Logic and Flow Control

• Computer Science
• 9-12 Grade

Logic and Flow Control

What is Flow Control?

Flow control is how a computer moves from one task to another.

• if-else
• while
• for
• condition

If-Else Statement

If-Else tells the computer, IF something is true, do something, ELSE, do something ELSE.

While Loop

A while loop tells the computer to do something WHILE a condition is true.

For Loop

A for loop tells the computer to do something a specific number of times.

***Logical Operators ***

Logical operators tell the computer how to work with conditions.

Logical AND (&&) - Returns TRUE if both sides of the operator are true. 

ex ( true && true) = TRUE

Logical OR (||) - Return TRUE if any side of the operator is true. 

ex (true || false) = TRUE

ex (false || true) = TRUE

Logical NOT(!) - Returns the Opposite.

ex (true) = FALSE

ex (false) = TRUE

What is flow control?

1. The flow of if-else statements.
2. Flow control turns on the computer
3. A way to guide program execution.
4. Two or more logical operations

Which keyword tells the computer to loop as long as a condition is true?

1. While
2. If
3. Switch
4. &&

Which keyword tells the computer to do something, given that a condition is true

1. Int
2. Boolean
3. If
4. Break

When using the AND (&&) operator, how many parts of the condition must be True to pass?

1. One
2. Two
3. None
4. All

When using the Or (||) operator, how many parts of the condition must be True to pass?

1. One
2. Two
3. None
4. All