Test 2 Topics and Notes Fall 20 CSE 1310 Tiernan

Test 2 is comprehensive for all material covered so far.

Test 2 is open book, open notes including electronic books and notes. Anything printed or handwritten is OK including the textbook.

Respondus Lockdown Browser and a webcam are required for the test.

Practice Test for Test 2 will be posted.

NO COMPILERS may be used during the test.

C elements you CANNOT use on Test 2:

Cannot use break except in a switch

Cannot use topics not covered in class yet

Textbook Material covered on Test 2:

Ch. 1 – 3 from Think-C Downey Scheffler

Ch. 4.1 -4.6 from Think-C Downey Scheffler

Ch. 5 – 8 from Think-C Downey Scheffler

Topics that could be on Test 2:

Declaring functions

Function headers incl. return type, name, parameter list

Local scope of variables in functions

return statement

with return type void

with other return types

Calling functions

Passing parameters (or arguments)

Pass by value

Saving return values from functions

Purpose of creating functions

Reduce duplication of code

Reduce likelihood of errors when performing the same task

Simplifying calling functions by moving blocks of detailed code to functions

Examples of uses for functions:

Error check groups of data

Process data in some way (find an average, calculate a summation, etc.)

Declaring arrays

Data type, location of the square brackets, array name

char arrays = C strings

Initializing data in arrays

Using = { element1, element2, ..} notation

Initializing char arrays with "string values"

Assigning data into array elements

Index values for elements

First index value

Last index value

Finding array size – declared size vs. number of useful values in array

Passing arrays to functions

Control structures for “iterating” over an array,

i.e. going through every element of an array

loop boundaries for control structures

Processing every element in an array

Ex. finding a summation, averaging, printing, searching, comparing

C string functions

strcmp

strcpy

strlen

strtok

strcat

Additional topics added after Monday office hours:

Multi-dimensional arrays

Files

Input files –

declaring a file variable

connecting a file for reading

reading from a file

Questions asking about Bubble sort code

Topics from Test 1 that could be on Test 2:

Output statements with printf

Input with scanf – formatted reading to specific data types

Variables

Data types

Naming

Declaring

Initialization and assignment

Arithmetic operators incl. special cases of

Integer division

Shortcut operators

Increment/decrement operators

Calculation of numeric values through implemented code

Relational operators (<, >, ==, !=, >=, <=)

Logical operators (||, &&, !)

Algorithms

Pseudocode

Reading code and hand executing it, i.e. working through it to figure out what it does

Writing code

Verifying elements of a program with printing

Three types of control structures - Sequential, Selection, Repetition

if, if-else, nested if-else

while loop

for loop

switch

Control structures inside other control structures

Less likely:

Common looping algorithms

Nested loops

do-while loop