Alignment.LEADING,
                  false
                )
                .addComponent(
                  firstCountry,
                  0,
                  javax.swing.GroupLayout.DEFAULT_SIZE,
                  Short.MAX_VALUE
                )
                .addComponent(t1)
                .addComponent(
                  jLabel2,
                  javax.swing.GroupLayout.PREFERRED_SIZE,
                  131,
                  javax.swing.GroupLayout.PREFERRED_SIZE
                )
                .addComponent(
                  firstCurrencyUnit,
                  javax.swing.GroupLayout.DEFAULT_SIZE,
                  277,
                  Short.MAX_VALUE
                )
            )
        )
        .addGroup(
          jPanel1Layout
            .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(
              jPanel1Layout
                .createSequentialGroup()
                .addGap(81, 81, 81)
                .addGroup(
                  jPanel1Layout
                    .createParallelGroup(
                      javax.swing.GroupLayout.Alignment.LEADING
                    )
                    .addGroup(
                      jPanel1Layout
                        .createParallelGroup(
                          javax.swing.GroupLayout.Alignment.LEADING,
                          false
                        )
                        .addComponent(jLabel3)
                        .addComponent(
                          secondCountry,
                          0,
                          272,
                          Short.MAX_VALUE
                        )
                        .addComponent(t2)
                    )
                    .addComponent(
                      secondCurrencyUnit,
                      javax.swing.GroupLayout.PREFERRED_SIZE,
                      277,
                      javax.swing.GroupLayout.PREFERRED_SIZE
                    )
                )
            )
            .addGroup(
              jPanel1Layout
                .createSequentialGroup()
                .addGap(11, 11, 11)
                .addComponent(jButton2)
                .addGap(94, 94, 94)
                .addComponent(jButton3)
            )
        )
        .addContainerGap(114, Short.MAX_VALUE)
    )
);
jPanel1Layout.setVerticalGroup(
  jPanel1Layout
    .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
    .addGroup(
      jPanel1Layout
        .createSequentialGroup()
        .addContainerGap()
        .addComponent(jLabel1)
        .addGap(28, 28, 28)
        .addGroup(
          jPanel1Layout
            .createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
            .addComponent(jLabel2)
            .addComponent(jLabel3)
        )
        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
        .addGroup(
          jPanel1Layout
            .createParallelGroup(
              javax.swing.GroupLayout.Alignment.LEADING,
              false
            )
            .addComponent(
              firstCountry,
              javax.swing.GroupLayout.DEFAULT_SIZE,
              42,
              Short.MAX_VALUE
            )
            .addComponent(secondCountry)
        )
        .addGap(18, 18, 18)
        .addGroup(
          jPanel1Layout
            .createParallelGroup(
              javax.swing.GroupLayout.Alignment.LEADING,
              false
            )
            .addComponent(
              t1,
              javax.swing.GroupLayout.DEFAULT_SIZE,
              42,
              Short.MAX_VALUE
            )
            .addComponent(t2)
        )
        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
        .addGroup(
          jPanel1Layout
            .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(
              jPanel1Layout
                .createSequentialGroup()
                .addComponent(
                  secondCurrencyUnit,
                  javax.swing.GroupLayout.PREFERRED_SIZE,
                  20,
                  javax.swing.GroupLayout.PREFERRED_SIZE
                )
                .addGap(23, 23, 23)
            )
            .addGroup(
              javax.swing.GroupLayout.Alignment.TRAILING,
              jPanel1Layout
                .createSequentialGroup()
                .addComponent(
                  firstCurrencyUnit,
                  javax.swing.GroupLayout.PREFERRED_SIZE,
                  20,
                  javax.swing.GroupLayout.PREFERRED_SIZE
                )
                .addGap(18, 18, 18)
            )
        )
        .addGroup(
          jPanel1Layout
            .createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
            .addComponent(jButton1)
            .addComponent(jButton2)
            .addComponent(jButton3)
        )
        .addContainerGap(57, Short.MAX_VALUE)
    )
);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(
  getContentPane()
);
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
  layout
    .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
    .addGroup(
      layout
        .createSequentialGroup()
        .addContainerGap()
        .addComponent(
          jPanel1,
          javax.swing.GroupLayout.DEFAULT_SIZE,
          javax.swing.GroupLayout.DEFAULT_SIZE,
          Short.MAX_VALUE
        )
        .addContainerGap()
    )
);
layout.setVerticalGroup(
  layout
    .createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
    .addGroup(
      layout
        .createSequentialGroup()
        .addContainerGap()
        .addComponent(
          jPanel1,
          javax.swing.GroupLayout.PREFERRED_SIZE,
          javax.swing.GroupLayout.DEFAULT_SIZE,
          javax.swing.GroupLayout.PREFERRED_SIZE
        )
        .addContainerGap(
          javax.swing.GroupLayout.DEFAULT_SIZE,
          Short.MAX_VALUE
        )
    )
);

pack();

