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Comp Sci Semester 1

TermDefinition
coodinate variable that specifies a location in a 2 dimensional graphical window
traverse to iterate through all the elements of a set performing a similar operation on each
instance an example from a category. Every object is an instance of some class
awt the Abstract Window Toolkit, one of the biggest and most commonly used packages in Java
exception a run-time error
index a variable or value used to select one of the members of an ordered set, like a character from a string
object collection of related data that comes with a set of methods that operate on it
counter a variable used to count something, usually initialized to zero and then incremented
current object the object on which an object method is invoked. Inside the method, the current object is referred to as this
object method a method that is involved on an object, and that operates on that object. Object methods do not have the keyword static
pixel unit in which coordinates are measured
explicit anything that is spelled out completely
bounding box a common way to specify the coordinates of a rectangular area
package a collection of classes
implicit anything that is left unsaid or implied
class method a method with the keyword static
instance variable a variable defined in a class for which each instantiated object of the class has a separate copy
reference a value that indicates an object
aliasing the condition when 2 or more variables refer to the same object
garbage collection the process of finding objects that have no references and reclaiming their storage space
state a complete description of all the variables and objects and their values at a given point during the execution of a program
state diagram a snapshot of the state of a program shown graphically
throw cause an exception
stack trace a report that shows the state of a program when an exception occurs
prototype the first line of a method
increment increase value by one
decrement decrease value by one
body statements inside the loop
loop a statement that executes repeatedly while some condition is satisfied
infinite loop loop whose condition is always true
iteration one pass through the loop
encapsulate to divide a large complex program into components and isolate components from each other
local variable variable that is declared inside a method and that only exists within that method
generalize to replace something unnecessarily specific with something appropriately general
program development a process to writing programs
return type the part of a method declaration that indicates what type of value the method returns
return value the value provided as the result of a method invocation
dead code part of code that can never be executed
scaffolding code that is used during program development but is not part of the final version
void a special return type that doesn't return a value
overloading having more than one method with the same name but different parameters
boolean a type of variable that can only return true or false
flag a variable that records a condition or status information
conditional operator an operator that compares two values and produces a boolean
logical operator an operator that combines boolean values and produces boolean values
modulus an operator that works on integers and yields the remainder when one number is divided by another
chaining a way of joining several conditional statements in sequence
nesting putting a conditional statement inside one or both branches of another conditional statement
typecast an operator that converts from one type to another
recursion the process of invoking the same method you are currently executing
base case a condition that causes a recursive method not to make a recursive call
initialization a statement that declares a new variable and assigns a value to it at the same time
floating point a type of variable that can contain fractions as well as variables
class a collection of methods
method a named sequence of statements that performs a useful function
parameter a piece of information in a method requires before you can run it
argument a value that you provide when you provide a method
frame a structure that contains a methods parameters and variables
invoke cause a method to execute
variable a named storage location for values
value a number or string that can be stored in a variable
type a set of values
keyword a reserved word used by the compiler to parse programs
declaration a statement that creates a new variable and determines its type
assignment a statement that assigns a value to a variable
expression a combination of variables, operators, and values
operator a symbol that represents a computation like addition, multiplication, or string concatenation
operand one of the values on which an operator operates
precedence the order in which the operands are evaluated
concatenate to join two operands end to end
source code a program in a high level language before being compiled
object code the output of the compiler
byte code special kind of code used for Java
statement a part of a program that specifies a computation
library a collection of class and method definitions
bug an error in the program
syntax the structure of a program
semantics the meaning of a program
Created by: gabefranklin12