所以我做了一项家庭作业，要求我做以下事情：
所以，这是我必须创建的表格的一个示例，它假设年度总销售额为100,000.00美元。所以它看起来像这样：
Total Sales Total Compensation
------------------------------------------------------------------
100,000 <<Program Calculated Value>>
105,000 <<Program Calculated Value>>
110,000 <<Program Calculated Value>>
115,000 <<Program Calculated Value>>
120,000 <<Program Calculated Value>>
125,000 <<Program Calculated Value>>
130,000 <<Program Calculated Value>>
135,000 <<Program Calculated Value>>
140,000 <<Program Calculated Value>>
145,000 <<Program Calculated Value>>
150,000 <<Program Calculated Value>>
上表就是一个例子！根据输入的年销售额而不同。
该应用程序还必须满足这些技术要求：
基本上，我是在前几周的任务之上构建的，这是为了构建一个计算销售人员年度总薪酬的应用程序。
所以，我遇到的问题是，我对此非常困惑。我收到一个错误，我将在下面显示，当我运行程序时，我得到了这个结果：
run:
This is a console based application that calculates the total annual compensation of a salesperson.
Just follow along with the prompts, and insert the correct data.
---------------------------------------------------------------------------
Enter salesperson's annual sales
/* NOTE: I INSERTED THE BELOW VALUE OF 100000 */
100000
Total annual compensation: $69000.00
0.0
$55000.00
Total Sales Total Compensation
ERROR: Please enter a valid sales amount.
Press enter to exit.
所以在while循环中我得到错误：
'void' type not allowed here
'void' type not allowed here
not a statement
----
(Alt-Enter shows hint)
此处显示：
while (annualSales <= annualSalesTable) {
System.out.println(annualSales) + "\t" + calculate.printAnnualCompensation();
annualSales = annualSales + 5000;
}
我不知道如何解决这个问题。这是代码，有两个类SalesPerson.java是主类，然后是Calculate.java：
SalesPerson.java：
package salesperson;
import java.io.IOException
import java.text.DecimalFormat;
import java.util.Scanner;
public class SalesPerson {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
System.out.println("This is a console based application that calculates the total annual compensation");
System.out.println("Just follow along with the prompts, and insert the correct data.");
System.out.println("----------------------------------------------\n");
getInput(in);
try {
System.out.println("Press Enter to exit");
System.in.read();
}
catch(IOException e) {
e.printStackTrace();
}
}
public static void getInput(Scanner in) {
Calculate calculate = new Calculate();
double annualSales;
try {
System.out.println("Enter salesperson's annual sales");
if(in.hasNextDouble()) {
annualSales = in.nextDouble();
if (annualSales == 0)
{
System.out.println("Please enter a valid annual sales amount.");
}
else
{
double tot = calculate.calcCompensation(annualSales);
DecimalFormat decFormat = new DecimalFormat(".00");
System.out.println("Total annual compensation: " + "$" + decFormat(tot));
/* NOTE: I DO NOT KNOW HOW TO GET annualSales to populate this! */
calculate.printAnnualCompensation();
System.out.println();
System.out.println("Total Sales\tTotal Compensation");
double annualSaleTable = annualSales * 1.5;
while(annualSales <= annualSaleTable) {
System.out.println(annualSales) + "\t" + calculate.printAnnualCompensation(); /* ERROR HERE */
annualSales = annualSales + 5000;
}
}
}
}
catch(Exception ex)
{
System.out.println("ERROR: Please enter a valid sales amount.");
}
}
}
这是Calculate.java类：
package salesperson;
import java.text.DecimalFormat;
public class Calculate {
private double annualSales;
private double comissionRate = 0.14;
private double fixedSalary = 55000.00;
private double salesTarget = 100000.00;
private double accelerationFactor = 1.40;
public double calcCompensation(double annualSales) {
// Sets the annual salary to multiply by commission rate and then assign the total to currentComm
double currentComm = annualSales * comissionRate;
// Adds currentComm variable to the fixSalary variable and assigns that total to the "total" variable
double total = fixedSalary + currentComm;
return total;
}
public double getCommission() {
return this.annualSales * this.comissionRate;
}
public double annualSales(double anSales) {
annualSales = anSales;
return annualSales;
}
public void printAnnualCompensation() { /* THIS IS THROWING ERROR ON MAIN CLASS */
DecimalFormat decFormat = new DecimalFormat(".00");
/**
* Total sales that is less than 80% of the target = no commission
* Total sales that is between 80% of the target and the less than the target - 14%
* Total sales that is equal or exceeds the target sales is 14% * 1.4 or 19.6%
*/
double total = this.fixedSalary;
// Getting the percentage of the target achieved
double percentage = (this.annualSales / this.salesTarget) * 100;
System.out.println(percentage);
if (percentage < 80) {
// Do nothing, don't get commission if the percentage is less than 80% of target
} else if(percentage > 80 && percentage < 100) {
// Total = annualSalary + commission
total += getCommission();
} else if (percentage >= 100) {
// total = annualSalary + (commission * accelerationFactor);
total += (getCommission() * this.accelerationFactor);
}
System.out.println("$" + decFormat + format(total));
}
}
所以，这对我来说根本不起作用，我仍然需要工作台，我无法得到。我也需要它来满足要求，但对我而言，似乎我有很多代码只是无所事事或我正在复制所有内容，但我不知道如何清理它。
我不希望你们为我做这件事，我只是需要帮助这样做，因为我变得如此迷茫和沮丧!!
感谢你们给我的任何帮助！
答案 0 :(得分：0)
此行中的错误
System.out.println(annualSales) + "\t" + calculate.printAnnualCompensation();
是您尝试使用+左侧的void操作符。你想做这样的事情：
System.out.println(annualSales + "\t" + calculate.printAnnualCompensation());