?? statictest.java
字號:
//StaticTest.java
public class StaticTest
{
public static void main(String[] args)
{
Employee[] staff = new Employee[3];// 輸入三個員工的信息到職工數組
staff[0] = new Employee("張三", 40000);
staff[1] = new Employee("李四", 60000);
staff[2] = new Employee("王五", 65000);
for (int i = 0; i < staff.length; i++)// 打印輸出所有員工的信息
{
Employee e = staff[i];
e.setId();
System.out.println("姓名=" + e.getName()+ ",編號="
+ e.getId()+ ",工資=" + e.getSalary());
}
int n = Employee.getNextId();// 調用靜態方法
System.out.println("下一個有效編號=" + n);
}
}
class Employee
{
public Employee(String n, double s)
{
name = n;
salary = s;
id = 0;
}
public String getName()
{
return name;
}
public double getSalary()
{
return salary;
}
public int getId()
{
return id;
}
public void setId()
{
id = nextId;// 設置職工編號到下一個有效編號
nextId++;
}
public static int getNextId()
{
return nextId;//返回靜態存儲空間
}
public static void main(String[] args) // 單元測試
{
Employee e = new Employee("張三", 50000);
System.out.println(e.getName() + " " + e.getSalary());
}
private String name;
private double salary;
private int id;
private static int nextId = 1;
}
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