静态块执行了 几次??
import java.util.*;
public class ConstructorTest
{
public static void main(String[] args)
{
Employee[] staff=new Employee[3];
staff[0]=new Employee("Harry",40000);
staff[1]=new Employee(60000);
staff[2]=new Employee();
for(Employee e:staff)
System.out.println("name="+e.getName()
+",id="+e.getId()
+".salary="+e.getSalary());
// TODO code application logic here
}
}
class Employee
{
public Employee(String n,double s)
{
name=n;
salary=s;
}
public Employee(double s)
{
this("Employee #"+nextId, s);
}
public Employee()
{
}
public String getName()
{
return name;
}
public double getSalary()
{
return salary;
}
public int getId()
{
return id;
}
private static int nextId;
private int id;
private String name="";
private double salary;
// 静态块
static
{
Random generator=new Random();
nextId=generator.nextInt(100000);
}
{
id=nextId;
nextId++;
}
}
3次构造器 初始化对象 后面的静态块执行了几次 是1次还是3次??