java - 重复程序帮助？

Question

好吧，我的程序又陷入了僵局。我需要重复一遍，但我不明白我在课文中读到的关于如何做的内容。它只涵盖重复值，如成绩簿程序。无论如何，我需要程序不断重复，直到用户输入“停止”作为员工姓名。到目前为止，这是我的代码:

package payroll_program_2; 导入 java.util.Scanner;

    public class payroll_program_2 {
        public static void main(String[] args) {

        Scanner input = new Scanner( System.in );
        float hours;                                           
        float rate;                                              
        String name;
        float total_pay;


    System.out.println("Please enter employee name");       
        name = input.nextLine();
            if("stop".equals(name))
            { return;
            }

    System.out.println("Please enter hourly rate");             
        rate = input.nextFloat();                               
        if (rate <0)                                             
            {                                                     
                System.out.println("Pay rate cannot be negative");
                System.out.println("Please enter hourly rate");
                rate = input.nextFloat();
            }
    System.out.println("Please enter hours worked");            
        hours = input.nextFloat();                               
         if (hours <0)
            {
                System.out.println("Hours cannot be negative");
                System.out.println("Please enter hours worked");
                hours = input.nextFloat();
            }
    System.out.println("Employee's total pay for this week");  
        total_pay = hours*rate;                                   

    System.out.printf("The total pay for %s is $%.2f\n", name, total_pay);        


        }

Answer 1

您需要添加一个while 循环或for 循环，如:

while (true) {
   // .. read some input ...
   if ( /* input is "stop" */ ) {
      break; // this causes the loop to exit
   }
}