AP comp-sci my brain #2 10/30 - 11/?

boolean value

either true or false

(every decision-making system uses boolean logic)

logical operators

not, and, or

• evaluate a boolean value. the operand for a logical operator is either a boolean expression or a single boolean value.

relationship operators 

≤, ≥, ==, =, <, > 

• used to test the relationship between two variables 

abstraction

knowing that something works but not knowing how it works

PRIMM

P- predict (look at code and guess what will happen before running it)

R- run (execute the code, see if your prediction is correct)

I- investigate (experiment by changing values and observing results)

M- modify (adapt the code to solve problems or meet different requirements)

M- make (create something new based on your understanding)

variable

storage container

Integer

First three letters of the word integer “int” is the code. a whole number used to complete a mathematical computation.

Nested conditional statements

Conditional statements within conditional statements

Conditional Loop

A loop that executes a block of statements until a Boolean condition evaluates to true, with the condition checked before each iteration: provided by the exam reference sheet as “REPEAT UNTIL(condition)”

Conditional statements

statements which affect the sequential flow of control by executing different statements based on the value of a Boolean expression.

Infinite loop

a conditional loop that continues indefinitely because the terminating condition never becomes true

Iteration

a repeating portion of an algorithm that repeats a specified number of times or until a given condition is met

while loop 

a type of conditional loop in the python language that repeatedly executes a block of statements as long as a Boolean condition remains true, with the condition checked before each iteration using the while keyword 

Counting loop

a loop that executes a block of statements a specified number of times; provided by the exam reference sheet as “REPEAT n TIMES”

for loop

a type of counting loop in the Python programming language that iterates over a sequence (such as a list, string, or range) or executes a specified number of times using the for keyword and in operator

How does the for loop know when to stop?

When would you use a for loop instead of a while loop?