System.out.print(iterator.next() +""); } } } Compile ok, but run-time error occurs: Exceptioninthread"main"java.lang.ClassCastException: collection.Dog cannot be cast to java.lang.Comparable at java.util.TreeMap.put(Unknown Source) at java.util.TreeSet.add(Unknown Source) at collection....
Iterator<String> itr = LinkedHashSet.iterator(); while(itr.hasNext()) { String value = itr.next(); System.out.println("Value: "+ value); } Program Output. [A, B, C, D, E] true Value: A Value: B Value: C Value: E 5.2. Convert LinkedHashSet to Array Example Java example to...
1importjava.util.Collection;2importjava.util.HashSet;3importjava.util.Iterator;4publicclassTextIterator {5publicstaticvoidmain(String[] args){6Collection books=newHashSet();//无序序列,元素不可重复7books.add("世界你好");8books.add("你好世界");9books.add("你好Java");10System.out.println("...
A set backed by a red-black tree to keep the elements ordered with respect to the comparator. Implements Set, IteratorWithIndex, EnumerableWithIndex, JSONSerializer and JSONDeserializer interfaces. package main import "github.com/emirpasic/gods/sets/treeset" func main() { set := treeset.NewWi...
A set backed by a red-black tree to keep the elements ordered with respect to the comparator. Implements Set, IteratorWithIndex, EnumerableWithIndex, JSONSerializer and JSONDeserializer interfaces. package main import "github.com/emirpasic/gods/sets/treeset" func main() { set := treeset.NewWi...
importjava.util.LinkedHashSet; // Main class // LinkedHashSetExample publicclassGFG{ // Main driver method publicstaticvoidmain(String[]args) { // Creating an empty LinkedHashSet of string type LinkedHashSet<String>linkedset =newLinkedHashSet<String>(); ...
Learn about LinkedHashMap and LinkedHashSet in Java, their features, differences, and how to use them effectively in your Java applications.
本文整理了Java中java.util.LinkedHashSet.clear()方法的一些代码示例,展示了LinkedHashSet.clear()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。LinkedHashSet.clear()方法的具体详情如下:包路径:java.util.Linked...
JAVA集合Set之LinkedHashSet详解 LinkedHashSet是Set集合的一个实现,具有set集合不重复的特点,同时具有可预测的迭代顺序,也就是我们插入的顺序。 并且linkedHashSet是一个非线程安全的集合。如果有多个线程同时访问当前linkedhashset集合容器,并且有一个线程对当前容器中的元素做了修改,那么必须要在外部实现同步保证数据...
3. TreeSet Example TreeSet<Integer> tree = new TreeSet<Integer>(); tree.add(12); tree.add(63); tree.add(34); tree.add(45); Iterator<Integer> iterator = tree.iterator(); System.out.print("Tree set data: "); while (iterator.hasNext()) { ...