import java.lang.reflect.*;import java.util.*;public class GenericReflectionTest{   public static void main(String[] args)   {      // read class name from command line args or user input      String name;      if (args.length > 0)          name = args[0];      else       {         Scanner in = new Scanner(System.in);         System.out.println("Enter class name (e.g. java.util.Date): ");         name = in.next();      }      try      {           // print generic info for class and public methods         Class cl = Class.forName(name);         printClass(cl);         for (Method m : cl.getDeclaredMethods())            printMethod(m);      }      catch (ClassNotFoundException e)      {         e.printStackTrace();      }   }   public static void printClass(Class cl)   {      System.out.print(cl);      printTypes(cl.getTypeParameters(), "<", ", ", ">");      Type sc = cl.getGenericSuperclass();       if (sc != null)       {         System.out.print(" extends ");         printType(sc);      }      printTypes(cl.getGenericInterfaces(), " implements ", ", ", "");      System.out.println();   }   public static void printMethod(Method m)   {      String name = m.getName();      System.out.print(Modifier.toString(m.getModifiers()));      System.out.print(" ");      printTypes(m.getTypeParameters(), "<", ", ", "> ");      printType(m.getGenericReturnType());      System.out.print(" ");      System.out.print(name);      System.out.print("(");      printTypes(m.getGenericParameterTypes(), "", ", ", "");      System.out.println(")");   }    public static void printTypes(Type[] types, String pre, String sep, String suf)   {      if (types.length > 0) System.out.print(pre);      for (int i = 0; i < types.length; i++)      {         if (i > 0) System.out.print(sep);         printType(types[i]);      }      if (types.length > 0) System.out.print(suf);   }   public static void printType(Type type)   {      if (type instanceof Class)       {         Class t = (Class) type;         System.out.print(t.getName());      }      else if (type instanceof TypeVariable)      {         TypeVariable t = (TypeVariable) type;         System.out.print(t.getName());         printTypes(t.getBounds(), " extends ", " & ", "");      }      else if (type instanceof WildcardType)      {         WildcardType t = (WildcardType) type;         System.out.print("?");         printTypes(t.getLowerBounds(), " extends ", " & ", "");         printTypes(t.getUpperBounds(), " super ", " & ", "");      }      else if (type instanceof ParameterizedType)      {         ParameterizedType t = (ParameterizedType) type;         Type owner = t.getOwnerType();         if (owner != null) { printType(owner); System.out.print("."); }         printType(t.getRawType());         printTypes(t.getActualTypeArguments(), "<", ", ", ">");               }      else if (type instanceof GenericArrayType)      {         GenericArrayType t = (GenericArrayType) type;         System.out.print("");         printType(t.getGenericComponentType());         System.out.print("[]");      }            }}