销售员工资计算（Sales Commissions）

代码如下：

package example;
//JHTP Exercise 7.10: Sales Commissions
//by pandenghuang@163.com
/**(Sales Commissions) Use a one-dimensional array to solve the following problem: A company
pays its salespeople on a commission basis. The salespeople receive $200 per week plus 9% of
their gross sales for that week. For example, a salesperson who grosses $5,000 in sales in a week receives
$200 plus 9% of $5,000, or a total of $650. Write an application (using an array of counters)
that determines how many of the salespeople earned salaries in each of the following ranges (assume
that each salesperson’s salary is truncated to an integer amount):
a) $200–299
b) $300–399
c) $400–499
d) $500–599
e) $600–699
f) $700–799
g) $800–899
h) $900–999
i) $1,000 and over
Summarize the results in tabular format.*/
import java.util.Scanner;

public class SalesCommission
{
public static int calSalary(double grossSales){
int salary=0;

salary=200+(int)(grossSales*0.09);
return salary;
}

public static void main(String[] args)
{
double grossSales=0.0;
double totalGrossSales=0.0;
int salary=0;
int totalSalary=0;
int count=0;
int[] frequency=new int[9];

Scanner input=new Scanner(System.in);

do {
System.out.print("请输入下一位销售员当月的销售总额(整数，输入-1退出)：");
grossSales=input.nextDouble();
if(grossSales==-1)
System.out.print("录入已结束。\n");
else
{
salary=calSalary(grossSales);
if (salary>=1000){
++frequency[0];
++count;
totalSalary+=salary;
totalGrossSales+=grossSales;}
else if(salary>=900){
++frequency[1];
++count;
totalSalary+=salary;
totalGrossSales+=grossSales;}
else if(salary>=800){
++frequency[2];
++count;
totalSalary+=salary;
totalGrossSales+=grossSales;}
else if(salary>=700){
++frequency[3];
++count;
totalSalary+=salary;
totalGrossSales+=grossSales;}
else if(salary>=600){
++frequency[4];
++count;
totalSalary+=salary;
totalGrossSales+=grossSales;}
else if(salary>=500){
++frequency[5];
++count;
totalSalary+=salary;
totalGrossSales+=grossSales;}
else if(salary>=400){
++frequency[6];
++count;
totalSalary+=salary;
totalGrossSales+=grossSales;}
else if(salary>=300){
++frequency[7];
++count;
totalSalary+=salary;
totalGrossSales+=grossSales;}
else if(salary>=200){
++frequency[8];
++count;
totalSalary+=salary;
totalGrossSales+=grossSales;}
}
}
while (grossSales!=-1);
System.out.printf("\n共录入了%d位销售员的业绩：\n总销售额为：%.2f美元，工资总额为：%d美元\n",count,totalGrossSales,totalSalary);
System.out.printf("工资分布如下表所示：\n");
for (int i=0;i<9;i++){
if (i<8)
System.out.print("$"+100*(i+2)+"-"+(100*(i+3)-1)+"\t"+frequency[9-i-1]+"\n");
if (i==8)
System.out.print("$"+100*(i+2)+"以上"+"\t"+frequency[9-i-1]+"\n");
}
}
}

运行结果：

请输入下一位销售员当月的销售总额(整数，输入-1退出)：1000

请输入下一位销售员当月的销售总额(整数，输入-1退出)：3000

请输入下一位销售员当月的销售总额(整数，输入-1退出)：8000

请输入下一位销售员当月的销售总额(整数，输入-1退出)：10000

请输入下一位销售员当月的销售总额(整数，输入-1退出)：1699.88

请输入下一位销售员当月的销售总额(整数，输入-1退出)：80086.98

请输入下一位销售员当月的销售总额(整数，输入-1退出)：-1

录入已结束。

共录入了6位销售员的业绩：

总销售额为：103786.86美元，工资总额为：10539美元

工资分布如下表所示：

$200-299 1

$300-399 1

$400-499 1

$500-599 0

$600-699 0

$700-799 0

$800-899 0

$900-999 1

$1000以上 2