Java 访问在另一个类中创建的对象
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Accessing an object created in another class
提问by system
I create a thread in my main class. The thread has a timer which writes and reads on a socket.
我在主类中创建了一个线程。该线程有一个在套接字上写入和读取的计时器。
I need to call a method in the thread class e.g writeSomething() from another class outside of where it was declared(Main).
我需要在线程类中调用一个方法，例如从声明它的位置（Main）之外的另一个类调用 writeSomething()。
How is the object referenced from another class?
对象是如何从另一个类引用的？
Edit
编辑
public static Thread connectionThread;
ModelJTable table = new ModelJTable();
connectionThread = new Thread(new ConnectionThread(table), "connectionThread");
connectionThread.start();
I have a method in the thread class
我在线程类中有一个方法
public void openFile(String fileName){
String request = "open;" + fileName;
out.print(request);
}
I want to access if from another class(the JTable class)
我想从另一个类（JTable 类）访问 if
String open = "open;" + getname + ";" + getpath;
// This doesnt work
ConnectionThread.openFile(open);
This call gives an error
这个调用给出了一个错误
No enclosing instance of the type ConnectionThread is accessible in scope
在范围内没有可访问的 ConnectionThread 类型的封闭实例
采纳答案by Jigar Joshi
Either pass it in constructor of second class OR make it static in first class, OR serialize it
要么在第二类的构造函数中传递它，要么在第一类中将其设为静态，要么将其序列化
way 1: static one
方式一：静态方式
Class A{
public static int a=0;
}
Class B{
public void someMethod(){
A.a = 10;
}
}
回答by jzd
Pass a reference to the Thread to the class that needs to call the method.
将 Thread 的引用传递给需要调用该方法的类。
