剛學java，特別不明白的地方想請教大家
SpringApplication.run(applicationStart.class,args);
這個run方法將applicationStart類當做參數傳入，自己老是覺得會是一個死循環，但實際又并不會發生死循環，不明白這其中的機制是怎樣的。
參考回復和其他的一些文章，寫了一個例子，找到可以導致死循環的地方。
cOberser
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace test1
{
public class cOberser
{
public cSubject mySubject;
public string strName;
public cOberser(cSubject pcs, string obname)
{
this.mySubject = pcs;
this.strName = obname;
}
public void update()
{
mySubject.notifyAllObservers();//這裡可以導致死循環
Console.WriteLine("update");
}
}
}
cSubject
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace test1
{
public class cSubject
{
public List<cOberser> listbservers= new List<cOberser>();
private int state;
public int getState()
{
return state;
}
public void setState(int state)
{
this.state = state;
notifyAllObservers();
}
public void attach(cOberser observer)
{
this.listbservers.Add(observer);
}
public void notifyAllObservers()
{
foreach (cOberser observer in listbservers)
{
Console.WriteLine(observer.strName);
observer.update();
}
}
public void f1()
{
Console.WriteLine("f1");
}
}
}
Main
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace test1
{
public class Program
{
static void Main(string[] args)
{
Console.WriteLine("開始進入main");
cSubject cs1 = new cSubject();
cs1.attach(new cOberser(cs1,"zhangsan"));
cs1.attach(new cOberser(cs1, "lis4"));
cs1.notifyAllObservers();
Console.ReadKey();
}
}
}
