radians 241
Radio GUI exercise 63
RadioButton
control 24, 62, 566, 569
Checked
property 569
CheckedChanged
event 570
properties and events 569
Text
property 569
radius of a circle 294
RAM (Random Access Memory) 6
Range
method of class Enumerable
878
range variable of a LINQ query 374
Rational
class 433
Rational Numbers (exercise) 433
Read
method of class Console
701
read-only property 153
Reading sequential-access files 710
ReadLines
method of class File
891
readonly
keyword 417
ReadOnly
property of class NumericUpDown
580
ReadOnly
property of class TextBox
561
ReadToEnd
method of class StreamReader
731
real number 164
real part of a complex number 421
realization in the UML 495
“receiving” section of the computer 6
reclaim memory 416
Record for sequential-access file-processing applications 703
record key 9
rectangle 432
Rectangle
Class (exercise) 432
recursion 632
recursion step 274
recursive binary search 770
recursive call 274
recursive factorial 274
recursive linear search 770
recursive method 274
Recursive Power Calculation exercise 296
recursive Power
method 296
recursive step 771
reduce (functional programming) 869
redundant parentheses 89
refer to an object 277
reference 277
reference manipulation 773
reference type 277
reference type constraint class
824
Reference, output and value parameters 280
ReferenceEquals
method of object
462
refinement process 161
Regex
class 668
regular expression 692
reinventing the wheel 68
relational database table 895
relational operators 90
release resource 520
release unmanaged resources 502
remainder 86
Remove
method of class Dictionary
735
Remove
method of class LinkedList
860
Remove
method of class StringBuilder
687
RemoveAt
method of class ObjectCollection
618
RemoveRange
method of class List<T>
382
Repeat
method of class Enumerable
967
Replace
method of class StringBuilder
689
representational error in floating point 203
requirements 13
requirements of an app 211
reservations system 357
Reset
method of interface IEnumerator
849
ReshowDelay
property of class ToolTip
577
resource 576
Resources
class 576
REST web service 957
result of an uncaught exception 515
Result
property of class Task
949
resumption model of exception handling 516
rethrow an exception 525
reusable component 437
reuse 68
Reverse
extension method 672
Reverse
method of class Array
850
Reversing Digits exercise 295
RichTextBox
control 61
right align output 202
right child 795
RightToLeft
property of class MenuStrip
602
rise-and-shine algorithm 144
Ritchie, Dennis 18
robot 4
robust 84
robust application 508
Roku (Internet TV) 4
Roll a six-sided die 6,000,000 times 254
Roll a six-sided die 60,000,000 times 312
rolling two dice 260
Rounding to a Specific Decimal Place exercise 292
Rounding to Nearest Integer exercise 292
row in a database table 895
row objects representing rows in a database table 900
rows of a two-dimensional array 329
Ruby on Rails 19
Ruby programming language 19
rules for forming structured applications 222
rules of operator precedence 87
Run command in Windows 615
run mode 56
run-time logic error 84
running an app 615
running total 162
runtime class 491
runtime system 825