Last active
August 29, 2015 14:15
-
-
Save snarkbait/7861ccb5047253db105b to your computer and use it in GitHub Desktop.
2014 US Federal Tax Calculator
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
public class TaxCalculator implements TaxLookup | |
{ | |
public static double getTax(int income, int status) | |
{ | |
double tax = 0; | |
for (int i = 0; i < 7; i++) | |
{ | |
if (income > lookup[status][i][1]) | |
{ | |
tax = lookup[status][i][0] + (income - lookup[status][i][1]) * lookup[status][i][2]; | |
} | |
} | |
return tax; | |
} | |
public static int getBracket(int income, int status) | |
{ | |
int bracket = 0; | |
for (int i = 0; i < 7; i++) | |
{ | |
if (income > lookup[status][i][1]) | |
{ | |
bracket = (int)(lookup[status][i][2]*100); | |
} | |
} | |
return bracket; | |
} | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import java.awt.event.KeyEvent; | |
import javax.swing.JOptionPane; | |
public class TaxCalculatorGUI extends javax.swing.JFrame { | |
public TaxCalculatorGUI() { | |
initComponents(); | |
} | |
/** | |
* 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. | |
*/ | |
@SuppressWarnings("unchecked") | |
// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents | |
private void initComponents() { | |
jLabel1 = new javax.swing.JLabel(); | |
cmbFilingStatus = new javax.swing.JComboBox(); | |
jLabel2 = new javax.swing.JLabel(); | |
txtIncome = new javax.swing.JTextField(); | |
btnCalculate = new javax.swing.JButton(); | |
jLabel3 = new javax.swing.JLabel(); | |
lblTax = new javax.swing.JLabel(); | |
jLabel4 = new javax.swing.JLabel(); | |
lblBracket = new javax.swing.JLabel(); | |
jLabel5 = new javax.swing.JLabel(); | |
lblPercent = new javax.swing.JLabel(); | |
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); | |
setTitle("Tax Calculator Federal 2015"); | |
jLabel1.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N | |
jLabel1.setText("Enter Filing Status:"); | |
cmbFilingStatus.setFont(new java.awt.Font("Tahoma", 0, 12)); // NOI18N | |
cmbFilingStatus.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Single", "Married - Filing Jointly", "Married - Filing Seperately", "Head of Household" })); | |
cmbFilingStatus.addActionListener(new java.awt.event.ActionListener() { | |
public void actionPerformed(java.awt.event.ActionEvent evt) { | |
cmbFilingStatusActionPerformed(evt); | |
} | |
}); | |
jLabel2.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N | |
jLabel2.setText("Enter Taxable Income (rounded up to nearest dollar):"); | |
txtIncome.setFont(new java.awt.Font("Tahoma", 0, 12)); // NOI18N | |
txtIncome.addKeyListener(new java.awt.event.KeyAdapter() { | |
public void keyPressed(java.awt.event.KeyEvent evt) { | |
txtIncomeKeyPressed(evt); | |
} | |
}); | |
btnCalculate.setText("Calculate"); | |
btnCalculate.addActionListener(new java.awt.event.ActionListener() { | |
public void actionPerformed(java.awt.event.ActionEvent evt) { | |
btnCalculateActionPerformed(evt); | |
} | |
}); | |
jLabel3.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N | |
jLabel3.setText("Your Income Tax is:"); | |
lblTax.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N | |
lblTax.setText("$"); | |
jLabel4.setText("Your Income Tax Bracket:"); | |
lblBracket.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N | |
lblBracket.setText("%"); | |
jLabel5.setText("Your tax as % of income:"); | |
lblPercent.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N | |
lblPercent.setText("%"); | |
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); | |
getContentPane().setLayout(layout); | |
layout.setHorizontalGroup( | |
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) | |
.addGroup(layout.createSequentialGroup() | |
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) | |
.addGroup(layout.createSequentialGroup() | |
.addGap(63, 63, 63) | |
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) | |
.addGroup(layout.createSequentialGroup() | |
.addComponent(jLabel1) | |
.addGap(18, 18, 18) | |
.addComponent(cmbFilingStatus, javax.swing.GroupLayout.PREFERRED_SIZE, 247, javax.swing.GroupLayout.PREFERRED_SIZE)) | |
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) | |
.addComponent(jLabel2) | |
.addComponent(btnCalculate) | |
.addComponent(txtIncome, javax.swing.GroupLayout.PREFERRED_SIZE, 191, javax.swing.GroupLayout.PREFERRED_SIZE)))) | |
.addGroup(layout.createSequentialGroup() | |
.addGap(69, 69, 69) | |
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) | |
.addComponent(jLabel4) | |
.addComponent(jLabel3) | |
.addComponent(jLabel5)) | |
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) | |
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) | |
.addComponent(lblTax, javax.swing.GroupLayout.PREFERRED_SIZE, 174, javax.swing.GroupLayout.PREFERRED_SIZE) | |
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false) | |
.addComponent(lblBracket, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, 70, Short.MAX_VALUE) | |
.addComponent(lblPercent, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))) | |
.addContainerGap(55, Short.MAX_VALUE)) | |
); | |
layout.setVerticalGroup( | |
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) | |
.addGroup(layout.createSequentialGroup() | |
.addGap(63, 63, 63) | |
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) | |
.addComponent(jLabel1) | |
.addComponent(cmbFilingStatus, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) | |
.addGap(43, 43, 43) | |
.addComponent(jLabel2) | |
.addGap(18, 18, 18) | |
.addComponent(txtIncome, javax.swing.GroupLayout.PREFERRED_SIZE, 32, javax.swing.GroupLayout.PREFERRED_SIZE) | |
.addGap(18, 18, 18) | |
.addComponent(btnCalculate) | |
.addGap(18, 18, 18) | |
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) | |
.addComponent(lblTax, javax.swing.GroupLayout.PREFERRED_SIZE, 40, javax.swing.GroupLayout.PREFERRED_SIZE) | |
.addComponent(jLabel3)) | |
.addGap(18, 18, 18) | |
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) | |
.addComponent(jLabel4) | |
.addComponent(lblBracket, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)) | |
.addGap(18, 18, 18) | |
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) | |
.addComponent(jLabel5) | |
.addComponent(lblPercent, javax.swing.GroupLayout.PREFERRED_SIZE, 23, javax.swing.GroupLayout.PREFERRED_SIZE)) | |
.addContainerGap(16, Short.MAX_VALUE)) | |
); | |
pack(); | |
setLocationRelativeTo(null); | |
}// </editor-fold>//GEN-END:initComponents | |
private void btnCalculateActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnCalculateActionPerformed | |
try | |
{ | |
int income = Integer.parseInt(txtIncome.getText()); | |
double tax = (TaxCalculator.getTax(income, cmbFilingStatus.getSelectedIndex()) * 100) /100; | |
String formattedTax = String.format("$ %,.2f", tax); | |
lblTax.setText(formattedTax); | |
lblBracket.setText(TaxCalculator.getBracket(income, cmbFilingStatus.getSelectedIndex()) + "%"); | |
double percent = (tax / income) * 100; | |
lblPercent.setText(String.format("%.2f%%", percent)); | |
} | |
catch (NumberFormatException nfe) | |
{ | |
JOptionPane.showMessageDialog(rootPane, "Must be a valid number", "Error", JOptionPane.ERROR_MESSAGE); | |
txtIncome.requestFocusInWindow(); | |
txtIncome.setText(""); | |
} | |
}//GEN-LAST:event_btnCalculateActionPerformed | |
private void cmbFilingStatusActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_cmbFilingStatusActionPerformed | |
if (!txtIncome.getText().isEmpty()) | |
{ | |
btnCalculate.doClick(); | |
} | |
}//GEN-LAST:event_cmbFilingStatusActionPerformed | |
private void txtIncomeKeyPressed(java.awt.event.KeyEvent evt) {//GEN-FIRST:event_txtIncomeKeyPressed | |
int key = evt.getKeyCode(); | |
if (key==KeyEvent.VK_ENTER) | |
{ | |
btnCalculate.doClick(); | |
} | |
}//GEN-LAST:event_txtIncomeKeyPressed | |
/** | |
* @param args the command line arguments | |
*/ | |
public static void main(String args[]) { | |
/* Set the Nimbus look and feel */ | |
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) "> | |
/* 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(TaxCalculatorGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); | |
} catch (InstantiationException ex) { | |
java.util.logging.Logger.getLogger(TaxCalculatorGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); | |
} catch (IllegalAccessException ex) { | |
java.util.logging.Logger.getLogger(TaxCalculatorGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); | |
} catch (javax.swing.UnsupportedLookAndFeelException ex) { | |
java.util.logging.Logger.getLogger(TaxCalculatorGUI.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); | |
} | |
//</editor-fold> | |
/* Create and display the form */ | |
java.awt.EventQueue.invokeLater(new Runnable() { | |
public void run() { | |
new TaxCalculatorGUI().setVisible(true); | |
} | |
}); | |
} | |
// Variables declaration - do not modify//GEN-BEGIN:variables | |
private javax.swing.JButton btnCalculate; | |
private javax.swing.JComboBox cmbFilingStatus; | |
private javax.swing.JLabel jLabel1; | |
private javax.swing.JLabel jLabel2; | |
private javax.swing.JLabel jLabel3; | |
private javax.swing.JLabel jLabel4; | |
private javax.swing.JLabel jLabel5; | |
private javax.swing.JLabel lblBracket; | |
private javax.swing.JLabel lblPercent; | |
private javax.swing.JLabel lblTax; | |
private javax.swing.JTextField txtIncome; | |
// End of variables declaration//GEN-END:variables | |
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
public interface TaxLookup { | |
double[][][] lookup = { | |
{ | |
// status 0 | |
{ 0 , 0, 0.10}, | |
{ 907.50, 9075, 0.15}, | |
{ 5081.25, 36900, 0.25}, | |
{ 18193.75, 89350, 0.28}, | |
{ 45353.75, 186350, 0.33}, | |
{ 117541.25, 405100, 0.35 }, | |
{ 118118.75, 406750, 0.396 } | |
}, | |
{ | |
// status 1 | |
{ 0, 0, 0.10 }, | |
{ 1815, 18150, 0.15 }, | |
{ 10162.50, 73800, 0.25 }, | |
{ 28925, 148850, 0.28 }, | |
{ 50765, 226850, 0.33 }, | |
{ 109587.5, 405100, 0.35 }, | |
{ 127962.5, 457600, 0.396 } | |
}, | |
{ | |
// status 2 | |
{ 0 , 0, 0.10 }, | |
{ 907.50, 9075, 0.15 }, | |
{ 5081.25, 36900, 0.25 }, | |
{ 14462.5, 74425, 0.28 }, | |
{ 25382.5, 113425, 0.33 }, | |
{ 54793.75, 202550, 0.35 }, | |
{ 63981.25, 228800, 0.396 } | |
}, | |
{ | |
// status 3 | |
{ 0, 0, 0.10 }, | |
{ 1295, 12950, 0.15 }, | |
{ 6762.5, 49400, 0.25 }, | |
{ 26300, 127550, 0.28 }, | |
{ 48434, 206600 , 0.33 }, | |
{ 113939, 405100, 0.35 }, | |
{ 123424, 432200, 0.396 } | |
} | |
}; | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment