Data update

Task/Classes/Ballerina/classes.ballerina

@@ -0,0 +1,28 @@
+import ballerina/io;
+
+class Dog {
+    string name;  // field
+
+    // Initializes a Dog instance passing it a name
+    // which is stored in the 'name' field.
+    function init(string name) {
+        self.name = name;
+    }
+
+    // Function to make a noise.
+    function makeNoise() {
+        io:println("Woof!");
+    }
+}
+
+public function main() {
+    // Create a new Dog instance and assign a reference to it
+    // to the variable b.
+    Dog d = new Dog("Rover");
+
+    // Print the dog's name.
+    io:println("The dog is called ", d.name);
+
+    // Make a noise.
+    d.makeNoise();
+}

Task/Classes/Scheme/classes.scm

@@ -1,3 +1,4 @@
+(define (make-account balance)
   (define (withdraw amount)
     (if (>= balance amount)
         (begin (set! balance (- balance amount))
@@ -12,3 +13,13 @@
           (else (error "Unknown request -- MAKE-ACCOUNT"
                        m))))
   dispatch)
+
+(define acc (make-account 100))
+((acc 'withdraw) 50)
+50
+((acc 'withdraw) 60)
+"Insufficient funds"
+((acc 'deposit) 40)
+90
+((acc 'withdraw) 60)
+30