Printing a method with its parameters in a specific way using reflection in Java

Question

The following snippet is part of a huge Java project that I'm working on:

        Map<String, String> method_types = new HashMap<String, String>();
        Method[] methods = ClassLoader.getSystemClassLoader().loadClass("className").getDeclaredMethods();

        for (Method method : methods) {
            String type = Modifier.toString(method.getModifiers());
            method_types.put(method.getName(), type);
            System.out.println("-> " + method.getName() + " -- " + Modifier.toString(method.getModifiers()));
        }

This will print the following:

-> zoo -- private 
-> zoo -- public 
-> boo -- public 
-> thro -- private 
-> foo -- protected

What I want is to print the methods along with their parameters such as:

ArtClassPrivateMethod.zoo(I)V
ArtClassPrivateMethod.boo(I)Z
ArtClassPrivateMethod.zoo(II)V
ArtClassPrivateMethod.thro()V
ArtClassPrivateMethod.<init>(Ljava/lang/String;)V

Note that the method zoo(II)V is the private one.

Is that possible to be printed?

It's not completely clear what do you what's requirement. It you need to print only parameter types there's `Method.getParameterTypes()` method. If you would print also parameter names here's detailed topic https://stackoverflow.com/a/20594685/2553521 — edwgiz, Jan 16 '20 at 18:48

Printing a method with its parameters in a specific way using reflection in Java

0 Answers0