This document is a beginner's guide to learning Ruby that includes a table of contents and examples of Ruby code snippets covering topics like loops, arrays, methods, conditionals, and ranges. It introduces Ruby concepts and provides short code examples to demonstrate different language features like iterating over arrays, reducing arrays, defining and calling methods, checking for inclusion in arrays, and converting between data types. The document aims to help beginners learn Ruby basics through explanatory code samples.

1. Ruby-Cheatsheet
A beginner's guide to learning Ruby
github.com/lifeparticle/Ruby-Cheatsheet

2. HI!
"ZAMAN".capitalize
Zaman

3. TABLEOFCONTENTS

5. int [] a = {12,45,56,35};
for (int n : a) {
System.out.println(n);
}
[12,45,56,35].each { |n| puts n }
puts [12,45,56,35].join("n")
[12,45,56,35].each do |n|
puts n
end

6. numbers = [2, 2, 2, 2,
2]
sum = 0
for value in numbers
sum += value
end
puts sum
numbers = [2, 2, 2, 2,
2]
puts numbers.reduce(:+)

7. def sum (a, b)
10
end
sum 5, 5
def sum (a, b)
a + b
end
sum 5, 6
def sum (a, b)
return a + b
end
sum 5, 6

8. ['a','e','i','o','u'].include? 'a'
true
name = "ZAMAN"
name.downcase
puts "#{name}"
ZAMAN
name.downcase!
puts "#{name}"
zaman

9. numbers = [*1..10]
[1, 2, 3, 4, 5, 6,
7, 8, 9, 10]
range = 1...10
range.to_a
[1, 2, 3, 4, 5, 6,
7, 8, 9]
range = 1..10
range.cover?(5)
true
range = 1..10
range.to_a
[1, 2, 3, 4, 5, 6,
7, 8, 9, 10]

10. def method_name(floors, *values)
# evaluate business logics
floors.reduce(:+)
end
method_name([5, 2, 6, 87], "alarm alarm", "false alarm")
method_name([1, 1, 1, 1, 1, 1, 1, 1, 1], "not a drill")

11. temp = 19
if temp >= 25
puts "hot"
elsif temp < 25 && temp >= 18
puts "normal"
else
puts "cold"
end
name = "rob"
unless name == "bob"
puts "hello stranger"
else
puts "hello bob"
end
count = 1
puts "hello world" if count == 1

12. Does anyone have any questions?
mahbub.ninja
THANKS