CS 102 Exam 3 Review Topics

Chapter 8 - Collections
• Introduction & Objectives - READ THEM
• Loops
• Know how to use do loops
• Know how to use while loops
• Know how to use for loops
• Arrays
• Know how to declare arrays
• Know how to initialize arrays
• Know the difference between arrays with primitive versus object elements
• Know how to access array elements
• Know how to use loops with arrays
• Know how to work with multidimensional arrays
• Know what heterogeneous arrays are
• Know how to use the length field
• Sorting
• Understand generally how a selection sort works
• Understand generally how a insertion sort works
• Understand generally how a quicksort works
• Vectors
• Understand the difference between vectors and arrays
• Understand how elements of a vector are accessed
• Know when to use a vector rather than an array
• Strings
• Understand what strings are
• Understand what it means that strings are immutable
• Know how to use the charAt and compareTo methods
• Understand how to use the valueOf method
• Understand the use of wrapper classes for conversion
• Know how to use the length method
• Hands On - Sortmeister.java - LOOK IT OVER
• Know how to fix the problem caused by the use of the deprecated method in Sortmeister.java
• Summary - READ IT
• Class References - SCAN AT MOST - you should have already read them

Chapter 9 - Exceptions
• Introduction & Objectives - READ THEM
• Exceptions
• Know what exceptions are
• Know the exception heirarchy and how Error relates
• Know several common exceptions and what causes them
• Know several methods in several classes which throw exceptions
• Handling Exceptions
• Know how to use the try and catch blocks
• Understand what exception propagation is
• Understand the difference between the throw statement and the throws clause
• Know what the NullPointerException is and what causes it
• Understand the purpose of the finally clause
• Your Very Own Exceptions
• Know how to define and use your own exceptions
• Hands On - OrderPlease.java - LOOK IT OVER
• Summary - READ IT
• Class References - SCAN AT MOST - you should have already read them

Chapter 10 - Input/Output
• Introduction & Objectives - READ THEM
• Streams
• Know the part of the streams heirarchy in your text
• Know common methods of the abstract InputStream and OutputSteam classes
• Know common methods of the DataInputStream and DataOutputStream classes
• File I/O
• Know common methods of the FileInputStream and FileOutputStream classes
• Understand the IOConsoleAndFile.java windows application (including I/O types) discussed in class
• Understand the readFrom and writeTo methods for class type I/O
• Understand the header method used with records in your text
• Advanced File I/O
• Understand the purpose of the File class
• Understand the types and uses of the FileDialog class
• Security, Applets, and Applications
• Know the four levels of protection in Java
• Know things an applet loaded from a web page is not normally allowed to do
• Know the differences between applets and windows applications and how to implement each
• Hands On - WordPro.java - LOOK IT OVER
• Summary - READ IT
• Class References - SCAN AT MOST - you should have already read them

Miscellaneous
• See AppDialog.java illustration program
• See NormalMenu.java illustration program

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