I want to write a method that takes an input such as:
10:20
10:40
30:20

Over the years, I've occasionally heard the term "memory leak" but, in all
honesty, I've never quite understood what that is.
What exactly is a memory leak? What causes them? What are the consequences
of memory leaks? How can they be prevented? How can they be detected if you

I have two questions regarding file I/O:
(1) If I want to open data.txt in C:\test directory, how to pass
directory name to FileInputStream?
I know how to open data.txt in current directory:

newbie question
what i'm trying to do is manipulate a string from a GUI textfield. I want to
be able to break apart a string, then convert each character to a single
integer, so that I can pass each integer through a loop and use it in a

Since I am only able to pass simple beans around using my Web Service
framework, I wonder how to incorporate business logic around these beans.
My idea was to let my Beans be the base class and simply extend these
with more sophisticated classes with the nessesary business logic

As i know a String can contain not only the visible characters, but also
some invisible signs, like the tabulator ('\t'), newline ('\n'),
carriage return ('\r').
My question is: are there any other characters expect the above?

I'm fairly new to database programming with java but I have used odbc
to make connections to my database and do basic sql commands.  However,
I want to connect directly to the database and not use odbc.  Do I need
to download any drivers and   what code would I need to make this

Has anyone taken the approach of just forgetting about constructors in Java
and instead using a conventionally-named initializer?  I'm very, very tired
of having to define (and often edit) the same ctor over and over again in
subclasses.  Ctors are not virtual, while an initializer ...

Been having trouble lately running a program I've been working on.  Here's
the backstory: I'm developing using Eclipse 3.0 and the Jigloo plug-in for
the GUI.  I can run an applet fine within Eclipse, but when I try to run
the applet through a .htm file, I get an error 'Applet ...

I'd like to write a file in a ftp server.
If it necessary I can create an accaunt without password
so I can refer to ftp folder as ftp:\\user@127.0.0.1
how can I do?

I am currently running Tomcat 5.5 and IIS6.  Up until recently I had
only one site that was using servlets.  But as of this week I have
acquired a new site that will also be using a few servlets.  Originally
I placed copies of the servlets for the site in the sites directory,

Hey guys, I'm new to j2me and I would like to develop a hangman game
are there any tutorials available online to tech me specifically how to
do this.
Salim

I am a newbie in a jam.  I need to write a program which creates five
random playing cards, using a custom class to create the cards (suit &
face value).  I assume I would create something similar to the dice
example below.  Can someone please help? Thanks in advance to any

I actually have a java source file that makes the GUI using Swing. The
GUI has 12 buttons each performing different functionalities. It even
got a couple of text areas.
I do not want to clog the GUI code by adding all the button's event

Hi, i have a program in C++ which i want to convert to Java.
#include <iostream>
#include <iomanip>
#include <math>