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Ohio State: Software I (CSE 2221) – Questions and answers
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Ohio State: Software I (CSE 2221) – Questions and answers
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Ohio State: Software I (CSE 2221)– Questions and answers
What command is necessary after you are done using a
SimpleReader/SimpleWriter?
this_____ - - this.close();
- variable - - the name of a "location" that "stores" a value of a particular
type
- type - - the name of the set of all possible values that a variable might
have
- program variable - - has a particular value at any one time during program
execution, and that value (generally) may change at other times
- mathematical variable - - an arbitrary but fixed value
- program type - - has a corresponding mathematical type that models it
- declare - - providing a name for a location to store its value, and indicate
its program type
- initialize - - assigning a variable its value
- literal - - a data value appearing in a program
- constant - - a variable whose value is initialized and never changed
- operator - - a symbol (or combination of a couple symbols) that is used
with variables and values to simplify how you write certain program
expressions
- expression - - a "syntactically well-formed and meaningful fragment"
(roughly analogous to a word in natural language)
- statement - - a "smallest complete unit of execution" (roughly analogous
to a sentence in natural language).
- assignment statement - - copies the value of the expression on the right
side of the assignment operator to the variable on the left side
- block - - any sequence of zero or more statements enclosed in {...}
, - conditional statement - - if, if-else, if-else-if, switch...
- loop statement - - while, for, do-while
- random sampling - - class of computational methods to estimate results;
"throwing darts"
- static method - - a block of code with a name, using which it can be called
(invoked) to perform its computation, then "takes over" execution when it is
called, until it returns to the calling program at the point it was called
- path of execution - - going through a method, ending in a return
statement with an expression of the return type of the method
- scope - - the block where variables are declared
- call by copying - - argument values are copied into formal parameters
- call by value - - argument values are copied into formal parameters
- array - - a group of similar variables, all of the same typ, and with
systematically related names that involve special syntax using [...]
- array element - - acts like a single variable of the type used in the
declaration
- system - - any part of anything that you want to think about as an
indivisible unit
- interface - - a description of the "boundary" between a system and
everything else, that also describes how to think about that system as a unit
- subsystem - - a system that is used inside, i.e., as a part of another
system
- client - - a person viewing a system "from the outside" as an indivisible
unit
- implementer - - a person viewing the system "from the inside" as an
assembly of subsystems/components
- information hiding - - a technique for describing system behavior in which
you intentionally leave out "internal implementation details" of the system
- abstraction - - a technique in which you create a valid cover story to
counteract the effects of hiding some internal implementation details
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