Java: An Introduction to Problem Solving and Programming, 8th Edition

Answers to Self-Test Questions

1. 1. If a program sends its output to the screen, the output goes away when (or soon after) the program ends. If your program sends its output to a file, the file will remain after the program has finished running. A program that sends its output to a file has preserved its output for use long after the program ends its execution. The contents of a file remain until a person or program changes the file.

2. 2. From a file to the program.

3. 3. All files contain binary data. Text files can be thought of as a sequence of characters. You can write to and read a text file by using a text editor or your own Java program. All other files are called binary files. Data in these files cannot conveniently be read using a text editor, ...