add problem description for problem 10

1 files changed, 67 insertions, 5 deletions

diff --git a/src/Q10/README.md b/src/Q10/README.md
index 6590a30..dcaf1fe 100644
--- a/src/Q10/README.md
+++ b/src/Q10/README.md
@@ -7,11 +7,73 @@ Student ID: 3431709
 
 Modify the following program to the specifications given below:
 
-* Add a new status `SingleParent` where the tax is computed as a SINGLE but with a further reduction of $5000 per child.
-* Add a new tax condition ¿ 
-  * if the income is greater than $249,999 for SINGLE, then add a tax of 25% on income amount above $150,000;
-  * if the income is greater than $349,999 for MARRIED, then add a tax of 35% on income amount above $200,000.
-* Unknown status ¿ if the status doesn't belong to `SINGLE` or `MARRIED` or `SINGLE_PARENT`, then compute a 33% tax on the income.
+* I. Add a new status `SingleParent` where the tax is computed as a SINGLE but with a further reduction of $5000 per child.
+* II. Add a new tax condition - if the income is greater than $249,999 for SINGLE, then add a tax of 25% on income amount above $150,000; if the income is greater than $349,999 for MARRIED, then add a tax of 35% on income amount above $200,000.
+* III. Unknown status - if the status doesn't belong to `SINGLE` or `MARRIED` or `SINGLE_PARENT`, then compute a 33% tax on the income.
+
+```java
+import java.util.Scanner;
+
+public class TaxReturn {
+  public TaxReturn(double anIncome, int aStatus) {
+    income = anIncome;
+    status = aStatus;
+  }
+
+  public double getTax() {
+    double tax = 0;
+    if (status == SINGLE) {
+      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);
+    } 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);
+    }
+    return tax;
+  }
+
+  public static final int SINGLE = 1;
+  public static final int MARRIED = 2;
+  private static final double RATE1 = 0.15;
+  private static final double RATE2 = 0.28;
+  private static final double RATE3 = 0.31;
+  private static final double SINGLE_BRACKET1 = 21450;
+  private static final double SINGLE_BRACKET2 = 51900;
+  private static final double MARRIED_BRACKET1 = 35800;
+  private static final double MARRIED_BRACKET2 = 86500;
+  private double income;
+  private int status;
+
+  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());
+  }
+}
+```
 
 2. Description of the Code: