A Java Symbol Decoder

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A Java symbol decoder

This lists all the Java symbols and keywords found in Chapters 4-6 of the course notes. Page numbers refer to the page where they are introduced.

Symbols

The following are operators in Java, listed in order of precedence.

-!negation (p 26) logical not (negating a condition)
*/% multiplication (p 26) division (ignore remainder if both sides are integers) (p 26) remainder of division (modulo) (p 26)
+- addition (p 26) / string concatenation subtraction (p 26)
>=<=>< greater than or equal to (p 27) less than or equal to (p 27) greater than (p 27) less than (p 27)
==!= equals (p 27) not equals (p 27)
&&logical and (p 27)
||logical or (p 27)
=assignment (p 27)
We use the following non-operator symbols too.
'character constant (p 26)
"string constant (p 20)
[]array index (p 28)
()parentheses (p 28)
//begin a comment ended by end of line (p 19)
;statement termination (p 21)
{}statement block (p 21)

Keywords

We separate the keywords of Java into the words we actually use in class and the words we do not. (The latter only matter in that they're invalid variable names.)

Words we use:

boolean(p 25) break(p 31) char(p 25) class(p 19)
double(p 25) else(p 31) false(p 26) for(p 32)
if(p 30) int(p 25) new(p 28) public(p 20)
return(p 21) static(p 20) true(p 26) void(p 21)
while(p 31)

Words we do not use:

abstractbytebyvaluecasecastcatch
constcontinuedefaultdoextendsfinal
finalizefinallyfloatfuturegenericgoto
implementsimportinnerinstanceofinterfacelong
nativenulloperatorouterpackageprivate
protectedrestshortsuperswitchsynchronized
thisthrowthrowstransienttryvar
volatile

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