Conditional Examples

Learn how to make decisions in your programs with if statements and conditional logic.

Age Classification

Classify people by age using if statements

Beginner

age is equal to 18

if age is less than 13 then
print "Child"
endif

if age is greater than 12 then
if age is less than 20 then
print "Teenager"
endif
endif

if age is greater than 19 then
print "Adult"
endif

Temperature Check

Weather advice based on temperature using if-else

Beginner

temperature is equal to 75

if temperature is greater than 30 then
print "It's hot! Stay hydrated."
else
print "Weather is pleasant."
endif

if temperature is less than 0 then
print "It's freezing! Wear warm clothes."
else
print "No need for heavy winter gear."
endif

Grade Calculator

Assign letter grades based on numerical scores

Intermediate

score is equal to 85

if score is greater than or equal to 90 then
grade is equal to "A"
else
if score is greater than or equal to 80 then
grade is equal to "B"
else
if score is greater than or equal to 70 then
grade is equal to "C"
else
if score is greater than or equal to 60 then
grade is equal to "D"
else
grade is equal to "F"
endif
endif
endif
endif

print "Score: " + score
print "Grade: " + grade

Number Comparison

Compare two numbers using multiple conditions

Intermediate

a is equal to 15
b is equal to 10

if a is equal to b then
print "Numbers are equal"
else
if a is greater than b then
print a + " is greater than " + b
else
print a + " is less than " + b
endif
endif

if a is not equal to b then
difference is equal to a minus b
if difference is greater than 0 then
print "Difference: " + difference
else
difference is equal to b minus a
print "Difference: " + difference
endif
endif

Comparison Operators Reference

All the comparison operators you can use in conditional statements

Equality

is equal to - Checks if values are the same

is not equal to - Checks if values are different

Magnitude

is greater than - Checks if first value is larger

is less than - Checks if first value is smaller

Inclusive Comparisons

is greater than or equal to

is less than or equal to

Conditional Structure

if ... then - Start a condition

else - Alternative branch

endif - End the condition

Tips for Writing Conditionals

Tip

Always close your if statements

Every "if" statement must have a corresponding "endif".

Tip

Use nested conditions carefully

Too many nested if statements can make code hard to read. Consider alternatives.

Tip

Test edge cases

Make sure your conditions handle boundary values correctly.