如何制作一个既能容纳字符串又能容纳整数的队列数组

Question

我必须创建一个数组，该数组将包含一个用户输入，该用户输入是3个字母的代码，后跟一个票证编号。ex(Ama-34。我该怎么做？我知道long是不正确的，我只是在模仿另一个项目。我还必须允许用户输入和操作，这是我很难做到的。这就是我目前所拥有的。。。

class QueueOrder{

//Global Variables
static Scanner orderScan = new Scanner(System.in);

//Variables
public int MaxSize;
//How to make an array hold both names and numbers??
public long[] BodaciousArray; 
public int Front;  //Track the front pointer
public int Rear;   //track the last pointer 
public int NumberOfOrders; //track the number of orders in the system

//Constructor
public QueueOrder(int size){

MaxSize = size;
BodaciousArray = new long[MaxSize];
Front = 0;
Rear = -1;
NumberOfOrders = 0;
}

//Enqueue - add to the rear of the queue
//Allow the server to add one to the array
public void Enqueue(){
long j = 0;
//Add a wrap around
if(Rear == MaxSize - 1){           
Rear = -1;
}
//Increment the rear and insert a new item
BodaciousArray[++Rear] = j;
NumberOfOrders++;
}

//Dequeue - remove one from the array
//Allow the server to remove what is next in line
public long Dequeue(){
//Get the first value and incrament the front
long temp = BodaciousArray[Front++];
//Add a wrap around
if(Front == MaxSize){
Front = 0;
}
//Remove one item
NumberOfOrders--;
return temp;                
}

//Peek at the front of the queue
//Allow the server to see what order is next
public long peekFront(){
return BodaciousArray[Front];
}

//Check to is the queue is empty
public boolean isEmpty(){
return(NumberOfOrders == 0);
}

//Check to see if the queue is full
public boolean isFull(){
return(NumberOfOrders == MaxSize);
}

//Check how many items are in the queue
public int size(){
return NumberOfOrders;
}

public void DisplayQueueOrder(){
int i;
if(Front == Rear){
System.out.println("There are no orders to fill");
}else{
for(i = Front; i < Rear; i++){
System.out.print("The current orders are: " 
+ BodaciousArray[i] + ", ");
}
}
}

Answer 1

如果你想将两者分开，并且3个字母的代码是唯一的，那么HashMap就是最好的选择：

HashMap<String, Integer> queueArray = new HashMap<String, Integer>();
queueArray.put("Ama", 34);
System.out.println(arr.get("Ama"));

输出：

34

否则，为什么不做这样的事情：

String[] tickets = {"Ama-34", "Abc-60", "Xyz-76"};
public String getTicketCode(int index) {
return tickets[index].split("-")[0];
}
public int getTicketNumber(int index) {
return Integer.parseInt(tickets[index].split("-")[1]);
}

使用方式类似：

System.out.println(getTicketCode(0));
System.out.println(getTicketNumber(0));

打印：

Ama
76