Java 如何通过将try-catch块放入do-while循环中来捕获异常

即使在发现输入类型不正确的

InputMismatchException

后，我仍想继续执行

do while

循环。我试着把它放到循环中，但它给了我一个错误。我只想知道如何通过在

try catch

块中放置

try catch来继续
do while
循环

到目前为止，我得到了这个：

package constructcompleteprogram;

import java.util.Scanner;

/**
 * Returns the fuel economy by measuring the number of passengers, fuel
 * capacity, miles per gallon and range according by the users input.
 *
 * @author sandeepshahi
 * @version 1.0
 * @since 2015-04-15
 * @see Vehicle
 */
/**
 *
 * @param passenger This is the first parameter to the void method
 * @param mpg This is the second parameter to the void method
 * @param range This is the third parameter to the void method
 *
 * @return pass This method holds its argument and let the user input number of
 * passenger.
 * @return fuelCap This method holds its argument and let the user input the
 * fuel capacity.
 * @return milesPer This method holds its argument and let the user to input the
 * miles per gallon.
 * @retrun range This method calculates the range of the vehicle.
 */
class Vehicle {
    Scanner input = new Scanner(System.in);
    int passenger;
    double fuelcap;
    double mpg;
    double range;
    static int car;

    void pass() {
        System.out.println("   enter the Number of passenger");
        passenger = input.nextInt();
        System.out.println("you entered: " + passenger);
    }

    void fuelCap() {
        System.out.println("   enter fuel capacity in integer, please");
        fuelcap = input.nextInt();
        System.out.println("you entered: " + fuelcap);
    }

    void milesPer() {
        System.out.println("   enter miles for gamallon please");
        mpg = input.nextDouble();
        System.out.println("  you entered: " + mpg);
    }

    void range() {
        System.out.println("   The car has a range of " + (fuelcap * mpg) + " miles");
    }
}


循环不起作用，因为一旦插入错误的输入，就会在进一步的
car.nextInt（）
语句之间传递。在第一次（以及每次连续）不匹配后，不会从控制台删除/取消不正确的输入。因此，您需要添加一行，这将“消耗”它，例如：

try {
    car = input.nextInt();
} catch (Exception e) {
    input.next();          // <-- this line "consumes" input
    System.out.println(e);
}

试试看{
car=input.nextInt（）；
}捕获（例外e）{
input.next（）；//您应该如何做什么？您提供了什么输入、得到了什么输出以及希望得到什么输出？
try {
    car = input.nextInt();
} catch (Exception e) {
    input.next();          // <-- this line "consumes" input
    System.out.println(e);
}