added generic class

.idea/workspace.xml

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Checkbook/src/main/java/Checkbook.java

         this.transactionList = transactionList;
     }
 
+    public Checkbook(double cashAmount){
+        this.add(new Transaction("",new Payee(),TransactionType.DEBIT, cashAmount));
+    }
+
+    public Checkbook(Payee owner, double cashAmount){
+        this.add(new Transaction("",owner,TransactionType.DEBIT, cashAmount));
+    }
+
     public int size(){
     return transactionList.size();
     }
     }
 
     public Transaction[] toArray(Transaction[] input) {
-        Transaction[] arr = transactionList.toArray(input);
-        return arr;
+        for (Transaction t : input) {
+            transactionList.add(t);
+        }
+        return transactionList.toArray(new Transaction[transactionList.size()]);
     }
 
     public double checkbookValue() {
     public Transaction[] getAllCredit() {
         ArrayList<Transaction> list = new ArrayList<>();
         for (Transaction t: transactionList) {
-            if(t.getType()==TransactionType.DEBIT) list.add(t);
+            if(t.getType()==TransactionType.CREDIT) list.add(t);
         }
         return list.toArray(new Transaction[0]);
     }

Checkbook/src/main/java/GenericAccount.java

 
-public class GenericAccount {
+public class GenericAccount <T extends AccountBook>{
+
+    AccountBook accountBook;
+
+    public GenericAccount(AccountBook accountBook) {
+        this.accountBook = accountBook;
+    }
 }

Checkbook/src/test/java/CheckbookTest.java

     ArrayList<Transaction> list;
     Transaction transaction = new Transaction("",new Payee(), TransactionType.DEBIT,1.50);
     Transaction transaction2 =new Transaction("test", new Payee(), TransactionType.CREDIT, 50.50);
-    Checkbook checkbookOneParam,
+    Checkbook checkbookOneParam = new Checkbook(3.00);
+    Checkbook checkbookTwoParam = new Checkbook(new Payee(), 5.00);
 
     @org.junit.Before
     public void setUp() throws Exception {
 
     @Test
     public void toArrayparam2test(){
-        Transaction[] arr = new Transaction[0];
-        Transaction[] actual = checkbook2.toArray(arr);
-        Assert.assertEquals(Transaction[].class, actual.getClass());
+        Transaction[] arr = new Transaction[]{new Transaction("", new Payee(),TransactionType.DEBIT,3.00)};
+        Transaction[] actual = checkbook.toArray(arr);
+        Assert.assertEquals(3, actual.length);
     }
 
     @Test
     public void checkbookValue(){
        double actual = checkbook.checkbookValue();
-    Assert.assertEquals(-52.0, actual);
+    Assert.assertEquals(-49.0, actual);
     }
 
     @Test
         Assert.assertEquals(arr, checkbook.getAllCredit());
     }
 
+    @Test
+    public void constructorOneParam(){
+        Assert.assertEquals(1, checkbookOneParam.size());
+    }
+
+    @Test
+    public void constructorTwoParam(){
+        Assert.assertEquals(1, checkbookTwoParam.size());
+    }
 }