/**
 * @author Ryan
 */
function HashMap(){
	this.map = {};
	this.length = 0;
};

HashMap.prototype.exist = function(key){
	return typeof this.map[key] != "undefined";
};

HashMap.prototype.put = function(key, val){
	if(!this.exist(key)){
		this.length++;
	}
	this.map[key] = val;
};

HashMap.prototype.get = function(key){
	if(this.exist(key)){
		return this.map[key];
	}

	return null;
};

HashMap.prototype.remove = function(key){
	if(this.exist(key)){
		this.length--;
		delete this.map[key];
	}
};

HashMap.prototype.clear = function(){
	this.map = {};
	this.length = 0;
};

HashMap.prototype.size = function(){
	return this.length;
};

HashMap.prototype.keySet = function(){
	var keys = new Array();
	for(var key in this.map){
		keys.push(key);
	}

	return keys;
};

HashMap.prototype.valSet = function(){
	var vals = new Array();
	for(var key in this.map){
		vals.push(this.map[key]);
	}

	return vals;
};

HashMap.prototype.showMe = function(){
	var sb = "";
	for(var key in this.map){
		sb = sb + " [" + key + "]=" + this.map[key];
	}

	return sb;
};