05-if-elseif-else.jl

# if

if 5 > 2
    println("5 greater than 2")
end

# else

if 5 < 2
    println("5 greater than 2")
else
    println("5 lower than or equal to 2")
end

# if-elseif-else

x = 2

if x > 2
    println("x higher than 2")
elseif x < 2
    println("x lower than 2")
elseif x == 0
    println("x is equal to 0")
else
    println("x is equal to 2")
end

# if-elseif-else Exercises

# 1: Test if a number is a multiple of 3, 5 or 7
number = rand(1:100)

if number % 3 == 0
    println("the number is divisible by 3")
elseif number % 5 == 0
    println("the number is divisible by 5")
elseif number % 7 == 0
    println("the number is divisible by 7")
else
    println("the number is not divisible by 3, 5 or 7")
end



# 2: Print which quadrant in the cartesian plane a point is located
x, y = rand(-1.0:0.1:1.0, 2)

if x > 0 && y > 0
    println("x and y are in the first quadrant of the cartesian plane")
elseif x < 0 && y > 0
    println("x and y are in the second quadrant of the cartesian plane")
elseif x < 0 && y < 0
    println("x and y are in the third quadrant of the cartesian plane")
elseif x > 0 && y < 0
    println("x and y are in the fourth quadrant of the cartesian plane")
else
    println("x and y are at the origin or at one of the axis of the cartesian plane")
end