Review Sheet CISC 1115 (Subject to change)

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Know:

· Lectures and labs

· Textbook, workbook, assignments.

Hardware, software, algorithm, program, languages, compilation and execution, program

Steps in programming, pseudocode, tracing, bugs, debugging, style, documentation, ++, +=, (?:)

Count, sum, average, don’t divide by 0, max, min, factorial, divisor of, odd/even, Fibonacci

Decimal, binary and hexadecimal number systems

Algorithms to keep straight:

· Max/min-compare current to value being remembered

· Linear search-compare each element to the value for which you are searching

· Binary search and its friends (guess numbers, squareroot)

· Bubble sort- compare each element to the next one

· Consecutive Duplicates-compare each element to the next one

Applications

(A) Basics

(1) Preliminaries

A basic model of actual computer systems and the internet

Computer terms

History of computing

Building software: programming languages, compilers, testing

Programmers and users

(2) Hello, World
Simple one method (main) programs

Standard output

String literals

Comments

(B) Arithmetic Calculations

(1) Numbers

Output (print/println) of, literals of,

Declarations of variables

Operations of the int and double data types

Declaration initialization, final variables (constants)

Assignment operators, exchange (swap) algorithm, increment, and decrement

Distinction between integer and double arithmetic, divisibility, parity

Expressions, precedence, mixed arithmetic and casting

(2) Input and Output in Programs

Input using Scanner, methods: nextInt, nextDouble;

The import statement

Formatted output (printf)

(C) Other Types: Strings and Logical

(1) Strings

Output of, literals,

Declarations,

Operations of String and their use (concat, length, substring (both forms), indexOf/lastIndexOf (both forms), trim, toUpperCase, toLowerCase, charAt, compareTo, equals)

Primitive vs Reference [Object] types: operator vs methods

The char data type

Input using Scanner, methods: next, nextLine;

(2) Logical

The boolean type; declaring boolean variables

Relational operators

Assigning to boolean variables; flags

Logical operators

The conditional operator

Range checking

(D) Methods

(1) Calling Static Methods

Invocation, arguments, and return values

Current time (System.currentTimeMillis)

Strings to ints/doubles: Integer.parseInt, etc.

The Math class and its methods (sqrt, random)

Composition

(2) Java API Documentation (System, Math, Scanner, String, PrintStream)

(3) Static Method Definition

Parameter declaration, return type, the return statement

Method scope

Void methods

Predicate methods

(4) Overloading Methods; signature and prototype

(E) Control

(1) Branching

Compound statements

if, if—else

Cascading if—else

Nested if, if—else

(2) Loops

Counting loops: for

Testing loops: while

Loop body logic: selection, counting, accumulation, extremes, adjacency logic

Alternate testing loops: do—while

(3) Input Loops

Headers and counting loops (for)

Sentinel (aka "trailer") loops (while)

End of data loops (while and hasNext, hasNextInt, hasNextDouble)

(4) Nested Loops

(F) Arrays

(1) Basics:

Declaration of array reference variables

Creation and initialization of arrays

Array access

(2) Traversals:

Sequential Processing

Assignment, selection, counting, accumulation, extremes, adjacency logic

Reversals

(3) Array-array operations (copying, comparing, arithmetic element-to-element ops)

(4) Direct indexed array element access

(5) Searching:

Sequential

Binary

(6) Sorting: one or more simple quadratic sorts (selection, bubble, ...)

(G) External Files

(1) File names vs File objects vs File streams

(2) Scanner constructor with File object

(3) The importance of close

(H) Using the JAVA API Documentation

(1) File names vs File objects vs File streams