Map<String,Integer>caseInsensitiveTreeMap=newTreeMap<>(String.CASE_INSENSITIVE_ORDER);caseInsensitiveTreeMap.put("AA",1);//{AA=1}caseInsensitiveTreeMap.put("aa",2);//{AA=2} We can also verify the case-insensitive nature by removing a key in a different case. Post this removal, the si...
* String.CASE_INSENSITIVE_ORDER:相当于传入一个比较器,功能类似于compare */ Map<String, Object> map = new TreeMap<String, Object>(String.CASE_INSENSITIVE_ORDER); map.put("AAA", "AAAAAAAAAA"); map.put("AAa", "aaaaaaaaaa"); map.put("MMM", "MMMMMMMMMMM"); map.put("MMm", "mmmmm...
java.lang.Object java.util.AbstractMap<K,V> java.util.HashMap<String,V> oracle.stellent.ridc.common.util.CaseInsensitiveKeyHashMap<V>All Implemented Interfaces: Serializable, Cloneable, Map<String,V>public class CaseInsensitiveKeyHashMap<V> extends HashMap<String,V>...
MAP(object, string, int, int):四个参数分别是索引值,数据集的名字,索引值所在列序号,返回值所在列序号。根据数据集的名字,找到对应的数据集,找到其中索引列的值为key所对应的返回值。数据集的查找方式是依次从报表数据集找到服务器数据集。索引列序号与返回值序列号的初始值为1。示例:MAP(1001, "employee", ...
请注意,CaseInsensitiveString类实现了Comparable <CaseInsensitiveString>接口。 这意味着CaseInsensitiveString引用只能与另一个CaseInsensitiveString引用进行比较。 当声明一个类来实现Comparable接口时,这是正常模式 在本书第二版中,曾经推荐如果比较整型基本类型的属性,使用关系运算符“<”和“>”,对于浮点类型基本类型的...
private static void mapToList(){ Map<Integer, TestEntity> map = new HashMap<>(); for (int i = 0; i < 4; i++) { TestEntity testEntity = new TestEntity(); testEntity.setId(i); testEntity.setName("name-"+i); map.put(i, testEntity); } // 直接获取map的key的set集合 Set<...
get(mapKey)); } } DBObject dbObject = mongoDao.findOne(query,collectionName); if(dbObject!=null){ return dbObject.toMap(); } return webSiteInfo; } 注意事项: mongodb模糊查询时,Pattern pattern = Pattern.compile("^.*" + param.get("keyword") +".*$", 这种方式存在bug, 容易漏掉数据 ...
super T, String> f, String words) { String regex = SPACE.splitAsStream(words) .map(Pattern::quote).collect(Collectors.joining("|")); Predicate<String> sp = Pattern.compile(regex, Pattern.CASE_INSENSITIVE).asPredicate(); ...
(Exception e) { } return null; } public int addNovel(Novel novel) { int id = mapKey.incrementAndGet(); novel.setId(id); novels.put(id, novel); return id; } private void populate() { InputStream in = sctx.getResourceAsStream(this.fileName); // Convert novel.db string data into...
Comparator<Person> cmp = Comparator.comparing( Person::getLastName, String.CASE_INSENSITIVE_ORDER); Type Parameters: T- the type of element to be compared U- the type of the sort key Parameters: keyExtractor- the function used to extract the sort key ...