RetroJava
create a commandline program for counting the lines, words and characters within a set of files.
(like it used to be done in the Olden Days).
Create, using a standard text editor like nano, two class files (CountInFile.java & FileCounting.java) that will produce the following output when run from the shell:
$ java CountInFile *.txt
34 268 1425 antonysspeech.txt
75 458 2783 chineseproverbs.txt
70 758 4193 flushingremonstrance.txt
11 99 649 preamble.txt
12 106 713 primedirective.txt
Use ONLY nano, javac, and other command line tools to create this program.
DO NOT use IntelliJ, or other code editors.
The point of this lab is to understand how to create a java program using only shell tools. All the .txt files are just samples of text and just used as input. (If it matters, they are all in UTF-8 format.)
CountInFile should get the command line arguments, and then create a FileCounting object and call a method named:
public String ScanTheFile(String filename) which returns
34 268 1425 antonysspeech.txt when handed "antonysspeech.txt"
CountInFile should do this for each file passed on the command line when invoked from the shell.
What does a .class file do? How do you get one from a .java file
You may, should you find it necessary, use a command line tool called make.
NOTA BENE: You may need to understand the difference between a string's length and the byte[] that it actually uses. This comes into play when looking at the file with the chinese characters in it.
NOTA BENE: If you want to understand what program you are trying to mimic, use wc without any commandline flags.
You should only need the two supplied JAR files with the JUnit testing stuf in them.
Some more pointers.
When looking at the this lab, you should consider it a chance to learn how to use a terminal based screen editor for text files. You might use Nano or Vim (or even, gasp, Emacs) https://medium.com/linode-cube/emacs-nano-or-vim-choose-your-terminal-based-text-editor-wisely-8f3826c92a68 You may also need (and you should) use make to handle not having to type long java compile and test lines when you run your compiler on the code you develop. https://www.cs.swarthmore.edu/~newhall/unixhelp/javamakefiles.html