Question

有人能告诉我为什么我会收到一个名为不兼容类型的错误吗？这是完整错误：PayrollTest.java:26: error: incompatible types: possible lossy conversion from double to int.

01: import java.util.Scanner;
02:
03: public class PayrollTest{
04:
05:     public static void assignEmployeeHoursAndPayrates( Payroll payrollObject ) {
06:         Scanner keyboard = new Scanner( System.in );
07:         int employeeHours;
08:         double employeePayRate;
09:
10:         for( int employeeIndex = 0; employeeIndex < payrollObject.getAllEmployeeIds().length; employeeIndex++ ) {
11:             System.out.println( "Please enter the hours for employee " + payrollObject.getAllEmployeeIds()[ employeeIndex ] );
12:             employeeHours = keyboard.nextInt();
13:             while( employeeHours < 0 ) {
14:                 System.out.println( "Please enter POSITIVE hours for employee " +
15:                                    payrollObject.getAllEmployeeIds()[ employeeIndex ] );
16:                 employeeHours = keyboard.nextInt();
17:             }
18:             payrollObject.setEmployeeHours( employeeHours, employeeIndex );
19:             System.out.println( "What's the payrate for employee " + payrollObject.getAllEmployeeIds()[ employeeIndex ] );
20:             employeePayRate = keyboard.nextDouble();
21:             while( employeePayRate < 6.00 ) {
22:                 System.out.println( "What's the payrate for employee " +
23:                                    payrollObject.getAllEmployeeIds()[ employeeIndex ] + "( $6 or ABOVE please)" );
24:                 employeePayRate = keyboard.nextDouble();
25:             }
26:             payrollObject.setEmployeePayRate( employeePayRate, employeeIndex );
27:         }
28:     }
29:
30:     public static void displayEmployeeWages( Payroll payrollObject) {
31:         for( int employeeIndex = 0; employeeIndex < payrollObject.getAllEmployeeIds().length; employeeIndex++ ) {
32:             System.out.println( "The employee with id number " + payrollObject.getAllEmployeeIds()[ employeeIndex ] +
33:                                " worked for " + payrollObject.getAllEmployeeHours()[ employeeIndex ] +
34:                                " hours and earned " +
35:                                String.format( "$%,.2f" , payrollObject.getAllEmployeeWages()[ employeeIndex ] ) );
36:         }
37:     }
38:
39:     public static void main( String [ ] args ) {
40:         Payroll employeeInfo = new Payroll();
41:         assignEmployeeHoursAndPayrates( employeeInfo );
42:         employeeInfo.calculateWages();
43:         displayEmployeeWages( employeeInfo );
44:
45:         int singleEmployeeId = 7895122;
46:
47:         if( employeeInfo.getEmployeeWagesById( singleEmployeeId ) != -1 ) {
48:             System.out.println( "The single employee with id " + singleEmployeeId + " earned " +
49:                                String.format( "$%,.2f", employeeInfo.getEmployeeWagesById( singleEmployeeId ) ) );
50:         } else{
51:             System.out.println( "The single employee with id " + singleEmployeeId + " wasn't found" );
52:         }
53:     }
54: }

Answer 1

可能的解决方法

在薪资课程中，转到方法 setEmployeePayRate（）

现在这样做。将 int 更改为 double

void setEmployeePayRate(double employeePayRate, int employeeIndex)
{
 // your code goes here
}

您还需要在方法

中将一些变量从int更改为double

错误：不兼容的类型？

1 个答案: