Access the Private method from outside class in Java

You can access private method from outside class by changing the runtime behavior of the class

public method getDeclareMethod(String name,Class[] parameterTypes) throws NoSuchMethodException,SecurityException : returns a Method object that reflects the specified declared method of the class or interface represented by this Class object.

public class DynamicClass {   private void show(){ System.out.println("Test"); } }       import java.lang.reflect.Method;   public class AccessPrivateMethod {   public static void main(String args[]){ try{ Class clsClass = Class.forName("DynamicClass"); Object o = clsClass.newInstance(); Method method = clsClass.getDeclaredMethod("show", null); method.setAccessible(true); method.invoke(o, null); }catch(Exception e){ e.printStackTrace(); }   } }

Result : Test