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Index

Symbols append() method, arrays, 132, 144

arguments (parameters), 96–98, 101, 111
: (colon) arrays (lists), 130–134, 144, 285
in if/else branches, 22 adding items to, 138
in index of string, 43 counting occurrences of values in, 138
in while loops, 29 creating, 132, 134
{} (curly brackets), creating hashes, 153 extending, 132, 138
index (offset value) for, 132
= (equal sign), assignment operator, 4, 35
methods for, 138
== (equal sign, double), equal to operator, 4, 15 multi-dimensional arrays, 152
!= (exclamation point, equal sign), not equal to operator, removing items from, 138
30 reversing order of, 138, 140

() (parentheses) searching, 138
in format strings, 182 sorting, 136–140, 144
in function definition, 82 askokcancel message boxes, 306
% (percentage symbol), preceding format strings, 180–182 askquestion message boxes, 306
. (period), in library function request, 69 askretrycancel message boxes, 306
+ (plus sign), addition operator, 58 askyesnocancel message boxes, 304, 306
# (pound sign), preceding comments, 95, 205 assignment
> (right angle bracket), greater than operator, 62, 75 of multiple values, 122–124
of single values, 4, 35
[] (square brackets)
creating arrays, 132, 134 assignment operator (=), 4, 35
enclosing index of array, 132 associative arrays. (see hashes)
enclosing index of string, 42 automated testing, 389
enclosing key for hash, 153

A B

Bates, Bert (Head First Java), 388
abstraction, 93
Beighley, Lynn (Head First SQL), 170
addition operator (+), 58
bloated code, 81
algorithms, 393
books

this is the index 397