AP Computer Science Principles Exam Reference Sheet Quiz

Instruction Text

• a ← expression assigns a copy of the result of the expression to the variable a.
• DISPLAY(expression) displays the value of the expression, followed by a space.
• INPUT() accepts a value from the user and returns the input value.

Arithmetic Operators and Numeric Procedures

• Arithmetic operators (+, *, /, etc.) perform arithmetic operations on a and b.
• a MOD b evaluates to the remainder when a is divided by b.
• The MOD operator has the same precedence as other operators.
• The order of operations used in mathematics applies when evaluating expressions.

Random Number Generation

• RANDOM(a, b) generates and returns a random integer from a to b.
• Each result is equally likely to occur.

Relational and Boolean Operators

• Relational operators: =, ≠, >, <, ≥, and ≤.
• These operators are used to compare values.

Order of Operations

• The order of operations used in mathematics applies when evaluating expressions.
• This means that expressions are evaluated in the following order: parentheses, exponents, multiplication and division, and addition and subtraction.

Test your knowledge of the AP Computer Science Principles Exam Reference Sheet for Fall 2020. Questions cover topics like assignment, display, and input statements in pseudocode.