Simple menu module java

Simple.java

import java.util.Scanner;
class Simple {

	public static Scanner scanner = new Scanner(System.in);
	public static String menu = "0";
	public static int N = 5;

	public static void insertData(BaseData storedData[]) {
		System.out.println("// todo insertData");
		int i = N;
		String choice;
		do {
			if (N >= 20) {
				System.out.println("#####################################################");
				System.out.println("Data at maximum");
				break;
			} else {
				BaseData newStoredData = new BaseData();
				System.out.print("Name1 : ");
				scanner.nextLine();
				newStoredData.name1 = scanner.nextLine();
				System.out.print("Name2 : ");
				newStoredData.name2 = scanner.nextLine();
				System.out.print("Name3 : ");
				newStoredData.name3 = scanner.next();
				System.out.print("Name4 : ");
				newStoredData.name4 = scanner.nextInt();

				storedData[N] = newStoredData;

				System.out.print("Want more? (y/n) : ");
				choice = scanner.next();

				N++;
			}
		} while(choice.equals("y"));
		System.out.println("-----------------------------------------------------");
		showMenu(storedData);
	}

	public static void showMenuShowData(BaseData storedData[]) {
		System.out.println("Choose: ");
		System.out.println("1. Show All Data");
		System.out.println("2. Show Data by Name1");
		System.out.println("3. Total Data by Name1");
		System.out.println("4. Back");
		System.out.print("Your Choice [1-4] : ");

		try {
			menu = scanner.next();
		} catch (java.util.InputMismatchException e) {
			menu = "0";
		}

		System.out.println("#####################################################");

		switch (menu) {
			case "1": showAllData(storedData); break;
			case "2": showDataByName1(storedData); break;
			case "3": countDataByName1(storedData); break;
			case "4": showMenu(storedData); break;
			default: 
			System.out.println("Are you kidding me?");
			showMenuAdd(storedData); 
			break;
		}
	}

	public static void showAllData(BaseData storedData[]) {
		System.out.println("// todo showAllData");
		System.out.println("#####################################################");
		showMenu(storedData);
	}

	public static void showDataByName1(BaseData storedData[]) {
		System.out.println("// todo showDataByName1");
		System.out.println("#####################################################");
		showMenu(storedData);
	}

	public static void countDataByName1(BaseData storedData[]) {
		System.out.println("// todo countDataByName1");
		System.out.println("#####################################################");
		showMenu(storedData);
	}

	public static void showMenuAdd(BaseData storedData[]) {
		System.out.println("Choose: ");
		System.out.println("1. Add Data in the Front");
		System.out.println("2. Add Data in the Middle");
		System.out.println("3. Add Data in the Last");
		System.out.println("4. Back");
		System.out.print("[1-4] : ");

		try {
			menu = scanner.next();
		} catch (java.util.InputMismatchException e) {
			menu = "0";
		}
		
		System.out.println("-----------------------------------------------------");

		switch (menu) {
			case "1": addDataAtFront(storedData); break;
			case "2": addDataAtMiddle(storedData); break;
			case "3": addDataAtLast(storedData); break;
			case "4": showMenu(storedData); break;
			default: 
				System.out.println("Are you kidding me?");
				showMenuAdd(storedData); 
				break;
		}
	}

	public static void addDataAtFront(BaseData storedData[]) {
		System.out.println("// todo addDataAtFront");
		System.out.println("-----------------------------------------------------");
		showMenu(storedData); 
	}

	public static void addDataAtMiddle(BaseData storedData[]) {
		System.out.println("// todo addDataAtMiddle");
		System.out.println("-----------------------------------------------------");
		showMenu(storedData); 
	}

	public static void addDataAtLast(BaseData storedData[]) {
		System.out.println("// todo addDataAtLast");
		System.out.println("-----------------------------------------------------");
		showMenu(storedData); 
	}

	public static void searchData(BaseData storedData[]) {
		System.out.println("// todo searchData");
		System.out.println("-----------------------------------------------------");
		showMenu(storedData);
	}

	public static void editData(BaseData storedData[]) {
		System.out.println("// todo editData");
		System.out.println("-----------------------------------------------------");
		showMenu(storedData);
	}

	public static void deleteData(BaseData storedData[]) {
		System.out.println("// todo deleteData");
		System.out.println("-----------------------------------------------------");
		showMenu(storedData);
	}

	public static void sortData(BaseData storedData[]) {
		System.out.println("// this should have submenu");
		System.out.println("// todo sortData");
		System.out.println("-----------------------------------------------------");
		showMenu(storedData);
	}

	public static void showMenu(BaseData storedData[]) {
		System.out.println("Choose: ");
		System.out.println("1. Insert Data");
		System.out.println("2. Show Data");
		System.out.println("3. Add Data *");
		System.out.println("4. Search Data");
		System.out.println("5. Edit Data");
		System.out.println("6. Delete Data");
		System.out.println("7. Sort Data");
		System.out.println("8. Exit");
		System.out.print("[1-8] : ");

		try {
			menu = scanner.next();
		} catch (java.util.InputMismatchException e) {
			menu = "0";
		}
		
		System.out.println("-----------------------------------------------------");

		switch (menu) {
			case "1": insertData(storedData); break;
			case "2": showMenuShowData(storedData); break;
			case "3": showMenuAdd(storedData); break;
			case "4": searchData(storedData); break;
			case "5": editData(storedData); break;
			case "6": deleteData(storedData); break;
			case "7": sortData(storedData); break;
			case "8": 
				System.out.println("Goodby!");
				System.exit(0); 
				break;
			default: 
				System.out.println("Are you kidding me?");
				showMenu(storedData); 
				break;
		}
	}

	public static void main(String[] args) {
		// show welcome message
		System.out.println("Welcome to My Program !!");

		BaseData storedData[] = new BaseData[20];
		for (int i = 0; i <= N-1; i++) {
			storedData[i] = new BaseData();
		}
		
		// Go
		showMenu(storedData);
	}
}

class BaseData {
	String name1, name2, name3;
	int name4;
}