[doha786]

hi,

i want to build a program that can read java files and find all the METHODS in those files and print it all..
suppose, in one java file contains methods like these:

public ReturnValues(Object first, Object second) {
		.....
	}
	
	public Object getFirst() {
		return first;	}
	
	public Object getSecond() {
		return second; 	}
}

public int total(int x, int y){
...
}

public void result(){
return; }

the output should like this:

Quote

Return Value:............ Method Name:......... Parameter: ...............

anybody pls tell me or give some suggestion how can i build this program ?

This post has been edited by doha786: 24 March 2010 - 02:30 AM

[japanir]

I am not sure, but id i understood correctly, you can use a Method Object.
here is the Method class API:
http://java.sun.com/...ect/Method.html

[SwiftStriker00]

you will need to create a BufferedReader and parse through the java file. While going through the line you are going to want tokenize your strings not based on lines, but by key punctuation like { } and ;

As you do this you will need to create some regular expression patterns to recognize keywords { public, class, void, boolean, etc.. } and also things like method names are always end with the opening paren "XXXX ("

All in all you essentially have to recreate a parser, unless you believe your RegEx from the second paragraph is good enough on its own to do it by itself

[cfoley]

Get your program to run javac to compile the class.

Load the new class.

Use reflection to get all the methods.

Extract the data you want from the Method object.

[NeoTifa]

I wrote a documentation tutorial with javac included. Check uner my "my contributions" thingy in my profile! I cba >_> ^__^ Hope it helps with what you're wanting.

[doha786]

Thanks a lot all of you for giving good suggestions...

But the fact is i'm just new in java, so i haven't learned and experienced few things that how to code like 'reflection',getMethod(String, Class[]), getDeclaredMethods(), getDeclaredMethod(String, Class[]).... anyway, i'm gonna learn..

besides, i'hv an idea..
since my program will be a very small search engine that will find the method names from java files, so to make it simple if the program search those methods names which are public..then i think i can make like this:

String target="public";
String returnValue;
String methodName;
..
returnValue = scan.findWithinHorizon(target,0); 
methodeName = scan.findWithinHorizon(returnValue,0);
.. 

i'm bit familiar with this method to find the next word of a target string.. But now, how can i find the parameters that have inside "( ........)" of the method ??

your co-operation is really appreciated..

This post has been edited by doha786: 24 March 2010 - 10:36 PM