我知道以前已经回答过这样的问题，但是我似乎找不到任何分号。那么，我的代码专家怎么了？请帮忙。
我的任务是：开发一个Java应用程序，以计算许多不同类型的员工的月薪。雇员类型是在基于父基类Employee的子类数组中创建的。为每个类和驱动程序类提供了初始代码。以下是我为主要班级准备的内容。当我将inputInfo方法放在main之外，然后尝试使用它时，我收到大量错误消息，例如：
error: cannot find symbol
earnings = input.nextDouble();
^
symbol: variable earnings
location: class PayrollSystemTest
PayrollSystemTest.java:68: error: cannot find symbol
earnings = input.nextDouble();
^
symbol: variable input
location: class PayrollSystemTest
PayrollSystemTest.java:69: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable dob
location: class PayrollSystemTest
PayrollSystemTest.java:69: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable month
location: class PayrollSystemTest
PayrollSystemTest.java:69: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable day
location: class PayrollSystemTest
PayrollSystemTest.java:69: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable year
location: class PayrollSystemTest
PayrollSystemTest.java:70: error: cannot find symbol
SalariedEmployee salariedEmployee1 = new SalariedEmployee(firstName, lastName, socialNum, dob, earnings);
^
symbol: variable firstName
location: class PayrollSystemTest
PayrollSystemTest.java:70: error: cannot find symbol
SalariedEmployee salariedEmployee1 = new SalariedEmployee(firstName, lastName, socialNum, dob, earnings);
^
symbol: variable lastName
location: class PayrollSystemTest
PayrollSystemTest.java:70: error: cannot find symbol
SalariedEmployee salariedEmployee1 = new SalariedEmployee(firstName, lastName, socialNum, dob, earnings);
^
symbol: variable socialNum
location: class PayrollSystemTest
PayrollSystemTest.java:70: error: cannot find symbol
SalariedEmployee salariedEmployee1 = new SalariedEmployee(firstName, lastName, socialNum, dob, earnings);
^
symbol: variable dob
location: class PayrollSystemTest
PayrollSystemTest.java:70: error: cannot find symbol
SalariedEmployee salariedEmployee1 = new SalariedEmployee(firstName, lastName, socialNum, dob, earnings);
^
symbol: variable earnings
location: class PayrollSystemTest
PayrollSystemTest.java:75: error: cannot find symbol
earnings = input.nextDouble();
^
symbol: variable earnings
location: class PayrollSystemTest
PayrollSystemTest.java:75: error: cannot find symbol
earnings = input.nextDouble();
^
symbol: variable input
location: class PayrollSystemTest
PayrollSystemTest.java:76: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable dob
location: class PayrollSystemTest
PayrollSystemTest.java:76: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable month
location: class PayrollSystemTest
PayrollSystemTest.java:76: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable day
location: class PayrollSystemTest
PayrollSystemTest.java:76: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable year
location: class PayrollSystemTest
PayrollSystemTest.java:77: error: cannot find symbol
SalariedEmployee salariedEmployee2 = new SalariedEmployee(firstName, lastName, socialNum, dob, earnings);
^
symbol: variable firstName
location: class PayrollSystemTest
PayrollSystemTest.java:77: error: cannot find symbol
SalariedEmployee salariedEmployee2 = new SalariedEmployee(firstName, lastName, socialNum, dob, earnings);
^
symbol: variable lastName
location: class PayrollSystemTest
PayrollSystemTest.java:77: error: cannot find symbol
SalariedEmployee salariedEmployee2 = new SalariedEmployee(firstName, lastName, socialNum, dob, earnings);
^
symbol: variable socialNum
location: class PayrollSystemTest
PayrollSystemTest.java:77: error: cannot find symbol
SalariedEmployee salariedEmployee2 = new SalariedEmployee(firstName, lastName, socialNum, dob, earnings);
^
symbol: variable dob
location: class PayrollSystemTest
PayrollSystemTest.java:77: error: cannot find symbol
SalariedEmployee salariedEmployee2 = new SalariedEmployee(firstName, lastName, socialNum, dob, earnings);
^
symbol: variable earnings
location: class PayrollSystemTest
PayrollSystemTest.java:82: error: cannot find symbol
grossSales = input.nextDouble();
^
symbol: variable grossSales
location: class PayrollSystemTest
PayrollSystemTest.java:82: error: cannot find symbol
grossSales = input.nextDouble();
^
symbol: variable input
location: class PayrollSystemTest
