Java Class Libraries

• Java programs consist of pieces called classes.
• Classes include methods that perform tasks and return information when the tasks complete.
• Java class libraries

• Rich collections of existing classes
• Also known as the Java APIs (Application Programming Interfaces)
• To get the API documentation on the web, click http://java.sun.com/javase/8/docs/api/index.html
• Additional technical details on many aspects of Java development, go to http://www.java.sun.com/reference/docs/index.htm

• Reuse & Portable concepts: