reading the property in java from command line

How to read some 开发者_C百科property passed from command line like -Dthread.count I saw it, but I'm not sure how to read that one in java code

String value = System.getProperty("thread.count");

Java has this documented:

http://download.oracle.com/javase/tutorial/essential/environment/sysprop.html

Basically, you're reading in the value of a System Properties. The link above gives you an example.

Use System.getProperty("thread.count");