PayrollSystemTest.java:84: error: cannot find symbol
commissionRate = input.nextDouble();
^
symbol: variable commissionRate
location: class PayrollSystemTest
PayrollSystemTest.java:84: error: cannot find symbol
commissionRate = input.nextDouble();
^
symbol: variable input
location: class PayrollSystemTest
PayrollSystemTest.java:85: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable dob
location: class PayrollSystemTest
PayrollSystemTest.java:85: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable month
location: class PayrollSystemTest
PayrollSystemTest.java:85: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable day
location: class PayrollSystemTest
PayrollSystemTest.java:85: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable year
location: class PayrollSystemTest
PayrollSystemTest.java:86: error: cannot find symbol
CommissionEmployee commissionEmployee = new CommissonEmployee(firstName, lastName, socialNum, dob, grossSales, commissonRate);
^
symbol: class CommissonEmployee
location: class PayrollSystemTest
PayrollSystemTest.java:86: error: cannot find symbol
CommissionEmployee commissionEmployee = new CommissonEmployee(firstName, lastName, socialNum, dob, grossSales, commissonRate);
^
symbol: variable firstName
location: class PayrollSystemTest
PayrollSystemTest.java:86: error: cannot find symbol
CommissionEmployee commissionEmployee = new CommissonEmployee(firstName, lastName, socialNum, dob, grossSales, commissonRate);
^
symbol: variable lastName
location: class PayrollSystemTest
PayrollSystemTest.java:86: error: cannot find symbol
CommissionEmployee commissionEmployee = new CommissonEmployee(firstName, lastName, socialNum, dob, grossSales, commissonRate);
^
symbol: variable socialNum
location: class PayrollSystemTest
PayrollSystemTest.java:86: error: cannot find symbol
CommissionEmployee commissionEmployee = new CommissonEmployee(firstName, lastName, socialNum, dob, grossSales, commissonRate);
^
symbol: variable dob
location: class PayrollSystemTest
PayrollSystemTest.java:86: error: cannot find symbol
CommissionEmployee commissionEmployee = new CommissonEmployee(firstName, lastName, socialNum, dob, grossSales, commissonRate);
^
symbol: variable grossSales
location: class PayrollSystemTest
PayrollSystemTest.java:86: error: cannot find symbol
CommissionEmployee commissionEmployee = new CommissonEmployee(firstName, lastName, socialNum, dob, grossSales, commissonRate);
^
symbol: variable commissonRate
location: class PayrollSystemTest
PayrollSystemTest.java:91: error: cannot find symbol
grossSales = input.nextDouble();
^
symbol: variable grossSales
location: class PayrollSystemTest
PayrollSystemTest.java:91: error: cannot find symbol
grossSales = input.nextDouble();
^
symbol: variable input
location: class PayrollSystemTest
PayrollSystemTest.java:93: error: cannot find symbol
commissionRate = input.nextDouble();
^
symbol: variable commissionRate
location: class PayrollSystemTest
PayrollSystemTest.java:93: error: cannot find symbol
commissionRate = input.nextDouble();
^
symbol: variable input
location: class PayrollSystemTest
PayrollSystemTest.java:95: error: cannot find symbol
baseSalary = input.nextDouble();
^
symbol: variable baseSalary
location: class PayrollSystemTest
PayrollSystemTest.java:95: error: cannot find symbol
baseSalary = input.nextDouble();
^
symbol: variable input
location: class PayrollSystemTest
PayrollSystemTest.java:96: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable dob
location: class PayrollSystemTest
PayrollSystemTest.java:96: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable month
location: class PayrollSystemTest
PayrollSystemTest.java:96: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable day
location: class PayrollSystemTest
PayrollSystemTest.java:96: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable year
location: class PayrollSystemTest
PayrollSystemTest.java:97: error: cannot find symbol
BasePlusCommissionEmployee basePlusCommissionEmployee = new BasePlusCommissionEmployee(firstName, lastName, socialNum, dob, grossSales, commissionRate, baseSalary);
^
symbol: variable firstName
location: class PayrollSystemTest
PayrollSystemTest.java:97: error: cannot find symbol
