LinkedHashMap.java使用的字段是:finalbooleanaccessOrder;LinkedHashMap的构造函数是:publicLinkedHashMap(intinitialCapacity,floatloadFactor,booleanaccessOrder){super(initialCapacity,loadFactor);this.accessOrder=accessOrder;}我想知道字段accessOrder的用途。请举例说明accessOrder是“真”还是“假”。有没有其他方法可以更新已创建对象的accessOrder字段?