var x = 0;
while x < 10 { print "\(x)" //prints x until x < 10 evaluates to false x = x + 1
}

var counter = 0
while true { print("Counter is now \(counter)") counter += 1 if counter == 556 { break }
}

while (condition){ // body of loop
}

// program to display numbers from 1 to 5
// initialize the variable
var i = 1, n = 5
// while loop from i = 1 to 5
while (i <= n) { print(i) i = i + 1
}