Java线程：指定要在线程的运行函数中调用的函数

Question

I wonder if it's possible define function that will be called in Thread's run . It can be done by using if statement but is there a better way to do so?

a possible solution

public class WorkerThread extends Thread {
    private String functionToCall = null;

    public WorkerThread(String functionToCall) {
        this.functionToCall = functionToCall;
    }

    public void run() {
        if (functionToCall.equals("func1"))
            func1();
        else if (functionToCall.equals("func2"))
            func2();
    }

    private void func1() {
    }

    private void func2() {
    }

}

Answer 1

Yes, pass in a different Runnable object to the constructor, depending on what you want to run. Like this:

new Thread(myRunnable1);

or

new Thread(myRunnable2);

Then you don't need the WorkerThread class.

Answer 2

Java reflection provides a way of calling a method by name. The tutorial is available here: http://docs.oracle.com/javase/tutorial/reflect/ .

Answer 3

是正确的，但我建议使用interfaces来完成 。