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CSE 2221 Midterm 1 Review Exam/79 questions with answers
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CSE 2221 Midterm 1 Review Exam/79 questions with answers
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CSE 2221 Midterm 1 ReviewExam/79 questions with answers
Algorithm - - step-by-step description on how to solve a problem
- Computer Program - - tells a computer, in minute detail, the sequence of
steps that are needed to fulfill a task
- RSS 2.0 - - well-formed XML
- <item> in RSS - - must have <title> and <description> tag
- label() method in XML - - gives the name of the that element
- Compile-time error - - Occur due to inaccuracies in the code, before the
program has compiled
- Run-time error - - Syntactically correct, and the program runs, but take an
action the programmer didn't intend; sometimes lead to program crashes
- Classes - - fundamental building blocks of java program
- Methods - - Part of classes, contain a sequence of instructions
- public static void main (String [] args) - - "Main" program where most
statements are executed
- close() - - method to close input/output stream; must always close
input/output stream
- concatenated - - joining two strings together
- literals - - values that literally appear in your program (like "true" for a
boolean variable)
- variable - - name of a "location" that stores a "value" of a particular "type"
- type - - name of the set of all possible values a variable might have
- program variable - - has a particular value during program execution, but
that value may change during any time
- mathematical variable - - has an arbitrary but fixed value
, - program type - - has mathematical type that models it
- Declaring a variable - - must provide a name for its location to store a
value, and its program type
- Initializing a variable - - To initialize a variable, you assign it a value
- Constant - - value is initialized and never changed; have "final in front of
them (Ex. final int pi = 3.14;)
- Operator - - symbol(s) that is used with variables and values to simplify
how you write certain program expressions
- Expression - - syntactically well-formed and meaningful fragment (Ex.
keyBoardIn.nextLine()); analogous to a word in English
- Statement - - smallest complete unit of execution; terminated with a semi-
colon; analogous to a sentence in English (j+=7;)
- Assigment statement form - - variable = expression;
- block - - any sequence of zero or more statements enclosed in a set of
{...}
- Conditional/selection statements - - if;if-else;if-else-if;switch
- Loop/iteration statements - - for;while; do-while
- Best practice for (b==true) - - b
- Best practice for (b==false) - - !b
- test - - the condition a while loop or if-else structure
- To create a set of random values in a range - - (Math.random()*(max-min))
+ min
- To check whether a point lies in a circle - - if(x*x + y * y <= radius)
{
hits++;
}
(where x = min + (max-min)*Math.random() and y = min + ( max-
min)*Math.random()
- static method - - a block of code with a name, that can be "called" to
perform its computation
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