class Test

	def main
		d as decimal = 1.57
		assert d.rjust(5, 'N1') == '  1.6'
		f as float = 1.57f
		assert f.rjust(6, 'N1') == '   1.6'


extend Object

	def rjust(width as int, format as String) as String
		obj = this to dynamic
		return obj.toString(format).padLeft(width)  # .toString is defined by Object, but subclasses may overload it