This document discusses Java class libraries, exceptions, and input/output. It covers the structure of the Java API and how to import classes. It also describes checked and unchecked exceptions, and how to write exception handling code. Finally, it provides examples of reading and writing text and binary files using different stream classes like FileReader, FileWriter, BufferedReader, and BufferedWriter.

1. Java Class Libraries, Exceptions and IO Jussi Pohjolainen Tampere University of Applied Sciences

2. CLASS LIBRARIES

5. Structure of the Java API java.io Math static int round(float a) java.lang java.applet String Integer static double sqrt(double a) static double sin(double a) Package Class Methods . . . . . . . . .

15. EXCEPTIONS

23. NumberFormatException Inherites RuntimeException =>Unchecked Exception =>You MAY implement exception handling

26. JAVA IO

27. Input and Output Streams Input Output Binary FileInputStream FileOutputStream Text FileReader FileWriter