Boxing 15 - ported to java

15 Boxing/java/Basic.java

@@ -0,0 +1,45 @@
+import java.util.Scanner;
+
+/**
+ * It provide some kind of BASIC language behaviour simulations.
+ */
+final class Basic {
+
+    public static int randomOf(int base) {
+        return (int)Math.round(Math.floor(base* Math.random() + 1));
+    }
+
+    /**
+     * The Console "simulate" the message error when input does not match with the expected type.
+     * Specifically for this game if you enter an String when and int was expected.
+     */
+    public static class Console {
+        private final Scanner input = new Scanner(System.in);
+
+        public String readLine() {
+            return input.nextLine();
+        }
+
+        public int readInt() {
+            int ret = -1;
+            boolean failedInput = true;
+            do {
+                boolean b = input.hasNextInt();
+                if (b) {
+                    ret = input.nextInt();
+                    failedInput = false;
+                } else {
+                    input.next(); // discard read
+                    System.out.print("!NUMBER EXPECTED - RETRY INPUT LINE\n? ");
+                }
+
+            } while (failedInput);
+
+            return ret;
+        }
+
+        public void print(String message, Object... args) {
+            System.out.printf(message, args);
+        }
+    }
+}