package typeinfo;

import java.lang.reflect.*;

import java.util.regex.*;

/**

* RUN:

* javac typeinfo/ShowMethods.java && java typeinfo.ShowMethods typeinfo.ShowMethods

* OUTPUT:

* public static void main(String[])

* public final native Class getClass()

* public native int hashCode()

* public boolean equals(Object)

* public String toString()

* public final native void notify()

* public final native void notifyAll()

* public final void wait(long,int) throws InterruptedException

* public final void wait() throws InterruptedException

* public final native void wait(long) throws InterruptedException

* public ShowMethods()

*/

public class ShowMethods {

private static String usage = "usage:\n"

+ "ShowMethods qualified.class.name\n"

+ "To show all methods in class or:\n"

+ "ShowMethods qualified.class.name word\n"

+ "To search for methods involving 'word'";

private static Pattern p = Pattern.compile("\\w+\\.");

public static void main(String[] args)

{

if (args.length < 1) {

System.out.println(usage);

System.exit(0);

}

int lines = 0;

try {

Class<?> c = Class.forName(args[0]);

Method[] methods = c.getMethods();

Constructor[] ctors = c.getConstructors();

if (args.length == 1) {

for (Method method : methods) {

System.out.println(p.matcher(method.toString()).replaceAll(""));

}

for (Constructor ctor : ctors) {

System.out.println(p.matcher(ctor.toString()).replaceAll(""));

}

lines = methods.length + ctors.length;

}

else {

for (Method method : methods) {

if (method.toString().indexOf(args[1]) != -1) {

System.out.println(p.matcher(method.toString()).replaceAll(""));

lines++;

}

}

for (Constructor ctor : ctors) {

if (ctor.toString().indexOf(args[1]) != -1) {

System.out.println(p.matcher(ctor.toString()).replaceAll(""));

lines++;

}

}

}

}

catch(ClassNotFoundException e) {

System.out.println("No such class: " + e);

}

}

}