i = 0
while i < 4
  puts("i = #{i}")
  i = i + 1
end

i = 0
i = 1
i = 2
i = 3

i = 0
until i >= 4
  puts("i = #{i}")
  i = i + 1
end

array = ['first', 'second', 'third']
array.each do |x|
  puts(x)
end

first
second
third

ArrayList list = new ArrayList();
list.add("first");
list.add("second");
list.add("third");
 
for( Iterator i = list.iterator(); i.hasNext();) {
  System.out.println(i.next());
}

(1..10).each do |i|
   puts i
end

name = ['george', 'mike', 'gary', 'diana']
 
name.each do |name|
  if name == 'gary'
    puts('Break!')
    break
  end
  puts(name)
end

george
mike
Break!

name = ['george', 'mike', 'gary', 'diana']
 
name.each do |name|
  if name = 'gary'
    puts('Next!')
    next
  end
  puts(name)
end

george
mike
Next!
diana