initial commit

src/bank/BankAccount.java

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+package bank;
+
+public abstract class BankAccount {
+    protected double balance;
+    protected String owner;
+
+    public double getBalance() {
+        return balance;
+    }
+    public void deposit(double amount){
+        balance += amount;
+    }
+    public boolean withdraw(double amount){
+        if(balance<amount) return false;
+        
+        balance -= amount;
+        return true;
+    }
+
+    @Override
+    public String toString() {
+        return owner + " have " + balance + "CHF on his account.";
+    }
+}

src/bank/BankController.java

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+package bank;
+
+import hevs.utils.DateUtils;
+
+/**
+ * Simple bank account control class for lab 15
+ * @author @author <a href='mailto:pandre.mudry&#64;hevs.ch'> Pierre-Andr<64> Mudry</a>
+ */
+public class BankController {
+	
+	public BankController() {
+		/**
+		 *  Verify that checks are done correctly
+		 *  in constructor
+		 */		
+		Checking c1;
+			
+		System.out.print("3 Should trigger error : minbalance positive\n\t");
+		c1 = new Checking("Toto", 1000, 1000);		
+		
+		System.out.print("4 Should trigger error : Amount < min and min < 0\n\t"); 
+		c1 = new Checking("Toto", -2000, -1000);		
+		
+		/**
+		 * Functional tests that are asserted
+		 */		
+		// Set a positive limit (impossible)
+		System.out.print("6 Should trigger error : minbalance positive\n\t");
+		c1 = new Checking("Test", 1000, -1000);
+		c1.setMinBalance(10000.0);
+					
+		/**
+		 * Savings account checks
+		 */
+		Savings s1;
+		
+		System.out.print("9 Should trigger error : abnormal init of savings\n\t");
+		s1 = new Savings("Toto", 1000, -3.0);
+				
+		// Deposit of negative value
+		System.out.print("11 Should trigger error : negative deposit \n\t");
+		s1 = new Savings("Test", 1000, 1.0);
+		s1.deposit(-100.0);
+		assert s1.getBalance() == 1000.0;
+		
+		// Withdrawing more than possible
+		System.out.print("12 Should trigger error : taking more than available\n\t");
+		s1 = new Savings("Test", 1000, 1.0);
+		s1.withdraw(3000);	
+		assert s1.balance == 1000 : s1.balance;
+		
+		// Interest computation check and normal operations checks
+		System.out.println("13 Should not trigger error : interest check and normal operations");
+		s1 = new Savings("Test", 1000, 0.032);
+		s1.withdraw(20.0);	
+		assert s1.balance == (1000 - 20.0);
+		s1.withdraw(100.0);	
+		assert s1.balance == 1000 - 20.0 - 100.0;
+		s1.deposit(120.0);	
+		assert s1.balance == 1000.0;
+		double interest = s1.calcInterest(DateUtils.createDate("1/1/2011"), DateUtils.createDate("11/1/2011"));
+		
+		// Manual check of interest
+		assert interest == ((1000.0 * 10 * 3.2 / 100) / 360.0);		
+	}
+		
+	/**	
+	 * @param args
+	 */
+	public static void main(String[] args) throws RuntimeException{
+		boolean assertionsAreEnabled = false;
+		assert (assertionsAreEnabled = true);
+
+		if (!assertionsAreEnabled) {
+			throw new RuntimeException( "Assertions must be enabled ! Add -ea to the VM arguments " +
+					"(Run Configuration menu in Eclipse)" );
+		}
+
+		new BankController();
+	}
+}

src/bank/Checking.java

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+package bank;
+
+public class Checking extends BankAccount{
+    private double minBalance;
+
+    Checking(String owner, double amount, double minBalance){
+        this.owner = owner;
+        this.balance = amount;
+        this.minBalance = minBalance;
+    }
+    public void setMinBalance(double minBalance) {
+        this.minBalance = minBalance;
+    }
+    public double getMinBalance() {
+        return minBalance;
+    }
+}

src/bank/Savings.java

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+package bank;
+
+import hevs.utils.DateUtils;
+import java.util.Date;
+
+public class Savings extends BankAccount{
+    private double interestRate;
+    Savings(String owner, double amount, double interestRate){
+        this.owner = owner;
+        this.balance = amount;
+        this.interestRate = interestRate;
+    }
+    public double calcInterest(Date a, Date b){
+        int day = DateUtils.nDays(a, b);
+        return interestRate * (day/360.0);
+    }
+}