use the exact naming convention for directories described by instructor

1 files changed, 91 insertions, 0 deletions

diff --git a/src/Q10/TaxReturn.java b/src/Q10/TaxReturn.java
new file mode 100644
index 0000000..91a226a
--- /dev/null
+++ b/src/Q10/TaxReturn.java
@@ -0,0 +1,91 @@
+package ca.mokhan.assignment1;
+
+import java.util.Scanner;
+
+public class TaxReturn {
+  private double income;
+  private int status;
+  private int children;
+
+  /**
+   * Constructs a TaxReturn object for a given income and marital status, and computes the tax.
+   *
+   * @param income the taxpayer income
+   * @param status either SINGLE or MARRIED
+   */
+  public TaxReturn(double income, int status) {
+    this(income, status, 0);
+  }
+
+  public TaxReturn(double income, int status, int children) {
+    this.income = income;
+    this.status = status;
+    this.children = children;
+    if (this.isSingle()) this.income -= children * 5000;
+  }
+
+  public double getTax() {
+    double tax = 0;
+
+    if (isSingle()) {
+      if (income <= SINGLE_BRACKET1) tax = RATE1 * income;
+      else if (income <= SINGLE_BRACKET2)
+        tax = RATE1 * SINGLE_BRACKET1 + RATE2 * (income - SINGLE_BRACKET1);
+      else
+        tax =
+            RATE1 * SINGLE_BRACKET1
+                + RATE2 * (SINGLE_BRACKET2 - SINGLE_BRACKET1)
+                + RATE3 * (income - SINGLE_BRACKET2);
+
+      if (income > 249999.0) tax += (income - 150000) * 0.25;
+    } else {
+      if (income <= MARRIED_BRACKET1) tax = RATE1 * income;
+      else if (income <= MARRIED_BRACKET2)
+        tax = RATE1 * MARRIED_BRACKET1 + RATE2 * (income - MARRIED_BRACKET1);
+      else
+        tax =
+            RATE1 * MARRIED_BRACKET1
+                + RATE2 * (MARRIED_BRACKET2 - MARRIED_BRACKET1)
+                + RATE3 * (income - MARRIED_BRACKET2);
+
+      if (income > 349999.0) tax += (income - 200000) * 0.35;
+    }
+    return tax;
+  }
+
+  public static final int SINGLE = 1;
+  public static final int MARRIED = 2;
+
+  public static final double RATE1 = 0.15;
+  public static final double RATE2 = 0.28;
+  public static final double RATE3 = 0.31;
+
+  public static final double SINGLE_BRACKET1 = 21450;
+  public static final double SINGLE_BRACKET2 = 51900;
+
+  public static final double MARRIED_BRACKET1 = 35800;
+  public static final double MARRIED_BRACKET2 = 86500;
+
+  private boolean isSingle() {
+    return this.status == SINGLE;
+  }
+
+  public static void main(String[] args) {
+    Scanner in = new Scanner(System.in);
+    System.out.print("Please enter your income: ");
+    double income = in.nextDouble();
+
+    System.out.print("Enter S (single) or M (married): ");
+    String input = in.next();
+    int status = 0;
+
+    if (input.equalsIgnoreCase("S")) status = TaxReturn.SINGLE;
+    else if (input.equalsIgnoreCase("M")) status = TaxReturn.MARRIED;
+    else {
+      System.out.println("Bad input.");
+      return;
+    }
+    TaxReturn aTaxReturn = new TaxReturn(income, status);
+    System.out.println("The tax is " + aTaxReturn.getTax());
+  }
+}