Question

我的程序的目标是允许用户输入最多100个人名和100个汽车名。然后用户可以注册＆＃34;通过让这些人指向那辆车，向他/她希望的人们开车。

我想我的第一个问题是，获取用户输入字符串并将其放入数组的最佳方式是什么？那么使用寄存器功能的最佳方法是什么，以便用户指定的人指向特定的汽车？任何帮助非常感谢！（此作业不允许使用向量）

＆＃13;

class Person{
public:
    Person();
    void Register(Car& theirCar);
    
private:
    string personName;
};

class Car{
public:
    Car();
    
private:
    string carName;
};

Person::Person()
{
    //Set to null
}

Car::Car()
{
    //Set to null
}

int main()
{
    Car cars[101];
    Person persons[101];
    char selection;

    while(1)
    {
        cout << "Currently looking at:\n";
        cout << "Person: " << endl;
        cout << "In car: " << endl;
        cout << "Do you want to (p) make a new person, (c) make a new car,\n";
        cout << "(f) find a person, (r) register a person to a car, or (q) quit\n";

        cin >> selection;

        if(selection == 'p')
        {
             cout << "What is this person's name?\n";
             
        }

        if(selection == 'c')
        {
            cout << "What is this car's name?\n";
        }

        if(selection == 'f')
        {
            cout << "Which person do you want to find?\n";
        }

        if(selection == 'r')
        {
            cout << "Which car do you wish to register to this person?\n";
        }

        if(selection == 'q')
        {
            return(0);
        }
    }

}

＆＃13;

Answer 1

这不是一个完整的答案，但根据评论中的讨论是一个开始的地方。它试图提供一个相对最小（但完整）的例子，说明对象实例如何存储指向另一个对象的指针。

public class KeystoreLoad {

    public static void main(String[] args) throws Exception {
      char[] password = "nokia123".toCharArray();
      String alias = "/btsmed-1/certh-1/necert-1";

      KeyStore keystore = KeyStore.getInstance("JKS");

      keystore.load(null, null);

      FileInputStream fIn = new FileInputStream("d://keystore/keystore.jks");

      keystore.load(fIn, password);

      X509Certificate[] certs1 = (X509Certificate[]) keystore.getCertificateChain(alias);
      System.out.println(Arrays.toString(certs1));

    }

}

使用从一个数组类到另一个数组类的指针

1 个答案: