- Java High Level Concurrency Objects
- constructors cannot be synchronized
- Liveness of multi-threaded applications
- Immutable Objects
- An application may have one or more processes. A process may have one or more threads.
- Two ways to create threads
- Thread.sleep(4000); To pause a thread. The time like 4000 ms is really dependent on the os and not precise
- Thread Interrupts
- Thread Join
- Regular Expression
- Regular expression – meta characters: ([{^-$|]})?*+.
- Character Classes for Regular Expressions
- Pattern Class
- Matcher Class
- System.getenv(): get environment variables in a hashmap.
- System.getProperty(“path.separator”); System.setProperties : read and write system properties.
- How to use Properties to keep application properties
- Access SecurityManager: SecurityManager appsm = System.getSecurityManager();
From: http://sitestree.com/?p=4879
Categories:Java Short Notes, SCJP
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Post Data:2009-04-19 03:15:05
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