从类实例和字符串构建方法调用？

Question

In Java is it possible to execute a method call given the class instance and the method call saved as a string?

I want to make a sequence of different method calls random so I was going to put the method parts in a list as Strings and shuffle them. How do I then use this string as part of a method call? eg myClass.temp below is being treated as a property. If I put the full myClaims. in the List as Objects it will try to execute them there.

List<String> methodList = new ArrayList<String>()
methodList.add("createMethodx(params...)")
methodList.add("createMethody(params...)")
methodList.add("insertMethodz(params...)")

String temp = methodList.get(0)
myClass.temp    //Execute the method.....doesn't work

Answer 1

That's a bad way of doing it. Instead, create a list of Runnable or Callable objects, shuffle that list, and then call the runnables:

final MyClass myClass = ...;
List<Runnable> actions = new ArrayList<>();
actions.add(new Runnable() {
    public void run() {
        myClass.createMethodx(...);
    }
});
actions.add(new Runnable() {
    public void run() {
        myClass.createMethody(...);
    }
});

Collections.shuffle(actions);

for (Runnable action : actions) {
    action.run();
}

With Java 8, that code would become

MyClass myClass = ...;
List<Runnable> actions = new ArrayList<>();
actions.add(() -> myClass.createMethodx(...));
actions.add(() -> myClass.createMethody(...));

Collections.shuffle(actions);

for (Runnable action : actions) {
    action.run();
}