可以用for做getMethodX吗？ [英] Is it possible to do getMethodX with a for?

问题描述

我有四个方法如此创建：

I have four method so created:

method1();
method2();
method3();
method4();

我可以像这样使用它吗？

Can I use it like this?

for (int i = 1; i <= 4; i++) {
    method+i+(); // ?
}

推荐答案

有多种方式要做到这一点，但一般来说，它表明你没有正确编程你的程序。你可以这样做。

There is a number of ways to do this but in general it suggests you haven't structured you program correctly. You can do this.

for (int i = 1; i <= n; i++)
    getClass().getMethod("method" + i).invoke();

或者你可以使用一个结合了所需功能的长方法。

Or you could just have a long method which combines all the functionality you need.

Java 8中的替代方法是这样做

An alternative in Java 8 is to do this

Runnable[] runs = {
  this::methodOne,
  this::methodTwo,
  this::methodThree,
  this::methodFour,
  this::methodFive,
  this::methodSix };

for (int i = 0; i < n; i++)
    runs[i].run();

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