Question

我无法理解分配问题，特别是问题要求我创建五个整数...但是如果用户选择的话，我想实现一种方法使其达到5或更少。我怎样才能做到这一点？我道歉，我是Java的新手。

package realestatepropvalue;

import java.util.Scanner;
public class RealEstatePropertyValue
{
public static void main(String[] args) 
{
    Scanner sc = new Scanner ( System.in );        
    System.out.println ( "Hello friend, you will enter a series "
            + "of fields that'll calculate your Real Estate Property Value.");

    System.out.print ("Please enter a Street Number ");
    String streetnum = sc.next();
    sc.nextLine();
    System.out.println ("You entered the Street Number, " +streetnum );

    System.out.print ( "Please enter a Street Name ");
    String streetnam = sc.nextLine();
    System.out.println ("You entered the Street Name, " + streetnam +   " " );

    System.out.print ("Please enter the number of rooms! (Up to 5!) ");

    int roomcount = sc.nextInt();

    String[] places = new String[5];
        for(int i = 0; i < places.length; i++) {
        places[i] = "Place Number: " + i;
        }

        sc.nextLine();

    System.out.println("You said that there were " + roomcount + " rooms!");

    System.out.print ("Please enter the types of rooms (up to " +roomcount+ ") that fill up the " + roomcount + " rooms!\n"
            + "(Rooms like Living, Dining, Bedroom1-2, Kitchen, Bathroom, etc!) \n ") ;

感谢您的帮助！

Answer 1

您可以将输入放在一个循环中，直到满足您要求的要求，然后将数组的大小设置为输入：

System.out.print ("Please enter the number of rooms! (Up to 5!) ");

while(true){
    roomCount = sc.nextInt();
    if(roomCount <= 5 && roomCount > 0){
        break;
    }else{
        System.out.println("Invalid amount of rooms");
    }
}

String[] places = new String[roomCount];

如何请求用户选择五个或更少的变量来定义？

1 个答案: