To Exam Info

IT 212 -- Final Review Guide

Bring to Final:

• Calculator (or cell phone) not allowed.
• Two 8.5" × 11" pages of crib notes, both sides. Can be computer printed.
• The code you submitted for each of projects 3a, 3b, 3c, Lab 3, and 4.
• Th documents Python to Java Dictionary and Builtin Methods.
•  Regular Expression Tokens Table

Final Exam Format

• Multiple Choice Questions:
  You are allowed to give reasons or show your work to justify your answers for partial credit. If your answer is correct, the reasons will not be considered.
• Find errors in Python modules.
• Find errors in Java classes. The equivalent Python scripts without errors will be supplied for reference.

Definitions:

• datatypes (str, int, float, bool, list, dict), f-string, string format method, format specifiers ({0:d}, {1:03d}, {2:f}, {3:5.3f}, {4:s}), standard out (print), standard in (input), logical operators (and, or, not), file methods (readline, readlines, read, close), control structures (if..elif, while, for), str constant delimiters ('...', "...", '''...''', """..."""), string escape characters ( \n, \t, \a, \f, \\, \", \', \s ), class, object, instance variable, standalone method, instance method, accessibility (public, private), constructor, dunder methods (__init__, __str__, __repr__, __lt__, __eq__), UML diagram, testing (traditional, unit testing), inheritance, overridden method, is-a test, base class (superclass, parent class), derived class (subclass, child class), super to invoke method from base class, arrays of objects, dictionary object, regular expressions, Python module (import, from ... import), interpreted vs. compiled language, SQLite3, Python sqlite3 module (connect, cursor, execute, commit, fetchall, close),  Java.

Builtin Methods

• Know how to use the methods in the Builtin Methods document.

Java Keywords and Methods

• import  class  public  static  void  main  { ... }  System.out  System.in  println  print  System.exit(0)  if ... else  while  for  int  double  boolean  String 

Java if Statements

if(condition) {
    action;
}


if(condition) 
{
    action1;
}
else
{
    action2;
}


if(condition1)
{
    action1;
}
else if(condition2)
{
    action2;
}
else 
{
    default action;
}

Java Loops

while(condition) 
{
    action;
}

for(initialization; condition; iteration) 
{
    action;
}

Concatenation vs. String.format for Java Output

// Concatenation
System.out.println(name + " " + gender + " " + age);

// String.format
System.out.println(String.format("%s %c %d",
    name, gender, age);
    
// or
// String.format
System.out.printf("%s %c %d", name, gender, age);  

Java User Defined Methods

public static returnDatatype methodName(param1, ... , paramn) {
    // body of method
    // return output; // (if not void)
}

Be Able To

1. Answer multiple choice questions giving reasons to explain your choices.
2. Construct a variable trace and predict the output for a Python script. This may involve classes and objects.
3. Find errors in a Python script.
4. Convert a traditional test script to a unit test script.
5. Explain what a method does.
6. Explain which strings a regular expression accepts.
7. Predict the output of a Python expression that uses the regular expression methods search, sub, and split from the re module.
8. Find errors in Java source code. You will be given the equivalent Python script for comparison.
9. Predict the output of a Java program.
10. Explain the difference between an interpreted script and a compiled program.
11. Understand the similarities and differences between Python and Java.