return to main menu

[Yani Abela]

hi there
I am currently doing a DVD Rental System that when the user runs the program, he gets to choose from the menus. My problem is that when the user enters a menu and customizes for example a client, I don't know how to go back for the main menu. This is what I have done so far;

This is the main menu

do
            {
                System.out.println("\n 1 -Clients");
                System.out.println(" 2 - SalesPersons");
                System.out.println(" 3 - DVDs");
                System.out.println(" 4 - Loans");
                System.out.println(" 5 - Load From File");
                System.out.println(" 6 - Save From File");
                System.out.println(" 7 - Exit");

Then the user chooses for example the number 1 (Clients) and the following menu is then shown:

do
                     {
                            System.out.println("\n 1 - Add a new Client");
                            System.out.println(" 2 - Delete a Client");
                            System.out.println(" 3 - Edit a Client");
                            System.out.println(" 4 - Show all Clients");
                            System.out.println(" 5 - Search for a Client");
                            System.out.println(" 6 - Return to the Main Menu");

now my problem is that I don't know what do I have to write in case 6 so that the main menu will be shown again. Can somebody please help?? Thanks

[Alex Armenteros]

My little advice.


Try encapsulation.

Put every menu inside a function like this

public class Menus{

          public void mainMenu(){
 
                   //Print options
                   //wait input
                   //Decide outcome

          }
          public void client(){
                   //print client option
                  //wait input
                  //decide outcome
                  switch(input){
                         case 6:
                             this.mainMenu();
                  }
          }
}

[Ted Smyth]

Yani Abela wrote:I am currently doing a DVD Rental System that when the user runs the program, he gets to choose from the menus. My problem is that when the user enters a menu and customizes for example a client, I don't know how to go back for the main menu.

Hi Yani! When case #6 is selected, you need to break out of that loop (typically by setting your while condition to false, see code snippet below). Without seeing your program I can't guarantee this will work, but likely this is the solution you are looking for. The "Clients" screen is a loop that was accessed from the Main Menu loop, so to return to the first loop, simply break out of the second loop.

boolean loop = true;
do {
  // Insert menu System.out.printlns here.
  switch (userInput){
  case 1: doSomething(); break;
  case 2: doSomethingElse(); break;
  // ...
  case 6: loop = false;
  }
} while (loop == true);

[Yani Abela]

hey thanks for your replies !! they helped a lot and I solved it thanks again!!