LRUMap 使用
private static void getMap(){
??LRUMap cache? =?? new? LRUMap( 5? );??????
?? //? Populate the cache with 5 stock prices??
??cache.put(? " MSFT " ,? new? Float(? 0.03? ) );?
??cache.put(? " TSC " ,? new? Float(? 0.001? ) );?
??cache.put(? " LU " ,? new? Float(? 23.30? ) );?
??cache.put(? " CSCO " ,? new? Float(? 242.20? ) );?
??cache.put(? " P " ,? new? Float(? 10.23? ) );?
????????
?? //? Now use some of the entries in the cache
??Float tscPrice? =? (Float) cache.get(? " TSC "? );
??Float cscoPrice?? =? (Float) cache.get(? " CSCO "? );?
??Float msPrice? =? (Float) cache.get(? " MSFT "? );?
??Float luPrice? =? (Float) cache.get(? " LU "? );?
??Float pPrice? =? (Float) cache.get(? " P "? );?
??Float msPrice2? =? (Float) cache.get(? " MSFT "? );?
?????
?? //? Add another price to the Map, this should kick out the LRU item.??
??cache.put(? " AA " ,? new? Float(? 203.20? ) );?
??
??System.out.println(cache.size()+"cscoPrice:"+(Float) cache.get(? " CSCO "? )
????+"\tmsPrice:"+(Float) cache.get(? " MSFT "? )+"\t\ntscPrice:"+(Float) cache.get(? " TSC "? )
????+"\tluPrice:"+(Float) cache.get(? " LU "? )+"\tpPrice:"+(Float) cache.get(? " P "? )
????+"\tmsPrice2:"+(Float) cache.get(? " MSFT "? )+"\tAA:"+(Float) cache.get(? " AA "? ));
??//return cache;
?}
?
?
LRUMap的容量只设置为5，所以在第六个值插入的时候，会清除第一个get的数据
如果没有get操作，则第一个put的值会被清除
