java - 尝试制作一个简单的食谱程序

Question

我正在尝试构建一个食谱程序，要求人们提供有关食谱的信息并将其存储。 菜单位于一个刚刚运行的 case 语句中，他们为他们试图访问的东西推送任何数字。但是，每当我按下任何按钮时，它都会跳过该选项中的内容并返回到菜单。我试过调试，但它似乎识别了输入，然后又回到了菜单。这是类和它尝试访问(但不会)的第一个方法

package potluck;
import java.util.*;

import potluck.*;

public class Controller {
    private Scanner input;
    private Member member;
    private AdminMember admin;

    private final static int USER_LOGIN = 0;
    private final static int CREATE_MEMBER = 1;
    private final static int CREATE_ADMIN = 2;
    private final static int CREATE_RECIPE = 3;
    private final static int COMMENT = 4;
    private final static int DELETE_RECIPE = 5;
    private final static int EXIT = 8;

    public Controller(){
        input = new Scanner(System.in);
        startUp();//no better name to be thought of
    }

    public void startUp() {
        // TODO Auto-generated method stub
        int choice;
        do {
            this.displayMenu();
            choice = input.nextInt();
            input.nextLine();// clears carriage return
            //depending on choice takes to a different menu
            switch (choice) {
//              case USER_LOGIN:
//                  member.enterPassword();
//                  break;
        case CREATE_MEMBER: 
            new Member();
            break;
        case CREATE_ADMIN: 
            Member.addAdmin();
            break;
        case CREATE_RECIPE:
            Recipe.addRecipe();
            break;
        case COMMENT:
            Recipe.addComment();
            break;
        case DELETE_RECIPE:
            Recipe.deleteRecipe();
            break;
        case EXIT:
            System.out.println("Thanks for using our software");
            System.exit(choice);
            break;
        default:
            System.out.println("Error, Invalid selection.");
        }
    } while (choice != 8); //choice 8 exits
}
private void displayMenu() {
    System.out.println("1 Create Member");
    System.out.println("2 Create Admin Member");
    System.out.println("3 Create Recipe");
    System.out.println("4 Leave Comment");
    System.out.println("5 Delete Recipe");
    System.out.println("8 Exit");
    System.out.println("Please enter menu option, to exit enter 8");
    }
}

这是它试图访问的成员类。 包家常便饭； 导入 java.util.Scanner； 公开课成员{

 private int memberID = 0;
 private String name;
 private String alias;
 private String email;
 private String username;
 private String password;
 private Scanner scanner = new Scanner (System.in);

public void Member(){ //constructor
    memberID =+ 1;
    name = "";
    alias = "";
    email = "";
    username = "";
    password = "";

    setName();
    setAlias();
    setEmail();
    setUsername();
    setPassword();
    System.out.println("Member Created");
   }

  public  void addMember() {
     new Member();
  }

所以只是回顾一下。我现在只是想让 CREATE_MEMBER 选项起作用。无论它有什么问题，其余部分也可能有问题。

Answer 1

您没有将您的 Member 分配给您的变量:

member = new Member();

另请注意，您所谓的构造函数实际上并不是构造函数。您需要删除 void 才能使其成为一个:

public Member() { //constructor
    // code
}