Simple dynamic language interpreter written in Java

Usage:

java -jar lang.jar <path to source file>

Examples:

1 - Point class with some methods

class point
	def new(x,y)
		this.x = x
		this.y = y
	end

	def distanceTo(other)
		return ((this.x - other.x)^2 + (this.y - other.y)^2)^(1/2)
	end

	def _plus_(other)
		if other is point
			ret = point.new(this.x + other.x, this.y + other.y)
			return ret
		end
	end

	def str()
		return "(" + this.x + ";" + this.y + ")"
	end
end

p1 = point.new(5,3)
p2 = point.new(10,5)
puts("distance from " + p1.str() + " to " + p2.str() + " is " + p1.distanceTo(p2))
p3 = p1 + p2
puts(p1.str() + " + " + p2.str() + " = " + p3.str())

output:

distance from (5;3) to (10;5) is 5.385164807134504
(5;3) + (10;5) = (15;8)

2 - Bubble sort function

def bubbleSort(list)
	for i in range(0, size(list)-1)
		iMin = i
		for j in range(i, size(list)-1)
			if list[j] < list[iMin]
				iMin = j
			end
		end
		list[i], list[iMin] = swap(list[i], list[iMin])
	end
end

a=[1,4,2,5,3,45,42,3,2,65,23,65,89,6,454,689,4,4,2,76,4,676,9,6,5,76,34,4,2,76,23]
bubbleSort(a)
puts(a)

output:

[1, 2, 2, 2, 2, 3, 3, 4, 4, 4, 4, 4, 5, 5, 6, 6, 9, 23, 23, 34, 42, 45, 65, 65, 76, 76, 76, 89, 454, 676, 689]

3 - Count occurences in list

def count(element, list)
  count = 0
  for(e in list)
	if(e == element)
	  count += 1
	end
  end
  return count
end

list = [ 1, 2, 4, 7, 1, 2, 4, 7, 1, 2, 4, 7 ]
puts(count(7, list))

output:

3