Scalability of applications has become a lot more complex than buying a bigger Windows server or z/OS mainframe.  It is not just a system’s ability to handle user requests well as the numbers grow, but has mostly to do with managing system load, handling priorities, remaining responsive under high-load situations, while scaling as linearly as possible. A key problem of large-scale systems is data integrity as the number of transactions with write operations grows and the danger of data locks slowing down the system increases. Often the maximum number of concurrent users is seen as a measurement of scalability, but that is a dangerous shortcut. The number and kind of transactions that are required within a certain time frame is the only true measure of scalability. Response times for a transaction mix should remain below a limit at the expected peak transaction load.

For Java applications is difficult and expensive to achieve predictable, scalable performance. Simple switching from the single-server environments to multi-server can cause overall application throughput to collapse. Adding more data can cause the database to need progressively more resources. Java applications that work instantly in test, can be twenty times slower in response time when loaded with concurrent users.

The only (very complex) way to truly scale Java applications is to use three server tiers. The first is a HTTP-driven GUI, the second a Java server that de/serializes the tables of the third database tier into Java ……more

Send SMS , Short Message Service , Text Message

Send by set the timer , you may send sms for specific time or day.

Also may send text msg directly without timer.

This Java need to running continuesly / multitasking. Cause it must running background to process you sms send.

Some Java phone support it, Symbian OS also run well. Mobile phone with Windows Mobile OS perfect run. ……more

Email reader Java

Email reader is java apps for reading your email by phone. It’s reading from your server email, so you need to set the POP3 to your phone.

It easy as 1 2 3 , just put your server POP and , start downloading your email, and read it on your mobile phone

access from anywhere and anytime your email by using this java application.

Email reader support for any mobile phone on java engine.

You may download the file install here : ……more

Face Warp – Funny Photo maker

This Java Application is software based on Java for make funny effects of your photo. Many funny effect available to choose from this aplikasi.

But you only give the effect for photo taken directly from your camera. After take shot a photo, you may select from menu to give some funny effect.

Face warp is free application java for your mobile phone.

Download and Install , How to Install on your Phone ? ……more

File Lock Java

File Lock is a java application for lock your file or folder on file manager every cell phones. It’s allow you to set password on every time we want to access the file or folder.

File lock must running on background, because it needs to still running even mobile phone is leave the application.

Lock file will safe your data on your memory card or internal memory of your phone, So don’t be worry again about your data being accessed by someone else.

Download and Install , How to Install on your Phone ?

1. Save the JAR file for : File Lock to your memory card or internal memory  of your phone
   
2. Go to FILE MANAGER of your phone, then select the files you are download, and choose INSTALL
3. Wait for Installation progress till FINISH.
4. Now you  may run the program from installed directory or shortcut menu.