无论输入是什么，while语句都会结束[重复]

Question

下面是我的代码，基本上我希望程序做的是每次按回车键时循环while语句，然后当“q”提交到控制台时，我希望程序结束。我做错了什么？有了这段代码，它只运行一次，如果我改变了

if (moreEmps != "q") break; 

到

if (moreEmps == "q") break;

那么无论输入什么它都会继续。有人可以引导我朝着正确的方向前进吗？谢谢！

    import java.text.NumberFormat;
    java.util.Scanner;
    /**
    * Input a number of hours and calculate the pay at $10.00 per hour
    * Pay time and one half for any hours over 40.
    */
    public class PayCalc
    {
    public static void main (String[] args)
    {
    // Declare constants to be used in payroll calculation
    final double RATE = 10.00;     // hourly rate
    final int REGULAR_HOURS = 40; // hours paid at regular rate

    double pay = 0.0;
    Scanner input = new Scanner (System.in);

    System.out.println("Employee Payroll Program");
    System.out.println("Press enter to begin.");

    String moreEmps = "";

    while (moreEmps != input.nextLine())
    {
         System.out.print("Enter employee name: ");
         String employee = input.next();
         System.out.print("Enter hours worked:  ");
         int hours = input.nextInt();

         if (hours > REGULAR_HOURS)

            pay = RATE * REGULAR_HOURS + (hours - REGULAR_HOURS) * RATE * 1.5;

         else
            pay = hours * RATE;

         NumberFormat formit = NumberFormat.getCurrencyInstance();
         System.out.println();
         System.out.print("Total Pay for "); 
         System.out.print(employee);
         System.out.println(" : " + formit.format(pay));

         System.out.println("Any more employees?");
         System.out.println("Press enter to input another employee's information, or q to quit.");
         moreEmps = input.next();
         moreEmps.toLowerCase();  

         if (moreEmps != "q") break;
    } 


}
}

Answer 1

您需要比较字符串，使用equals()。