Vim Presentation

.vimrc

" Set Insert mode to allow the backspace key
" for deleting characters
set backspace=2

" Instead of using a tab, use 2 spaces
filetype plugin indent on
set tabstop=4
set shiftwidth=4
set expandtab

HelloVim.java

/**
 * Hello! If you're reading this file, it's because you're interested in the Vim
 * text editor and probably want to learn some more.  I'll guide you through making
 * some modifications to this file so that you can get familiar with how to use vim.
 *
 * To start out, download this file to your computer with the following command:
 * 
 *  wget https://gist.githubusercontent.com/alexlafroscia/d97ae6b81442ca7b8d9c/raw/HelloVim.java
 * 
 * This will download the file you're reading right now, which we'll be editing together
 * using Vim.  You can then open it in Vim using
 * 
 *  vim HelloVim.java
 *
 * Next we want to give Vim some basic setup so that you're not pulling your hair out.
 * Vim configurations can be very complex -- and very powerful -- and allow you to really
 * make Vim feel like home on your laptop.  The configuration you just provided just does
 * a few things:
 *
 *  1. Allow you to use the `DELETE` key in Insert mode, they way you're used to with other
 *     editors.  This is a good idea so that you can get used to using Vim without it
 *     feeling too different from other things you're used to.
 *  2. Set up `TAB` to insert 2 spaces instead.  This is generally good practice, and prevents
 *     you from mixing tabs and spaces in the same file without meaning to.
 *
 * To make things a little easier, you can run the following command to download the
 * configuration file to the right location.
 * 
 *  wget -P $HOME https://gist.githubusercontent.com/alexlafroscia/d97ae6b81442ca7b8d9c/raw/.vimrc
 * 
 * This will automatically download the correct file from Github and place it at the right location
 * in your file system.
 * 
 * ================================================================================================
 * 
 * To start out, practice moving around the file.  Remember the basic movements:
 * 
 *  h : left
 *  l : right
 *  j : down
 *  k : up
 * 
 * Try moving around by words, too
 * 
 *  w : beginning of next word
 *  b : beginning of previous word
 *  e : end of next word
 *
 * A few more important commands to remember, in case you're getting frustrated:
 * 
 *  - If you want to exit "insert" mode, press the `ESC` key
 *  - If you want to save the current file, press `:w` from Normal mode
 *  - If you want to exit Vim, press `:qa` from Normal mode
 */
 
import java.io.*;

public class HelloVim {


    /**
     * Just to get the hang of editing a file in Vim, try making a new instance of the Person
     * class, and printing the full name to the console instead.  Remeber that to get into
     * Insert mode, you can use the 'i' command, and use 'ESC' to get back to Normal mode
     */
    public static void main(String[] args) {
       System.out.println("Hello, world!");
    }

    
    /**
     * Now that we're printing my name, let's print yours!  Try using a motion like '2j' to get
     * down to where the first name is assigned, and then use the `w` command to move to the front of
     * word.
     * 
     * If you want to get fancy, try selecting text to replace it!  With your cursor over the "A", press 'v'
     * and then 'e' to select "Alex".  Next, press the 'c' command to change the text, type your name, and
     * press 'ESC' to return to Normal mode.  Repeat with the last name, too.  Make sure to save the file with
     * ':w' when you're done!
     */
    private class Person {
        String firstName = "";
        String lastName = "";
        
        public Person() {
            this.firstName = "Alex";
            this.lastName = "LaFroscia";
        }

        
        /**
         * Now, try to add a new method from a copy of the one below.  With your cursor on the method
         * definition, press 'V' and then 'j' until the whole method is selected.  Then, press 'y'. This
         * copied the text to Vim's internal clipboard.
         * 
         * Now, position your cursor after the method and press 'p' to paste it into the file.  Change the
         * method to do something else, and modify the Main method to print something else.
         */
        public String fullName() {
            return this.firstName + " " + this.lastName;
        }
    }
}