class - Getting Declared Methods - Java -



class - Getting Declared Methods - Java -

suppose have next 3 classes

a.java

public class { public static void main (string[] args) { new c(); } }

b.java

import java.lang.reflect.method; import java.util.arrays; public class b { public b() { method[] m = this.getclass().getdeclaredmethods(); system.out.println(arrays.tostring(m)); } public void hello() { } }

c.java

public class c extends b{ public c() { super(); } }

and run main method in class a. well, should instantiate class c, in turn should phone call class b's constructor, print out declared methods. output []. surprise me, expecting output (assuming classes in bundle called test):

[public void test.b.hello()]

so, what's wrong? , how actual output?

getclass returns class of instance. in case, c. there no declared method in class c. can solve problem using 'getsuperclass' method of returned class object:

class c = this.getclass(); while (c != null) { system.out.println(arrays.tostring(c.getdeclaredmethods())); c = c.getsuperclass(); }

java class reflection

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