Programming Basics: Loops and Conditionals

True (A)

A variable is a named storage location in memory that holds a value which can change during program execution.

<p>string</p> Signup and view all the answers

<p>Integer = A whole number without a decimal Loop = A method to repeat a set of instructions Conditional Statement = An expression that evaluates to true or false Variable = A named space in memory to store data</p> Signup and view all the answers

<p>22</p> Signup and view all the answers

<p>The order is crucial because the first successful condition to evaluate as true will execute, preventing any subsequent conditions from being checked.</p> Signup and view all the answers

<p>To execute a block of code if a specific condition evaluates to True.</p> Signup and view all the answers

<p>The <code>elif</code> keyword checks additional conditions if the previous ones are False.</p> Signup and view all the answers

<p>This code assigns 'A' to the variable <code>grade</code> if the <code>score</code> is 90 or higher.</p> Signup and view all the answers

A loop repeats a block of code until a condition is met.

A statement that controls the flow of execution based on conditions.

If a condition is true, do one thing. If not, check another condition. If none are true, do something else.

A named storage location to hold data.

A sequence of characters (letters, numbers, symbols).

Executes code if a condition is True. If the condition is False, the code is skipped.

Provides an alternative code block to execute if the if condition is False.

Checks additional conditions sequentially after the if statement, only if the preceding conditions were False.

Allows you to handle different outcomes based on multiple conditions within a single statement.

The code blocks within if/elif/else statements are defined by indentation, which is essential for Python to correctly execute the code.

In the statement if number > 0: ..., the condition checked is whether the variable number is greater than 0.

The set of instructions that will be executed only if the corresponding if condition is evaluated to True.

Using one if/elif/else statement inside another to check multiple conditions in a hierarchical way. Each inner statement evaluates only if its outer condition is true.

Ensuring that the conditions in your if/elif/else statements are mutually exclusive. This prevents unnecessary checks and unexpected outcomes.

The order of elif statements within an if/elif/else block impacts the execution flow. The first successful condition will be executed, so strategically place them.

Symbols used to compare values in conditions of if/elif/else statements, including == (equal to), != (not equal to), > (greater than), < (less than), >= (greater than or equal to), <= (less than or equal to).

Combining comparison operators with and, or, and not to create more complex conditions. and requires both sides to be true, or only needs one, and not inverts the truth value.