这个程序的薪水为什么没有涨？

[u010179812]

下面这个程序我设计薪水涨10%，但是结果是没变，为什么？

import java.util.*;

public class Test
{
		public static void main(String[] args)
		{
				Employee[] staff = new Employee[3];
				staff[0] = new Employee("abc", 3000, 1999, 10, 20);
				staff[1] = new Employee("efg", 4000, 2000, 11, 12);
				staff[2] = new Employee("opq", 5000, 2012, 6, 12);
				
				for(Employee e: staff)
				{
						e.raiseSalary(10);	
				}
				
				for(Employee e: staff)
				{
						System.out.println(e.getName() + " "+ e.getSalary() + " " + e.getHireDay());
				}
		}	
}

class Employee
{
		public Employee(String n, double s, int year, int month, int day)
		{
				name = n;
				salary = s;
				GregorianCalendar calendar = new GregorianCalendar(year, month-1, day);
				hireDay = calendar.getTime();
		}
		
		public String getName()
		{
				return name;	
		}
		
		public double getSalary()
		{
				return salary;	
		}
		
		public Date getHireDay()
		{
				return hireDay;	
		}
		
		public void raiseSalary(int x)
		{
				salary = salary*(1 + x/100);				
		}
		
		String name;
		double salary;
		Date hireDay;	
}

[u010179812]

这自己这会儿又发现问题了，原来在

public void raiseSalary(int x)
        {
                salary = salary*(1 + x/100);                
        }

应把int x改成double x,数据类型不对。这个还真是难以注意到。

[是奉壹啊]

表达式的问题，这里 x/100 把这里声明成double x吧 public void raiseSalary(int x)

[u010179812]

嗯，楼上的方法更好。