}

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) { System.exit(0); }

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) { firstCountry.setSelectedIndex(0); secondCountry.setSelectedIndex(0); t1.setText(""); t2.setText(""); } //GEN-LAST:event_jButton2ActionPerformed

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { double amountToChange = Double.parseDouble(t1.getText()); double amountChanged = 0.0; double amountInPounds = 0.0;

switch (firstCountry.getSelectedItem().toString()) {
  case "USA":
    amountInPounds = amountToChange / US_Dollar;
    break;
  case "Nigeria":
    amountInPounds = amountToChange / Nigerian_Naira;
    break;
  case "Brazil":
    amountInPounds = amountToChange / Brazilian_Real;
    break;
  case "Canada":
    amountInPounds = amountToChange / Canadian_Dollar;
    break;
  case "Kenyan":
    amountInPounds = amountToChange / Kenyan_Shilling;
    break;
  case "Indonesia":
    amountInPounds = amountToChange / Indonesian_Rupiah;
    break;
  case "India":
    amountInPounds = amountToChange / Indian_Rupee;
    break;
  case "Philippine":
    amountInPounds = amountToChange / Philippine_Pisco;
    break;
  case "Pakistan":
    amountInPounds = amountToChange / Pakistani_Rupee;
    break;
  default:
    amountInPounds = 0.0;
}

switch (secondCountry.getSelectedItem().toString()) {
  case "USA":
    amountChanged = amountInPounds * US_Dollar;
    break;
  case "Nigeria":
    amountChanged = amountInPounds * Nigerian_Naira;
    break;
  case "Brazil":
    amountChanged = amountInPounds * Brazilian_Real;
    break;
  case "Canada":
    amountChanged = amountInPounds * Canadian_Dollar;
    break;
  case "Kenyan":
    amountChanged = amountInPounds * Kenyan_Shilling;
    break;
  case "Indonesia":
    amountChanged = amountInPounds * Indonesian_Rupiah;
    break;
  case "India":
    amountChanged = amountInPounds * Indian_Rupee;
    break;
  case "Philippine":
    amountChanged = amountInPounds * Philippine_Pisco;
    break;
  case "Pakistan":
    amountChanged = amountInPounds * Pakistani_Rupee;
    break;
  default:
    amountChanged = amountInPounds * 0.0;
}

String value = String.format("%.2f", amountChanged);

t2.setText(value);

} //GEN-LAST:event_jButton1ActionPerformed

private void firstCountryActionPerformed(java.awt.event.ActionEvent evt) { //GEN-FIRST:event_firstCountryActionPerformed // TODO add your handling code here: } //GEN-LAST:event_firstCountryActionPerformed

private void firstCountryItemStateChanged(java.awt.event.ItemEvent evt) { //GEN-FIRST:event_firstCountryItemStateChanged firstCurrencyUnit.setText(currencyUnits[firstCountry.getSelectedIndex()]); } //GEN-LAST:event_firstCountryItemStateChanged

private void secondCountryItemStateChanged(java.awt.event.ItemEvent evt) { //GEN-FIRST:event_secondCountryItemStateChanged secondCurrencyUnit.setText(currencyUnits[secondCountry.getSelectedIndex()]); } //GEN-LAST:event_secondCountryItemStateChanged

/**

@param args the command line arguments / public static void main(String args[]) { / Set the Nimbus look and feel / // / If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
- For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html */ try { for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) { if ("Nimbus".equals(info.getName())) { javax.swing.UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (ClassNotFoundException ex) { java.util.logging.Logger .getLogger(currencyConvertor.class.getName()) .log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger .getLogger(currencyConvertor.class.getName()) .log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger .getLogger(currencyConvertor.class.getName()) .log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger .getLogger(currencyConvertor.class.getName()) .log(java.util.logging.Level.SEVERE, null, ex); } // //

/* Create and display the form */
java.awt.EventQueue.invokeLater(
  new Runnable() {
    public void run() {
      new currencyConvertor().setVisible(true);
    }
  }
);

}

// Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JComboBox firstCountry; private javax.swing.JLabel firstCurrencyUnit; private javax.swing.JButton jButton1; private javax.swing.JButton jButton2; private javax.swing.JButton jButton3; private javax.swing.JLabel jLabel1; private javax.swing.JLabel jLabel2; private javax.swing.JLabel jLabel3; private javax.swing.JPanel jPanel1; private javax.swing.JComboBox secondCountry; private javax.swing.JLabel secondCurrencyUnit; private javax.swing.JTextField t1; private javax.swing.JTextField t2; // End of variables declaration//GEN-END:variables }

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