javascript 封装的仿java容器Map\List类
这只是实现了java中List和Map 中的部分方法,以后要用到其他方法会在添加
function HashMap(){ this.size=0; this.map=new Object();}HashMap.prototype.put=function(key,value){ if(!this.map[key]){ this.size++; } this.map[key]=value;};HashMap.prototype.get=function(key){ return this.isKey(key)?this.map[key]:null;};HashMap.prototype.isKey=function(key){ return (key in this.map);};HashMap.prototype.remove=function(key){ if( this.isKey(key) && (delete this.map[key])){ this.size--; } };HashMap.prototype.size=function(){ return this.size;};HashMap.prototype.find=function(_callback){ for(var _key in this.map){ _callback.call(this,_key,this.map[_key]); }};//Listfunction ArrayList(){this.size=0; this.list=new Object();};ArrayList.prototype.add=function(obj){this.list[this.size++];return this.size;};ArrayList.prototype.remove=function(index){if(this.size>index){delete this.list[index--];return this.size--;}return -1;};ArrayList.prototype.size=function(){return this.size;};ArrayList.prototype.get=function(index){return this.size>index?this.list[index]:null;};ArrayList.prototype.clear=function(){this.list=null;};ArrayList.prototype.contains=function(obj){return this.indexOf(obj)>=0?true:false;};ArrayList.prototype.indexOf=function(obj){for(var i=0;i<this.size;i++){if(this.list[i]==obj){return i;}}return -1;};ArrayList.prototype.isEmpty=function(){return this.size<0?true:false;};function HashSet(){this.size=0; this.set=new Object();};HashSet.prototype.add=function(obj){this.indexOf(obj)<0?this.set[this.size++]=obj:null;return this.size;};HashSet.prototype.remove=function(index){if(this.size>index){delete this.set[index--];return this.size--;}return -1;};HashSet.prototype.size=function(){return this.size;};HashSet.prototype.get=function(index){return this.size>index?this.set[index]:null;};HashSet.prototype.clear=function(){this.set=null;};HashSet.prototype.contains=function(obj){return this.indexOf(obj)>=0?true:false;};HashSet.prototype.indexOf=function(obj){for(var i=0;i<this.size;i++){if(this.set[i]==obj){return i;}}return -1;};HashSet.prototype.isEmpty=function(){return this.size<0?true:false;};