Questions and Exercises: Basic I/O (The Java™ Tutorials Essential Java Classes (original) (raw)
Questions
1. What class and method would you use to read a few pieces of data that are at known positions near the end of a large file?
2. When invoking format, what is the best way to indicate a new line?
3. How would you determine the MIME type of a file?
4. What method(s) would you use to determine whether a file is a symbolic link?
Exercises
1. Write an example that counts the number of times a particular character, such as e, appears in a file. The character can be specified at the command line. You can use xanadu.txt as the input file.
2. The file begins with a single long that tells you the offset of a single int piece of data within the same file. Write a program that gets the int piece of data. What is the int data?