Merge pull request nus-cs2113-AY2223S2#40 from manushridiv/withdrawFe…

…ature

Added a Withdraw feature in switch case

data/save.txt

@@ -0,0 +1 @@
+jen;0.0

src/main/java/seedu/bankwithus/Account.java

@@ -25,4 +25,7 @@ public float getAccountBalance() {
         return balance;
     }
 
+    public void setBalance(float balance) {
+        this.balance = balance;
+    }
 }

src/main/java/seedu/bankwithus/Parser.java

@@ -13,6 +13,13 @@ public Parser(BankWithUs bwu) {
         this.bwu = bwu;
     }
 
+    public float parseWithdrawAmt(String args) {
+        float withdrawAmt = Float.parseFloat(args);
+        float currBal = bwu.accounts.accounts.get(0).balance;
+        float final_bal = currBal-withdrawAmt;
+        return final_bal;
+    }
+
     /**
      * Parses the user input into command and arguments.
      */
@@ -24,18 +31,30 @@ public void parseUserInput(String input) throws CommandNotFoundException {
         String args = split.length == 2 ? split[1] : "";
         Ui screen = new Ui();
         switch (command) {
-        case "exit":
-            bwu.isExitEntered = true;
-            break;
-        case "view-account":
-            String accDetails = bwu.accounts.getAllAccountDetails();
-            screen.viewAccount(accDetails);
-            break;
-        default:
-            throw new CommandNotFoundException();
+            case "exit":
+                bwu.isExitEntered = true;
+                break;
+            case "view-account":
+                String accDetails = bwu.accounts.getAllAccountDetails();
+                screen.viewAccount(accDetails);
+                break;
+            case "withdraw":
+                float final_bal = parseWithdrawAmt(args);
+                if(final_bal > -1) {
+                    bwu.accounts.accounts.get(0).setBalance(final_bal);
+                    screen.showBal(final_bal);
+                } else {
+                    System.out.println("You do not have sufficient Balance");
+                }
+                break;
+            default:
+                throw new CommandNotFoundException();
         }
+
     }
 
+
+
     /**
      * This method reads any existing file and add the saved data
      * into current programme

src/main/java/seedu/bankwithus/Ui.java

@@ -40,7 +40,7 @@ public void createScanner() {
 
     /**
      * Gets the next line of user input
-     * 
+     *
      * @return the next of user input
      */
 
@@ -56,13 +56,20 @@ public void closeScanner() {
         this.scanner.close();
     }
 
-    public void printLine() {System.out.println("----------------------------");}
+    public void printLine() {
+        System.out.println("----------------------------");
+    }
+
     public void viewAccount(String accDetails) {
         String name = accDetails.split(";")[0];
         String bal = accDetails.split(";")[1];
         printLine();
         System.out.println("Name: " + name);
-        System.out.println("Balance: $"+bal);
+        System.out.println("Balance: $" + bal);
         printLine();
     }
-}
+
+    public void showBal(float finalBal) {
+        System.out.println("You have $" + String.valueOf(finalBal) + " remaining!");
+    }
+}