BasePlusCommissionEmployee basePlusCommissionEmployee = new BasePlusCommissionEmployee(firstName, lastName, socialNum, dob, grossSales, commissionRate, baseSalary);
^
symbol: variable lastName
location: class PayrollSystemTest
PayrollSystemTest.java:97: error: cannot find symbol
BasePlusCommissionEmployee basePlusCommissionEmployee = new BasePlusCommissionEmployee(firstName, lastName, socialNum, dob, grossSales, commissionRate, baseSalary);
^
symbol: variable socialNum
location: class PayrollSystemTest
PayrollSystemTest.java:97: error: cannot find symbol
BasePlusCommissionEmployee basePlusCommissionEmployee = new BasePlusCommissionEmployee(firstName, lastName, socialNum, dob, grossSales, commissionRate, baseSalary);
^
symbol: variable dob
location: class PayrollSystemTest
PayrollSystemTest.java:97: error: cannot find symbol
BasePlusCommissionEmployee basePlusCommissionEmployee = new BasePlusCommissionEmployee(firstName, lastName, socialNum, dob, grossSales, commissionRate, baseSalary);
^
symbol: variable grossSales
location: class PayrollSystemTest
PayrollSystemTest.java:97: error: cannot find symbol
BasePlusCommissionEmployee basePlusCommissionEmployee = new BasePlusCommissionEmployee(firstName, lastName, socialNum, dob, grossSales, commissionRate, baseSalary);
^
symbol: variable commissionRate
location: class PayrollSystemTest
PayrollSystemTest.java:97: error: cannot find symbol
BasePlusCommissionEmployee basePlusCommissionEmployee = new BasePlusCommissionEmployee(firstName, lastName, socialNum, dob, grossSales, commissionRate, baseSalary);
^
symbol: variable baseSalary
location: class PayrollSystemTest
PayrollSystemTest.java:102: error: cannot find symbol
wage = input.nextDouble();
^
symbol: variable wage
location: class PayrollSystemTest
PayrollSystemTest.java:102: error: cannot find symbol
wage = input.nextDouble();
^
symbol: variable input
location: class PayrollSystemTest
PayrollSystemTest.java:104: error: cannot find symbol
hours = input.nextDouble();
^
symbol: variable hours
location: class PayrollSystemTest
PayrollSystemTest.java:104: error: cannot find symbol
hours = input.nextDouble();
^
symbol: variable input
location: class PayrollSystemTest
PayrollSystemTest.java:105: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable dob
location: class PayrollSystemTest
PayrollSystemTest.java:105: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable month
location: class PayrollSystemTest
PayrollSystemTest.java:105: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable day
location: class PayrollSystemTest
PayrollSystemTest.java:105: error: cannot find symbol
dob = new Date(month, day, year);
^
symbol: variable year
location: class PayrollSystemTest
PayrollSystemTest.java:106: error: cannot find symbol
HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, socialNum, dob, wage, hours);
^
symbol: variable firstName
location: class PayrollSystemTest
PayrollSystemTest.java:106: error: cannot find symbol
HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, socialNum, dob, wage, hours);
^
symbol: variable lastName
location: class PayrollSystemTest
PayrollSystemTest.java:106: error: cannot find symbol
HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, socialNum, dob, wage, hours);
^
symbol: variable socialNum
location: class PayrollSystemTest
PayrollSystemTest.java:106: error: cannot find symbol
HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, socialNum, dob, wage, hours);
^
symbol: variable dob
location: class PayrollSystemTest
PayrollSystemTest.java:106: error: cannot find symbol
HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, socialNum, dob, wage, hours);
^
symbol: variable wage
location: class PayrollSystemTest
PayrollSystemTest.java:106: error: cannot find symbol
HourlyEmployee hourlyEmployee = new HourlyEmployee(firstName, lastName, socialNum, dob, wage, hours);
^
symbol: variable hours
location: class PayrollSystemTest
PayrollSystemTest.java:150: error: cannot find symbol
CommissionEmployee employee = (CommissonEmployee) currentEmployee;
^
symbol: class CommissonEmployee
location: class PayrollSystemTest
69 errors
----jGRASP wedge2: exit code for process is 1.
----jGRASP: operation complete.
