test

https://play.google.com/apps/testing/com.wellin.fsn

[JAVA RMI] Remote Method Invocation

The Java Remote Method Invocation (RMI) system allows an object running in one Java virtual machine to invoke methods on an object running in another Java virtual machine.

RMI provides for remote communication between programs written in the Java programming language.

https://docs.oracle.com/javase/tutorial/rmi/

[Java] SimpleDateFormat

Code Template:

Calendar cal = Calendar.getInstance();
SimpleDateFormat sdf = new SimpleDateFormat("YY/MM/dd HH:mm:ss");
System.out.println( sdf.format(cal.getTime()) );

[JSP] Scriptlet VS EL expression / JSP Best Practices

What is Scriptlet?

Example: <% int i=0; %>

What is Expression Language?

Example: ${Some_Vars}



Better use EL over Scriplet :

http://stackoverflow.com/questions/3177733/how-to-avoid-java-code-in-jsp-files/3180202#3180202

[Spring Bean] A Summary on why @Autowired field got null value

1. The object is instantiated via "new Object()" rather than in app context pool
   How to check
   Via Eclipse Debug > stacktrace > check where the instance are from 

[Java Spring] [Typical Question] Got NullPointerException for the @Autowired field

http://stackoverflow.com/questions/19896870/why-is-my-spring-autowired-field-null

[Java Image] Convert Image to ByteArray, and ByteArray to Image

http://www.programcreek.com/2009/02/java-convert-image-to-byte-array-convert-byte-array-to-image/

How to implement a multi-language website?

http://stackoverflow.com/questions/19249159/best-practice-multi-language-website