enumaratedtypes

Author: viktorvoltz

EnumaratedTypes/Inputs.java

@@ -0,0 +1,36 @@
+import java.util.Random;
+
+public enum Inputs {
+    NICKEL(5), DIME(10), QUARTER(25), DOLLAR(100),
+    TOOTHPASTE(200), CHIPS(75), SODA(100), SOAP(50),
+    ABORT_TRANSACTION {
+        public int amount() { // Disallow
+            throw new RuntimeException("ABORT.amount()");
+        }
+    },
+    STOP { // This must be the last instance.
+        public int amount() { // Disallow
+            throw new RuntimeException("SHUT_DOWN.amount()");
+        }
+    };
+
+    int value; // In cents
+
+    Inputs(int value) {
+        this.value = value;
+    }
+
+    Inputs() {
+    }
+
+    int amount() {
+        return value;
+    }; // In cents
+
+    static Random rand = new Random(47);
+
+    public static Inputs randomSelection() {
+        // Don’t include STOP:
+        return values()[rand.nextInt(values().length - 1)];
+    }
+}