这是我的代码
import java.util.Scanner;
public class PayrollSystemTest
{
public static void main( String args[] )
{
Employee employees[] = new Employee[ 5 ];
int i = 0;
inputInfo();
System.out.print("What are the earnings of the salaried
employee?");
earnings = input.nextDouble();
dob = new Date(month, day, year);
SalariedEmployee salariedEmployee1 = new
SalariedEmployee(firstName, lastName, socialNum, dob,
earnings);
employees[i] = salariedEmployee1; i++;
inputInfo();
System.out.print("What are the earnings of the next salaried
employee?");
earnings = input.nextDouble();
dob = new Date(month, day, year);
SalariedEmployee salariedEmployee2 = new
SalariedEmployee(firstName, lastName, socialNum, dob,
earnings);
employees[i] = salariedEmployee2; i++;
inputInfo();
System.out.print("What are the gross sales of the commission
employee?");
grossSales = input.nextDouble();
System.out.print("What is the commission rate?");
commissionRate = input.nextDouble();
dob = new Date(month, day, year);
CommissionEmployee commissionEmployee = new
CommissonEmployee(firstName, lastName, socialNum, dob,
grossSales, commissonRate);
employees[i] = commissionEmployee; i++;
inputInfo();
System.out.print("What are the gross sales of the base plus
commission employee?");
grossSales = input.nextDouble();
System.out.print("What is the commission rate?");
commissionRate = input.nextDouble();
System.out.print("What is the base salary of the base plus
commission employee?");
baseSalary = input.nextDouble();
dob = new Date(month, day, year);
BasePlusCommissionEmployee basePlusCommissionEmployee = new
BasePlusCommissionEmployee(firstName, lastName,
socialNum,
dob, grossSales, commissionRate, baseSalary);
employees[i] = basePlusCommissionEmployee; i++;
inputInfo();
System.out.print("What is the wage of the hourly
employee?");
wage = input.nextDouble();
System.out.print("What are the hours of the hourly
employee?");
hours = input.nextDouble();
dob = new Date(month, day, year);
HourlyEmployee hourlyEmployee = new
HourlyEmployee(firstName,
lastName, socialNum, dob, wage, hours);
employees[i] = hourlyEmployee; i++;
System.out.println( "Employees processed polymorphically:\n"
);
// generically process each element in array employees
for ( Employee currentEmployee : employees )
{
System.out.println( currentEmployee ); // invokes
toString
if(currentEmployee instanceof SalariedEmployee)
{
SalariedEmployee employee = (SalariedEmployee)
currentEmployee;
double oldBaseSalary = employee.getWeeklySalary();
employee.setWeeklySalary(4 * oldBaseSalary);
System.out.printf("earned: ", employee.earnings());
}
if(currentEmployee instanceof HourlyEmployee)
{
HourlyEmployee employee = (HourlyEmployee) currentEmployee;
double oldBaseSalary = employee.getHours() *
employee.getWage();
employee.setWage(4 * oldBaseSalary);
System.out.printf("earned: ", employee.getWage());
}
if(currentEmployee instanceof CommissionEmployee)
{
CommissionEmployee employee = (CommissonEmployee)
currentEmployee;
double oldBaseSalary = employee.getGrossSales() *
employee.getCommissionRate();
employee.setGrossSales(4 * oldBaseSalary);
System.out.printf("earned: ", employee.getGrossSales());
}
// determine whether element is a BasePlusCommissionEmployee
if ( currentEmployee instanceof BasePlusCommissionEmployee )
{
// downcast Employee reference to
// BasePlusCommissionEmployee reference
BasePlusCommissionEmployee employee =
( BasePlusCommissionEmployee ) currentEmployee;
double oldBaseSalary = employee.getBaseSalary();
employee.setBaseSalary( 4 * oldBaseSalary );
System.out.printf(
"new base salary with 10%% increase is: $%,.2f\n",
employee.getBaseSalary() );
} // end if
System.out.printf(
"earned $%,.2f\n\n", currentEmployee.earnings() );
} // end for
// get type name of each object in employees array
for ( int j = 0; j < employees.length; j++ )
System.out.printf( "Employee %d is a %s\n", j,
employees[ j ].getClass().getName() );
} // end main
static void inputInfo()
{
Scanner input = new Scanner(System.in);
String firstName;
String lastName;
String socialNum;
double earnings;
int month;
int day;
int year;
double wage;
double hours;
double grossSales;
double commissionRate;
double baseSalary;
Date dob = new Date();
System.out.print("What is the first name of the employee?");
firstName = input.next();
System.out.print("What is the last name of the employee?");
lastName = input.next();
System.out.print("What is the social security number of the
employee?");
socialNum = input.next();
System.out.print("What month was the employee born?");
month = input.nextInt();
System.out.print("What day was the employee born?");
day = input.nextInt();
System.out.print("What year was the employee born?");
year = input.nextInt();
}
} // end class PayrollSystemTest
最佳答案
有三件事是错误的。
1）main是该类的方法，而inputInfo旨在是该类的方法。您不能嵌套方法定义。您需要}在main之前结束void inputInfo的正文。添加右括号，并确保所有其他括号都按预期配对。
2）所有这些数据声明看起来都应该是该类的数据成员，因此需要在main方法的声明之外。
3）void inputInfo()之后的分号错误地终止了inputInfo的定义，这使以下{ … }内容不属于任何方法，因此是非法的。删除分号。