CS101

Course Content and Resources for CS101, sponsored by Heights Philadelphia, taught through Arcadia University.

Arcadia Course Canvas Link

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Topic 5: Booleans, Conditionals

Associated Lab: lab5_booleans_conditionals

• START WITH: #15 Boolean Java Tutorial

• w3 Pages

  • w3 Java Comparison Operators
  • w3 Java Logical Operators
  • w3 If...Else --> Go through all of these EXCEPT the "Short Hand If...Else", this will be covered later.

• tutorials (intentionally out of order)

  • #16 How To Use Comparison Operators In Java
  • #20 Logical Operators In Java
  • #17 If Else Statement In Java Tutorial

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Topic 4: User CLI Input and Type Casting/Conversion/Parsing

Associated Lab: lab4_input_and_casting

• User Input
  • #14 Java Scanner Tutorial
    • If still confused, try:
      • #12 How to get String Input from a User in Java
      • #13 Java Program Example: Add Two Numbers From a User
• Type Casting
  • #55 Java Type Casting Tutorial
  • w3 Java Type Casting
• parseInt
  • How to Convert String to Int in Java
  • #56 parseInt Java Tutorial - String to Integer

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Topic 3: Java Variables & Arithmetic

Associated Lab: lab3_variables

• Variables
  • #6 Java Strings Tutorial
  • #7 Java Int Variables
  • #9 Double, Long and Float Java Tutorial
  • Codecademy: Intro to Java, Variables (free)
• Arithmetic
  • Java arithmetic is easy!
  • w3 Java Arithmetic Operators

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Topic 2: Java Print Statements

Associated Lab: lab2_java_print_statements

• Tutorials
  • #2 System.out.println In Java
  • #3 Comments in Java
  • #4 Escape Sequences In Java
  • (project) #5 Animated ASCII Art Java Code
  • Codecademy: Intro to Java, HelloWorld (free)

The basic boilerplate for a java class is:

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

The name of the file must match the name of the class. In this case it must be helloWorld.java.

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Topic 1: Command Line (CLI)

Associated Lab: lab1_shell_script

• Tutorials
  • Codecademy:
    • Codecademy: Intro to the Command Line (free)
    • Codecademy: Learn the Command Line: Viewing and Changing the File System (free)
  • SW Carpentry
  • Ubuntu Tutorial
  • Command Line Crash Course For Beginners (44min) Reference Cheatsheets (list of commands): One Pager and/or One With Descriptions

Tips:

• Be very careful with the rm command. There is no way to undo! It is easy to accidently delete important files forever.
• If you get stuck in a weird interface, try:
  • Hit Enter a few times
  • Hit CTRL - c or CTRL - d
  • Hit q
  • (last resort) Close window and start over

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Other Resources

Touch Typing

• typing.com : Used for typing tests to calculate extra credit points
• KeyBr : Typing practice
• TypingClub : Typing exercises

Integrated Development Environments (IDEs) for Java

• VS Code with Java Extensions - Free lightweight editor with plugins for (almost) everything
• Harvard CS50 Codespaces - Online version of VS Code accessible via browser (connects to remote machine)
  • Purposefully does NOT have tab-completion
  • Includes CS50s Duck Debugger, a free ChatGPT powered AI that will guide your learning, but will not write code for you.
• Intellij IDEA - Professional level IDE; No additional setup required for Java development
  • Requires significant RAM and may be too slow on old machines
• Eclipse IDE - Similar to Intellij, with slightly smaller RAM footprint and older-looking interface

Windows Intellij IDEA Setup

• Java 25
• Git Bash
• IDEA
• TODO REMOVE THIS