如何检查方法是否使用反射声明？

Question

I'm thinking about possibility of checking if methods was declared? For example in code

class foo
{
 variable.getSomething(true);
}

Can I check if method getSomething(true) was declared and what is value of boolean arrgument using reflection?

Answer 1

You use the Class#getMethod() call for reflection. method_name is the method you are looking for. For the primitive you want to just use the lower case boolean.class . Boolean.TYPE will work as well for the primitive value. Boolean.class will not work at all because it is the object type.

Class<variable type> clazz = variable.getClass();
try {
    //Boolean.TYPE can be used instead of boolean.class
    Method m = clazz.getMethod("method_name", boolean.class);
    //method exists
 }
 catch(NoSuchMethodException e) {
      //method does not exist
 }