(feat) add small menu asking user which section to run

week1.java

@@ -5,10 +5,40 @@ import java.util.concurrent.ThreadLocalRandom;
 
 class runLabs {
     public static void main(String[] args) {
-        // new Lab4();
-        // new Lab5();
-        new Lab6();
-        // new Lab7();
+        int choice = labChoice();
+        switch (choice) {
+        case 4:
+            new Lab4();
+            break;
+        case 5:
+            new Lab5();
+            break;
+        case 6:
+            new Lab6();
+            break;
+        case 7:
+            new Lab7();
+            break;
+        }
+    }
+
+    public static int labChoice() {
+        Scanner userInput = new Scanner(System.in);
+        System.out.println(String.format("Please enter a lab number (4-7) or q/quit to quit"));
+        while (true) {
+            if (userInput.hasNextInt()) {
+                int userChoice = userInput.nextInt();
+                userInput.nextLine();
+                if ((userChoice >= 4) && (userChoice <= 7)) {
+                        return userChoice;
+                    }
+            } else if (userInput.hasNext()) {
+                String userString = userInput.nextLine();
+                if ((userString.equals("q")) || (userString.equals("quit"))) {
+                    System.exit(0);
+                }
+            }
+        }
     }
 }
 
@@ -261,9 +291,9 @@ class Lab4 extends Lab {
 class Lab5 extends Lab {
     public Lab5() {
         super(5);
-        // new five1();
-        // new five5();
-        // new five6();
+        //new five1();
+        new five5();
+        new five6();
         new five7();
     }
 
@@ -308,7 +338,7 @@ class Lab5 extends Lab {
             double radius = kbIn.nextDouble();
             kbIn.nextLine();
             summariseCircle(radius);
-            kbIn.close();
+            // kbIn.close();
         }
 
         public void summariseCircle(double radius) {
@@ -356,7 +386,7 @@ class Lab5 extends Lab {
 
             System.out.println(String.format("Your name is %s and your age is %d",
                                              userName, userAge));
-            kbIn.close();
+            // kbIn.close();
             inputOps.close();
         }
     }
@@ -396,7 +426,7 @@ class Lab5 extends Lab {
                                          userDOB.getTime(),
                                          Lab4.yearsOld(today, userDOB)));
 
-            userInput.close();
+            // userInput.close();
             processInput.close();
 
         }
@@ -416,7 +446,7 @@ class Lab6 extends Lab {
         new six7();
         new six8();
         new six9();
-        //  new six5();
+        new six5();
     }
 
     /**
@@ -484,7 +514,7 @@ class Lab6 extends Lab {
                 if (guess == chosenNumber) {
                     System.out.println(String.format("\nYou guessed right after %d %s! It was indeed %d",
                                                      i+1, guesses, chosenNumber));
-                    userInput.close();
+                    // userInput.close();
                     return;
                 }
                 guesses = "guesses"; // didn't get it on the first try
@@ -509,7 +539,7 @@ class Lab6 extends Lab {
             }
 
             System.out.println(String.format("\nThe answer was: %d. Better luck next time!", chosenNumber));
-            userInput.close();
+            // userInput.close();
 
         }
 
@@ -660,7 +690,7 @@ class Lab6 extends Lab {
                 if ((choiceNumber < 0) || (choiceNumber > 2)) {
                     continue;
                 } else {
-                    userInput.close();
+                    // userInput.close();
                     Throw[] throwsArray = Throw.values();
                     return throwsArray[choiceNumber];
                 }
@@ -669,13 +699,13 @@ class Lab6 extends Lab {
                 switch (choiceString.toLowerCase()) {
                     case "rock":
                     case "stone":
-                        userInput.close();
+                        // userInput.close();
                         return Throw.ROCK;
                     case "paper":
-                        userInput.close();
+                        // userInput.close();
                         return Throw.PAPER;
                     case "scissors":
-                        userInput.close();
+                        // userInput.close();
                     return Throw.SCISSORS;
                 case "q":
                 case "quit":