Comp Sci Semester 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| coodinate | variable that specifies a location in a 2 dimensional graphical window
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| traverse | to iterate through all the elements of a set performing a similar operation on each
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| instance | an example from a category. Every object is an instance of some class
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| awt | the Abstract Window Toolkit, one of the biggest and most commonly used packages in Java
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| exception | a run-time error
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| index | a variable or value used to select one of the members of an ordered set, like a character from a string
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| object | collection of related data that comes with a set of methods that operate on it
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| counter | a variable used to count something, usually initialized to zero and then incremented
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| current object | the object on which an object method is invoked. Inside the method, the current object is referred to as this
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| object method | a method that is involved on an object, and that operates on that object. Object methods do not have the keyword static
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| pixel | unit in which coordinates are measured
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| explicit | anything that is spelled out completely
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| bounding box | a common way to specify the coordinates of a rectangular area
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| package | a collection of classes
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| implicit | anything that is left unsaid or implied
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| class method | a method with the keyword static
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| instance variable | a variable defined in a class for which each instantiated object of the class has a separate copy
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| reference | a value that indicates an object
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| aliasing | the condition when 2 or more variables refer to the same object
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| garbage collection | the process of finding objects that have no references and reclaiming their storage space
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| state | a complete description of all the variables and objects and their values at a given point during the execution of a program
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| state diagram | a snapshot of the state of a program shown graphically
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| throw | cause an exception
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| stack trace | a report that shows the state of a program when an exception occurs
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| prototype | the first line of a method
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| increment | increase value by one
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| decrement | decrease value by one
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| body | statements inside the loop
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| loop | a statement that executes repeatedly while some condition is satisfied
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| infinite loop | loop whose condition is always true
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| iteration | one pass through the loop
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| encapsulate | to divide a large complex program into components and isolate components from each other
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| local variable | variable that is declared inside a method and that only exists within that method
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| generalize | to replace something unnecessarily specific with something appropriately general
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| program development | a process to writing programs
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| return type | the part of a method declaration that indicates what type of value the method returns
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| return value | the value provided as the result of a method invocation
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| dead code | part of code that can never be executed
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| scaffolding | code that is used during program development but is not part of the final version
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| void | a special return type that doesn't return a value
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| overloading | having more than one method with the same name but different parameters
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| boolean | a type of variable that can only return true or false
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| flag | a variable that records a condition or status information
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| conditional operator | an operator that compares two values and produces a boolean
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| logical operator | an operator that combines boolean values and produces boolean values
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| modulus | an operator that works on integers and yields the remainder when one number is divided by another
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| chaining | a way of joining several conditional statements in sequence
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| nesting | putting a conditional statement inside one or both branches of another conditional statement
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| typecast | an operator that converts from one type to another
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| recursion | the process of invoking the same method you are currently executing
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| base case | a condition that causes a recursive method not to make a recursive call
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| initialization | a statement that declares a new variable and assigns a value to it at the same time
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| floating point | a type of variable that can contain fractions as well as variables
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| class | a collection of methods
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| method | a named sequence of statements that performs a useful function
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| parameter | a piece of information in a method requires before you can run it
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| argument | a value that you provide when you provide a method
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| frame | a structure that contains a methods parameters and variables
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| invoke | cause a method to execute
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| variable | a named storage location for values
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| value | a number or string that can be stored in a variable
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| type | a set of values
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| keyword | a reserved word used by the compiler to parse programs
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| declaration | a statement that creates a new variable and determines its type
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| assignment | a statement that assigns a value to a variable
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| expression | a combination of variables, operators, and values
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| operator | a symbol that represents a computation like addition, multiplication, or string concatenation
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| operand | one of the values on which an operator operates
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| precedence | the order in which the operands are evaluated
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| concatenate | to join two operands end to end
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| source code | a program in a high level language before being compiled
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| object code | the output of the compiler
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| byte code | special kind of code used for Java
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| statement | a part of a program that specifies a computation
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| library | a collection of class and method definitions
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| bug | an error in the program
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| syntax | the structure of a program
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| semantics | the meaning of a program
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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