Current Topic: 1.2.1.1. Explore PC folders and Use Windows Commands (CMD/CLI)
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Windows Explorer and Windows Folders
CMD | CLI | ZIP
Java developers play with many tools, including those offered by Operating Systems, such as Windows, Unix, or Mac. Most companies use MS Windows as their development machines, while running Linux on their servers.
Besides using JDK and Eclipse, you will become proficient in exploring the folders on your development machine. In MS Windows world this means using File Explorer and Command Prompt tools.
Windows Command Window (CMD) and Command Line Interface (CLI)
Press Window + S buttons and enter cmd. You will see a black window with a couple lines of text there.
This is Command Line Interface (CLI). Some time ago, this was the only way to tell a computer what you want.
This is still a primary way for Linux/Unix systems to operate.
But after Apple and Microsoft introduced a mouse device and Graphical User Interface (GUI), their users happily jumped to easier ways of human-computer communications.
Was it clear so far?
As a programmer, you need to know a bit about CLI.
Enter help in the black window and you can see about hundred commands available to you.
Read, try, explore.
For example type: java -version
This is a reliable way to find out if you installed JDK correctly and which version is actually running on your machine.
ZIP compression is a very convenient procedure, for example, to email a set of files in one shot.
In MS Windows:
- Highlight all files or collect them in one folder and do right-mouse click.
- Select SEND TO option and then COMPRESSED folder - option - check a new file with the extension ZIP.
Rename this file to provide your name and section of study you are working on before sending this file over email
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