revised: 9/26/98, 7/30/99, 01/17/00, 06/01/00, 01/16/06
CHAPTER 10 — Input and Output
This chapter discusses input and output for Java 25 LTS and above. Most programs input data, process it, and then output the results. This chapter discusses ways to input data from the keyboard and output results to the monitor. Later chapters will discuss input and output from disk files and other media.
Chapter Topics:
- Input and Output Streams
- The standard I/O streams
- Scanner class
- Exceptions
- Converting character data to type
int
Note: Some books show input done using classes written by the book's author. To use them, you must install a package from a CD or from a web site. This is OK. You can use these notes (with standard Java methods) along with your text without any interference.
QUESTION 1:
When a computer program does an input operation, in which direction does the data flow?
- From an outside device into the program?
- From the program out to some device?