Unit 4 Variables, Conditionals & Functions CS20-21

An ordered sequence of characters.

• Logical Operator

• Relational Operator

• Selection

• String

NOT, AND, and OR, which evaluate to a Boolean value.

• Assignment Operator

• Comparison Operator

• Logical Operator

• Relational Operator

Determines which parts of an algorithm are executed based on a condition being true or false

• Logical Operator

• Relational Operator

• Selection

• String

Used to test the relationship between two variables, expressions, or values. A comparison using a relational operator evaluates to a Boolean value. For example: =, ≠, >, <, ≥, and ≤

• Assignment Operator

• Comparison Operator

• Logical Operator

• Relational Operator

Allows a program to change the value represented by a variable

• Assignment Operator

• Comparison Operator

• Logical Operator

• Relational Operator

<, >, <=, >=, ==, != indicate a Boolean expression

• Assignment Operator

• Comparison Operator

• Logical Operator

• Relational Operator

Part of most programming languages and include addition, subtraction, multiplication, division, and modulus operators.

• Arithmetic Operator

• Assignment Operator

• Logical Operator

• Relational Operator

A combination of operators and values that evaluates to a single value

• Boolean Expression

• Boolean Value

• Concatenation

• Expression

Joins together two or more strings end-to-end to make a new string.

• Boolean Expression

• Boolean Value

• Concatenation

• Expression

Evaluates to either true or false

• Boolean Expression

• Boolean Value

• Concatenation

• Expression