AP Computer Science Revised Questions and Answers
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Double - โโโA Java reserved word that represents a primitive floating point
numeric type, stored using 64 bits in IEEE 754 format. Ex. 4.23
in - โโโA java reserved word for a primitive data type, stored using 32 bits in two's
complement format. Ex. 5
Boolean - โโโA Java reserved word for a logical primitive data type that can only
take the values "True" or "False".
string literal - โโโA primitive value used in a program.
Ex. ("Hello")
casting - โโโMost general form of converting in Java
Ex. dollars = (in) money
narrowing conversion - โโโA conversion from one data type into another in which
information could be lost. Converting from "double" to an "in" is a narrowing
conversion
strongly typed - โโโAssigned values must correspond to the declared type.
// - โโโComments a line of code in Java that will not be run with the program. More
of a side note.
//Hello
% - โโโRemainder operator.
Operator Precedence Hierarchy - โโโThe order in which operators are evaluated
in an expression.
primitive data - โโโCharacters with letters, or numbers: in, double, Booleans
constant - โโโA value that cannot be changed. Used to make more code more
readable and to make changes easier. Defined in Java using the "final" modifier.
final - โโโA Java reserved word that is a modifier for classes, methods, and
variables. A "final" variable is a constant
void - โโโA Java reserved word that indicates that no value is returned.
main - โโโMethod that appears within a class, it invokes other methods.
