总结:EMPTY_ELEMENTDATA表示容量为0的空ArrayList,而DEFAULTCAPACITY_EMPTY_ELEMENTDATA表示容量为默认值的空ArrayList。
ArrayList list2=newArrayList(); 第一种构造函数是这么写的: publicArrayList(intinitialCapacity){if(initialCapacity >0) {this.elementData =newObject[initialCapacity]; }elseif(initialCapacity ==0) {this.elementData = EMPTY_ELEMENTDATA; }else{thrownewIllegalArgumentException("Illegal Capacity: "+ initialCapac...
排错:java获取mysql数据库表字段,得到的是erialVersionUID,DEFAULT_CAPACITY,EMPTY_ELEMENTDATA...,程序员大本营,技术文章内容聚合第一站。
Brad, you mention changing the default size capacity of the ArrayList, but I assert that since the capacity of the ArrayList could never affect the correctness of the routine, its a "safe default" value, but a value like TaxRate, or even worse, ExchangeRate which could change daily, ...
网络默认初始容量;默认初始化容量 网络释义 1. 默认初始容量 软件开发常... ... default implementation 默认实现default initial capacity默认初始容量default marshalling 默认封送处理 ... www.cnblogs.com|基于54个网页 2. 默认初始化容量 ... 不用.HashMap 和 Hashtable 的默认初始化容量(default initial capac...
3.4 ArrayList 类的实现 theItems (AnyType []) new Object[ newCapacity ]; 1. 在创建更大数组时使用了强制类型转换 3.5 LinkedList 类的实现 加入空头节点和空尾节点避开了很多特殊情况 加入了集合被修改情况的监测modCount 3.6 栈 ADT 3.6.1 栈模型 ...
数组为EMPTY_ELEMENTDATA就走基于用户设置大小值进行1.5倍扩容(这里是空所以是0),数组为默认空DEFAULTCAPACITY_EMPTY_ELEMENTDATA就会走基于默认值的大小10扩容进行1.5倍扩容。 核心代码:如果是默认初始化空容量会走 if (elementData == DEFAULTCAPACITY_EMPTY_ELEMENTDATA) { minCapacity = Math.max(DEFAULT_CAPACITY, mi...
Map<String, String> map = mCapacityTierInfoMap.getOrDefault(tier, new HashMap<>()); map.put(workerName, FormatUtils.getSizeFromBytes(value)); mCapacityTierInfoMap.put(tier, map); 代码示例来源:origin: apache/ignite double leftCnt = cntrDistrib.getOrDefault(bucketId, lastLeftCntrVal); doubl...
newArrayListWithCapacity(tuple.size() + 1); CubeDimensions.convertNullToUnknown(tuple); result.add(tuple); iterativelyRollup(result, tuple); return bf.newDefaultBag(result); } 代码示例来源:origin: org.apache.pig/pig @Override public void visit(LOSort s) throws FrontendException { if (limit ...
privateMap<String, Double> mkSupervisorCapacities(Map<String, Object> conf) {Map<String, Double> ret =newHashMap<String, Double>();// Put in legacy valuesDouble mem = ObjectReader.getDouble(conf.get(Config.SUPERVISOR_MEMORY_CAPACITY_MB),4096.0);ret.put(Config.SUPERVISOR_MEMORY_CAPACITY_MB, ...