added java example

resources/java.java

@@ -0,0 +1,72 @@
+package project1.ui;
+
+import static project1.umethods.SleepTime.*;
+import static project1.umethods.ScreenManipulation.*;
+
+import java.util.Scanner;
+import project1.ui.PatientMenu;
+import project1.ui.DoctorMenu;
+import project1.ui.authentication.AuthenticationMenu;
+
+/**
+ * UIMenu
+ */
+public class UIMenu {
+
+    //months is not a var, is a constant becuase of `final`
+    public static final int year = 2021;
+
+    public static void showMenu(){
+        Scanner keyboard = new Scanner(System.in);
+        int uResponse = 0;
+        String test = "";
+
+        do {
+            System.out.printf("\t----Menu----\n\n");
+            int time = 50;
+            sleepText("1) Doctors", time); sleepText("2) Patient", time); sleepText("0) Exit", time);
+            System.out.printf("\nType here 👉 ");
+
+            do {
+                try {
+                    try {
+                        test = keyboard.nextLine(); //receive whatever input
+                        if (test.isEmpty()) {
+                            throw new NullPointerException("var is empty");
+                        } else {
+                            sleepFor(500);
+                            uResponse = Integer.parseInt(test); //parse that input into an Integer (not an int)
+                            break;
+                        }
+                    } catch(NullPointerException e) {
+                        System.out.printf("\nRemember you must type at least ony number from 0-2\n"); showMenu();
+                    }
+                } catch (NumberFormatException e) {
+                    //TODO: handle exception
+                    clearScreen();
+                    System.out.printf("\n\nERROR (❌): this program only accepts integers\n\n");
+                    showMenu();
+                }
+            } while (true);
+
+            switch (uResponse) {
+                case 0:
+                    System.out.printf("Goodbye! Hope I helped!\n");
+                    System.exit(0);
+                    break;
+                case 1:
+                    clearScreen();
+                    if (AuthenticationMenu.startAuthMenu(1) == true) { DoctorMenu.showDoctorMenu(); } else { System.out.printf("Something went wrong :)\n"); }
+                    break;
+                case 2:
+                    clearScreen();
+                    if (AuthenticationMenu.startAuthMenu(2) == true) { PatientMenu.showPatientMenu(); } else { System.out.printf("Something went wrong :)\n"); }
+                    //PatientMenu.showPatientMenu();
+                    break;
+                default:
+                    System.out.print("\033[H\033[2J"); System.out.flush();
+                    System.out.printf("ERROR (❌): command not recognized\ntry again ↓\n");
+            }
+        } while (uResponse != 0);
+    }
+}