无论if语句如何自定义异常输出

Question

我正在尝试从输入提示中获取此人的姓名。获取名称长度，如果长度小于1，则抛出自定义错误抛出LineLimitException，并再次提示用户输入他们的名称。我知道我在这里投入了很多代码，但我希望它能让我想要做的事情更清楚。

LineLimitException类

     public LineLimitException(String message){
           super(message);
     }
    }

在这里我提示并存储name字段

            name = input.nextLine();
            int strSizeName = name.length();
            if(strSizeName < 1) {

I'm getting these results in the console
How many employees are there?
2
Enter employee 1's name
Name must be greater than one character. Please try again.
Enter employee 1's name  *<--- this is before I can even enter a name*
Enter employee's hourly wage *<-- prompts for hourly wage before I got the name.*

public class Driver {
    
    /**
     * defualt constructor
     */
    public Driver() {
    }

    /**
     * Main method - prompts the user for name, hours worked, and hourly salary. Stores it in a person object
     * @author 
     * @param args
     * 
     */
    
    public static void main(String[] args) throws LineLimitException{
        ArrayList<Employee> person = new ArrayList<Employee>();

        // prompt user for the total number of employees
        Scanner input = new Scanner(System.in);
        System.out.println("How many employees are there?");

        String name;
        int numEmployees = input.nextInt();

        for (int count = 1; count <= numEmployees; count++) {
            System.out.println("Enter employee " + count + "'s name");


            **name = input.nextLine();
            int strSizeName = name.length();
            if(strSizeName < 1) {
                //Why is this showing up afterI give emploee count?
                System.out.println("Name must be greater than one character. Please try again.");
                //reprompt the user for a name
                System.out.println("Enter employee " + count + "'s name");
            }else {
                continue;
            }**
            
            
            System.out.println("Enter employee's hourly wage");
            double wage = input.nextDouble();
            System.out.println("Enter how many hours worked");
            double hrsWkd = input.nextDouble();

            person.add(new Employee(name, wage, hrsWkd)); // add an employee object to the ArrayList
            printSalaryReport(person, wage, hrsWkd);
        }
        input.close();
        System.out.println("CSV File Created.");
    }

    /**
     * Method printSalaryReport - prints the employee person objects name, hours worked
     * hourly salary and gross salary to a csv file.
     * @param person in ArrayList
     * @param getHours_Worked 
     * @param getHourly_Salary 
     * @throws IncorrectFileNameException 
     */
    private static void printSalaryReport(ArrayList<Employee> person, double getHours_Worked, double getHourly_Salary) {
        String CSV_SEPARATOR = ",";
        String fileName = "employee.csv";
         try
            {
                BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(fileName), "UTF-8"));
                String Header = "Name, Hourly Salary, Hours Worked, Pay";
                bw.write(Header.toString());
                bw.newLine();
                
                for (Employee man : person)
                {
                    StringBuffer manStr = new StringBuffer();
                    manStr.append(man.getName());
                    manStr.append(CSV_SEPARATOR);
                    manStr.append(man.getHourly_Salary());
                    manStr.append(CSV_SEPARATOR);
                    manStr.append(man.getHours_Worked());
                    manStr.append(CSV_SEPARATOR);
                    manStr.append(calculateSalary(man.getHours_Worked(), man.getHourly_Salary()));
                    bw.write(manStr.toString());
                    bw.newLine();
                }
                bw.flush();
                bw.close();
                
            }
            catch (IOException err){}
            
    }

    /**
     * Method calculateSalary takes the hours worked and hourly salary and returns
     * the result of each multiplied.
     * 
     * @param getHours_Worked
     * @param getHourly_Salary
     * @return
     */
    private static Object calculateSalary(double getHours_Worked, double getHourly_Salary) {
        double salary = getHourly_Salary;
        double hoursWorked = getHours_Worked;
        double wkAmount = salary*hoursWorked;
        return wkAmount;
    }

}

Answer 1

if (strSizeName < 1) {
    System.out.println("Name must be greater than one character. Please try again.");
    count--;
    continue;
}

System.out.println("Enter employee's hourly wage");
double wage = input.nextDouble();
System.out.println("Enter how many hours worked");
// ...

这解决了你的问题吗？