《Java 核心技术》练手小项目2-工资管理2

类与对象练习–工资管理（增加静态变量和静态方法+main测试单元类）

public class StaticEmployeeTest{
	public static void main(String[] args){
		var[] employer = new Employee[3];
		employer[0] = new Employee("First", 5000);
		employer[1] = new Employee("Second", 10000);
		employer[2] = new Employee("Third", 15000);
		for(Employee e : employer)
			e.setId();
			System.out.println(e.getName+e.getSalary+e.getId);
		int ID = Employee.getNextId()//静态方法，跟类的对象无关
		System.out.println("下一个可用的员工号码是：" + ID);
			}}
class Employee{
	private static int NextId = 1;
	private String name;
	private int id;
	private double salary;

	public Employee(String n,double s){
		id = 0;
		name = n;
		salary = s;
		}
	public static int getNextId{
		return NextId;
		}
	public void setId{
		id = NextId;
		NextId ++;
		}
	public int getId{
		return id;
	}
	public String getName{
		return name;
		}
	public double getSalary{
		return salary;
		}
	public static void main(String[] args){
		Employee employertest = new Employ("Test", 1000);
		System.out.println("name:"+ employertest.getName+", salary:"+ employertest.getSalary);
		}
}