Dynamically compile the instance code. very simple. I don't have to note.
Import java.io. *;
Import java.util. *;
Import java.lang.reflect. *;
Import java.io.file;
Public class compilest {
Static com.sun.tools.javac.main javac = new com.sun.tools.javac.main ();
Public static void main (String [] args) {
Try {
File file = file.createteTempfile ("Runtime", "Java", New file (System.GetProperty)))));
String filename = file.getname ();
String classname = filename.substring (0, filename.indexof ('.'));
PrintWriter out = new printwriter (new fileoutputstream (file);
Out.println ("Public Class" ClassName "{");
Out.println ("Public Static Void Main (String [] args) {");
Out.println ("System.out.Println (/" yes! / ");");
OUT.PRINTLN ("}}");
Out.flush ();
Out.close ();
String [] arg = new string [] {"- d", system.getproperty ("user.dir"), filename};
Int status = javac.compile (arg);
Class CLS = Class.Forname (classname);
Method main = CLS.GETMETHOD ("main", new class [] {string []. Class};
Main.invoke (null, new object [] {new string [0]});
File.delete ();
File = new file (classname ". Class");
File.delete ();
} catch (exception e) {E.PrintStackTrace ();
}
}
Author: youngmean
