Unit 0 - Command line, binary

Command line

• navigating directories
• creating directories
• creating / editing files
• copying / moving files and directories
• running Python programs
• compiling and running Java programs

hello.py

print("Hello, world!")

Run the program in your terminal:

$ python hello.py
Hello, world!

Hello.java

public class Hello
{
    public static void main(String[] args)
    {
        System.out.println("Hello, world!");
    }
}

In terminal:

$ javac Hello.java      # compile
$ java Hello            # run
Hello, world!

Counting in binary

• binary
• hexadecimal
• octal

Assignment

pdf