我正在尝试创建一个运行循环,用户可以在其中输入牡蛎,进入/离开牡蛎栏,直到容量达到500。
当容量达到500时,我希望用户仍然能够输入负数(因为顾客仍然可以离开),但不能输入任何正数。不幸的是,一旦满足该条件,我就无法输入任何内容。
Scanner input = new Scanner(System.in);
int maxCapacity = 500;
int oystersIn = 0;
int oystersOut;
int currentCapacity = 0;
System.out.println("Welcome to the Half Shell Dive Bar, Capacity is 500, and there are currently "+ currentCapacity + " oysters in the bar" );
currentCapacity = 0;
do {
oystersIn=0;
System.out.println("How many oysters are coming in?");
oystersIn = input.nextInt();
currentCapacity += oystersIn;
System.out.println("Now there are " + currentCapacity + " oysters in the bar");
}
while (oystersIn + currentCapacity <= 500);
}
}
任何输入将不胜感激,谢谢!
答案 0 :(得分:1)
假设您要一直循环下去,则需要检查容量是否过大
do {
oystersIn=0;
System.out.println("How many oysters are coming in?");
oystersIn = input.nextInt();
if (oystersIn + currentCapacity >= 500) {
System.out.println("Sorry full - waiting for some one to leave");
continue;
}
if (oystersIn + currentCapacity < 0) {
System.out.println("Can't go negative");
continue;
}
currentCapacity += oystersIn;
System.out.println("Now there are " + currentCapacity + " oysters in the bar");
}
while (true);
答案 1 :(得分:0)
我建议您:-
1)运行另一个执行do的while循环,该循环需要负输入。
2)如果想要重新运行程序(如果不再有牡蛎的话),则将两个循环都置于无限循环中,并且
用“ break”从无限循环中走出来。
希望这会有所帮助