Java验证输入

在Java中是否可以检查某个输入是否在某个范围和整数之间？ 我编写了以下代码：

public void getBetAmountFromUser() {
    //Get Amount of Bet
    int x = 0;

    System.out.println("Your current pot is: " + potAmount);
    System.out.println("Enter your bet amount: ");
    x = input.nextInt();
    //Error message if bet is larger than pot and less than 0
    while (x>potAmount || x<0 || !(input.hasNextInt())){
        System.out.println("Error - cannot bet less than 0 or more than " + potAmount + "..Enter your bet amount: ");
        x = input.nextInt();
    }
    //Bet should be less than or equal to pot if 0 user quit
    if (x > 0 && x <= potAmount) {
        betAmount = x;
        potAmount = potAmount - betAmount;
    } else if (x == 0) {
        System.out.println("You end the game with pot " + potAmount);
        System.exit(0);
    } 

}

public void getBetAmountFromUser（）{
//下注
int x=0；
System.out.println（“您当前的pot是：“+potAmount”）；
System.out.println（“输入您的下注金额：”）；
x=input.nextInt（）；
//如果赌注大于pot且小于0，则显示错误消息
虽然（x>potAmount | | | x 0&&x potAmount | | | x您可以尝试使用
String
代替
int
。然后，您可以使用
Integer.parseInt（x）
再次执行
int
，因为在
执行while

String x;
String regex = "[0-9]+";  // to check the string only is made up of digits

int potAmount = 10;
Scanner input = new Scanner(System.in);

do {
    System.out.println("Please input an integer");
    x = input.next();
} while (!x.matches(regex) || Integer.parseInt(x) > potAmount || Integer.parseInt(x) < 0);

int validBet = Integer.parseInt(x);
/* .
   .
   .  *\

字符串x；
String regex=“[0-9]+”；//检查字符串是否仅由数字组成
int potAmount=10；
扫描仪输入=新扫描仪（System.in）；
做{
System.out.println（“请输入一个整数”）；
x=输入。下一步（）；
}而（！x.matches（regex）| | Integer.parseInt（x）>potmount | | Integer.parseInt（x）<0）；
int validBet=Integer.parseInt（x）；
/* .
.
.  *\
仔细检查代码，看看有什么问题
String x;
String regex = "[0-9]+";  // to check the string only is made up of digits

int potAmount = 10;
Scanner input = new Scanner(System.in);

do {
    System.out.println("Please input an integer");
    x = input.next();
} while (!x.matches(regex) || Integer.parseInt(x) > potAmount || Integer.parseInt(x) < 0);

int validBet = Integer.parseInt(x);
/* .
   .
   .  *\