Things you should know for the Spring 2008 CS211 Midterm.
Last updated 10/01/2008 --- Check back for updates!

Basic Unix commands

• cp SOURCE TARGET   copy a file from source to target
• cd   change directories
  
• ls   short listing of directory contents
  
• ls –l   display a directory listing giving details about directories and files
  
• mkdir DIRECTORY create the specified directory
  
• rm FILE   remove file or files
  
• man COMMAND   display the man (manual) page about the command
  
• mv SOURCE TARGET   move the source file to the target file   
  
• pwd   return the current working directory name
  

Basic Java

• Applets versus Applications
• Know the differences between an applet and an application
• Know what the paint method of an applet does, and given appropriate Javadocs, be able to write the code to draw a given screen
• Java command line interface (CLI) 
• Know how to compile a program on the command line
• Know how to run a program on the command line
• Know how to run a class in a package using the command line
• Java compiling
• Know how Java Virtual machine works with java byte code
• Be able to understand and use
• if statements
• Including boolean operators
• Know what short-circuiting is
• Know how to compare primititve types, Strings and other objects
• for loops
• while loops
• new for loop ("foreach") -- not for midterm -- know for final though! 
• switch statements
• know the difference between a statement and an expression
• Basic math
• Know how to do basic math using Java
• Know how to use the Math class to do more advanced math in Java (Javadocs will be given)
• Know how to convert Number bases using Java 
• Know how to convert to/from binary/decimal/hexadecimal (not using Java!)
• Classes and Objects
• What is the difference between a Class and an Object
• Constructors - Know what a constructor is, what it does, and how it gets called
• Know the difference between primitive data type initialization and complex data type instantiation. Know why we use object instantiation?
• Know how to access methods and attributes of a class using the dot operator
• Know how to define a class in a package
• Know how parameters get passed to methods in Java. Does changing a parameter effect the value after the method? Does it depend on the type of parameter?
• Know how to implement the toString method to print an object to the screen.
• Wrapper classes
• Know what wrapper classes are
• Know how to convert between primitives and wrappers
• Know what autoboxing and autounboxing are and how to use in conversions
• Visability Modifiers
• know how these modifiers support encapsulation and why encapsulation is needed
• be able to explain accessors (getters) and modifiers (setters) and why we use them
• public, private, protected, no modifier and how they effect methods and class variables
• static - what is a static method, what is a static variable? What do these mean.. if I give you an example with static methods/variables being called can you tell me which is a error? what the values are?
• Final modifier
• Know how to use the final modifier to create a constant. What happens if you try to change the value of a constant?
• Text-based Input/Output (I/O)
• Know how to write information to the screen
• Know how to read user input from the keyboard using Scanner (numbers, Strings, and letters)
• Event driven programming
• Know how to create an use events in Java
• Create components
• Add listeners
• Handle events generated by the components
• GUI Programming
• Know what a layout manager is
• Know how to use BoxLayout or FlowLayout (Javadocs given if needed)