In previous sections we have seen that how we can use "Reflection" to get information related to any Method.

Calling ( Invoking ) Methods through Reflection

     

In previous sections we have seen that how we can use "Reflection" to get information related to any Method. Now in this section of the tutorial you will come to know that we can also call methods of a class with the help of "Reflection".

Since methods of a class either consists of arguments or do not have any argument. So in case of no-argument method noting to worry just simply get class of that object (as we have taken "String" in our example) and after getting class , get that particular method and to invoke this method we have to use invoke() method.

Here is the example code of CallingMethod :

CallingMethod.java

import java.lang.reflect.*; public class CallingMethod {  public static void main(String[] args) {   String firstName= new String("Deepak");   String lastName=new String("Kumar");   String result =  new String("");   Class cls = String.class;   Class[] parametertype = new Class[] {String.class};   Object[] arguments = new Object[] {lastName};   try {  Method concatMethod =     cls.getMethod("concat", parametertype);  result = (String)    concatMethod.invoke(firstName,arguments);    System.out.println(" Concatenated String is =>    "+result);    }catch (Exception e) {  System.out.println(e);    }  } }

Output:

Download this Example Code

Related Tags for Calling ( Invoking ) Methods through Reflection:
c,  reflection,  com,  class,  orm,  form,  io,  methods,  help,  method,  format,  get,  vi,  tutorial,  ria,  this,  for,  call,  with,  to,  information,  ref,  e,  il,  it,  section,  ls,  can,  use,  in,  no,  rm,  info,  cal,  as,  m,  ca,  cl,  all,  me,  how,  tor,  rel,  s,  so,  ee,  at,  any,  late,  k,  is,  ha,  inf,  ll,  pre,  relate,  tutor,  s,  s,  ri,  th,  av,  ati,  hat,  lso,  inform,  informat,  pr,  ods,  on,  om,  o

More Tutorials from this section

• Reflection API Tutorials and Examples
• Calling ( Invoking ) Methods through Reflection
• Class Modifier Example
• Retrieving the class name through Reflection API
• Getting information about Constructor
• Examine Interface Example
• Finding out the class fields
• Getting Component type
• Getting Fields Information of a class
• Identifying array using Reflection
• Reflection API Tutorials and Examples
• Getting the implemented Interfaces
• Getting Methods Information of a class
• Getting the method name used in the Application
• No Argument Constructor Example
• Finding out the object of the class
• Reflection API : A Brief Introduction
• Setting Fields Information of a class using Reflection
• Finding out the super class name of the class
• Calling ( Invoking ) Methods through Reflection