英文:
Boolean with multiple classes
问题
我正试图进行一个包含三个类的程序，并传递一个布尔值来预订一个房间。我有驱动程序、建筑物和房间程序。我将预订设置为false，但我无法弄清楚在已设置为true时如何打印出文本语句。我认为我要么在从驱动程序通过类传递布尔值方面做错了，要么漏掉了某些东西。我已经在建筑物类中的reserveRoom中尝试使用if语句来查看它是否已经为true以打印一个语句，无论我选择哪种方式都不起作用。
任何帮助将不胜感激。
谢谢。
从将布尔值发送到建筑物程序的驱动程序：
System.out.print("您想预订哪个房间？");
System.out.print(building);
System.out.print("预订：");
reservNum = input.nextInt();
building.reserveRoom(reserve, reservNum);
从我的建筑物类：
public void reserveRoom(boolean reserve, int count)
{
//类常量
//类变量
/*****************************************************/
room[count].updateReserve(reserve);
} // 结束
从我的房间类：
public void updateReserve(boolean newReserve)
{
//类常量
//类变量
/*****************************************************/
if (newReserve == false)
{
roomAvail = true;
}
else
{
roomAvail = false;
}
} // 结束
英文:
I am trying to take a 3 class program and pass a boolean for reserving a room. I have driver program, building, room programs. I set the reserve to false and I can't figure out how to print out a text statement when it's already set to true. I think I am either doing the passing of the boolean through the classes from the driver wrong or missing something. I have played with reserveRoom in building class with an if statement to see if it's already true to print a statement and no matter which way I go it doesn't work.
Any help would be appreciated.
Thank you.
From my driver program that sends the boolean to the building program
System.out.print ("Which room would you like to reserve?");
System.out.print (building);
System.out.print ("reserve: ");
reservNum = input.nextInt();
building.reserveRoom(reserve, reservNum);
From my building class.
public void reserveRoom (boolean reserve, int count)
{
//class constant
//class variables
/*****************************************************/
room [count].updateReserve(reserve);
} // end
From the room class.
public void updateReserve(boolean newReserve)
{
//class constant
//class variables
/*****************************************************/
if (newReserve == false)
{
roomAvail = true;
}
else
{
roomAvail = false;
}
} // END
答案1
得分: 1
以下是翻译好的内容：
嗯，你的问题中有一些信息不完整，不过我认为你在寻找以下内容：
public void updateReserve(boolean newReserve) {
if(newReserve && !roomAvail) {
System.out.println("对不起，这个房间已经被预订");
} else {
roomAvail = !newReserve;
}
}
英文:
Well, there is some information missing in your question, however it think you are looking for:
public void updateReserve(boolean newReserve) {
if(newReserve && !roomAvail) {
System.out.println("Sorry this room is taken")
} else {
roomAvail = !newReserve;
}
}
答案2
得分: 0
根据我对您问题的理解，以下是我整理出的代码部分的翻译：
public class Reservation {
public static void main(String args[]) {
Building building = new Building(20);
boolean reserve = false;
System.out.println("您想要预订哪个房间？");
System.out.println(building);
System.out.println("reserve: ");
int reservNum = 2;
building.reserveRoom(reserve, reservNum);
System.out.println("是否已预订？：" + building.getRoom(reservNum).getRoomAvail());
}
}
class Building {
Room room[];
public Building(int numOfRooms) {
room = new Room[numOfRooms];
for (int i = 0; i < numOfRooms; i++) {
room[i] = new Room();
}
}
public String toString() {
return "这栋楼有 " + room.length + " 个房间";
}
public Room getRoom(int roomNum) {
return room[roomNum];
}
public void reserveRoom(boolean reserve, int count) {
room[count].updateReserve(reserve);
}
}
class Room {
boolean roomAvail;
public boolean getRoomAvail() {
return roomAvail;
}
public void updateReserve(boolean newReserve) {
if (newReserve == false) {
roomAvail = true;
} else {
roomAvail = false;
}
}
}
请注意，我只对代码部分进行了翻译。如果您有任何问题或需要进一步的帮助，请随时提问。
英文:
With whatever i could understand about your question this is what i came up with -
public class Reservation {
public static void main(String args[]) {
Building building = new Building(20);
boolean reserve= false;
System.out.println("Which room would you like to reserve?");
System.out.println(building);
System.out.println("reserve: ");
int reservNum = 2;
building.reserveRoom(reserve, reservNum);
System.out.println("Is Reserved?:"+building.getRoom(reservNum).getRoomAvail());
}
}
class Building {
Room room[];
public Building(int numOfRooms) {
room = new Room[numOfRooms];
for(int i=0; i<numOfRooms; i++) {
room[i] = new Room();
}
}
public String toString() {
return "This Building has "+room.length+"rooms";
}
public Room getRoom(int roomNum){
return room[roomNum];
}
public void reserveRoom (boolean reserve, int count)
{
//class constant
//class variables
/*****************************************************/
room [count].updateReserve(reserve);
} // end
}
class Room {
boolean roomAvail;
public boolean getRoomAvail() {
return roomAvail;
}
public void updateReserve(boolean newReserve)
{
//class constant
//class variables
/*****************************************************/
if (newReserve == false)
{
roomAvail = true;
}
else
{
roomAvail = false;
}
} // END
}
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