ExamplePrograms.md

Example programs

Hello World:

print "Hello World";

Greet the user after typing in the name:

print "Please type in your name:";
var name = read();
print "Hello " + name;

Prints the current time:

for (var i = 0; i < 60; i++) 
{
	print clock();
	wait(1);
	clear();
}

Creates a counter:

fun makeCounter() 
{
  	var i = 0;
  	fun count() 
	{
    		return i = i + 1;
  	}
  	return count;
}

var counter = makeCounter();
print counter(); // "1".
print counter(); // "2"

Print the first 10 Fibonacci Numbers:

fun fibonacci()
{
	var x = 0;
	var temp = 0;
	var b = 1;
	fun number()
	{
		temp = x;
		x = b;
		b = temp + x;
		return temp;
	}
	return number;
}

var fibo = fibonacci();
for (var j = 0; j < 10; j++) 
{
	print fibo();
}

Count down from 10 to zero using recursion

fun Countdown(x)
{
	if(x >= 0)
	{
		print x;
		wait(1);
		Countdown(x--);
	}
}
Countdown(10);

Class representing a Rectangle:

class Rectangle
{
	init(x, y)
	{
		this.x = x;
		this.y = y;
	}
	area()
	{
		return this.x * this.y * 0.5;
	}
}  

Single Linked List

class Node
{
	init(value, nextNode)
	{
		this.value = value;
		this.nextNode = nextNode;
	}
}

class SingleLinkedList
{
	init()
	{
		this.head = nil;
	}

	addLast(value)
	{
		if(this.head == nil)
		{
			this.head = Node(value, nil);
			return;
		}
		var current = this.head;
		while(current.nextNode != nil)
		{
			current = current.nextNode;
		}
		current.nextNode = Node(value, nil);
	}

	addFirst(value)
	{
		this.head = Node(value, this.head);
	}

	printList()
	{
		var current = this.head;
		while(current != nil)
		{
			println current.value;
			current = current.nextNode;
		}
	}
}

var list = SingleLinkedList();
list.addFirst(5);
list.addFirst(10);
list.addFirst(15);
list.printList();