hbw-utils - ColUtils

世界上并没有完美的程序，但是我们并不因此而沮丧，因为写程序就是一个不断追求完美的过程。

ColUtils功能：

封装各种集合的创建，指定默认初始长度
封装各种Map的创建，指定默认初始长度
封装LinkedBlockingQueue的创建，也可指定长度

https://github.com/houbbbbb/utils

public class ColUtilsTest {@Testpublic void hashMapTest() {Map<String, Integer> map = ColUtils.newHashMap(String.class, Integer.class);map.put("a", 1);map.put("b", 2);System.out.println(map);System.out.println(map.getClass());}@Testpublic void concurrentHashMapTest() {Map<String, Integer> map = ColUtils.newConcurrentHashMap(String.class, Integer.class);map.put("a", 1);map.put("b", 2);System.out.println(map);System.out.println(map.getClass());}@Testpublic void propertiesTest() {Properties properties = ColUtils.newProperties();properties.put("a", "b");properties.put("c", "d");System.out.println(properties);System.out.println(properties.getClass());}@Testpublic void hashTableTest() {Hashtable<String, Integer> hashtable = ColUtils.newHashTable(String.class, Integer.class);hashtable.put("a", 1);hashtable.put("b", 2);System.out.println(hashtable);System.out.println(hashtable.getClass());}@Testpublic void treeMapTest() {Map<Integer, String> map = ColUtils.newTreeMap(Integer.class, String.class);map.put(2, "a");map.put(1, "b");System.out.println(map);System.out.println(map.getClass());Map<Count, String> map2 = ColUtils.newTreeMap(Count.class, String.class, new Comparator<Count>() {@Overridepublic int compare(Count o1, Count o2) {return o1.getAge().compareTo(o2.getAge());}});map2.put(new Count("a", 5), "a");map2.put(new Count("b", 6), "b");map2.put(new Count("c", 4), "c");System.out.println(map2);System.out.println(map2.getClass());}static class Count {public Count() {}public Count(String name, Integer age) {this.name = name;this.age = age;}private String name;private Integer age;public String getName() {return name;}public void setName(String name) {this.name = name;}public Integer getAge() {return age;}public void setAge(Integer age) {this.age = age;}@Overridepublic String toString() {return "Count{" +"name='" + name + '\'' +", age=" + age +'}';}}@Testpublic void arrayListTest() {List<String> ls = ColUtils.newArrayList(String.class);ls.add("a");ls.add("b");System.out.println(ls);System.out.println(ls.getClass());ls = ColUtils.newArrayList(String.class, "c", "d");System.out.println(ls);System.out.println(ls.getClass());ls = ColUtils.newArrayList(String.class, ls);System.out.println(ls);System.out.println(ls.getClass());}@Testpublic void linkedListTest() {List<String> ls = ColUtils.newLinkedList(String.class);ls.add("a");ls.add("b");System.out.println(ls);System.out.println(ls.getClass());ls = ColUtils.newLinkedList(String.class, "c", "d", "e");System.out.println(ls);System.out.println(ls.getClass());ls = ColUtils.newLinkedList(String.class, ls);System.out.println(ls);System.out.println(ls.getClass());}@Testpublic void vectorTest() {List<String> ls = ColUtils.newVector(String.class);ls.add("ab");ls.add("cd");System.out.println(ls);System.out.println(ls.getClass());ls = ColUtils.newVector(String.class, "k", "l", "m");System.out.println(ls);System.out.println(ls.getClass());ls = ColUtils.newVector(String.class, ls);System.out.println(ls);System.out.println(ls.getClass());}@Testpublic void hashSetTest() {Set<String> set = ColUtils.newHashSet(String.class);set.add("abc");set.add("def");System.out.println(set);System.out.println(set.getClass());set = ColUtils.newHashSet(String.class, "a", "c", "b", "a", "c");System.out.println(set);System.out.println(set.getClass());set = ColUtils.newHashSet(String.class, set);System.out.println(set);System.out.println(set.getClass());}@Testpublic void treeSetTest() {Set<String> set = ColUtils.newTreeSet(String.class);set.add("a");set.add("b");System.out.println(set);System.out.println(set.getClass());set = ColUtils.newTreeSet(String.class, "b", "a");System.out.println(set);System.out.println(set.getClass());set = ColUtils.newTreeSet(String.class, set);System.out.println(set);System.out.println(set.getClass());Set<Count> set1 = ColUtils.newTreeSet(Count.class, new Comparator<Count>() {@Overridepublic int compare(Count o1, Count o2) {return o1.getAge().compareTo(o2.getAge());}});set1.add(new Count("name", 3));set1.add(new Count("b", 5));set1.add(new Count("c", 4));System.out.println(set1);System.out.println(set1.getClass());set1 = ColUtils.newTreeSet(Count.class, new Comparator<Count>() {@Overridepublic int compare(Count o1, Count o2) {return o1.getAge().compareTo(o2.getAge());}}, new Count("d", 5), new Count("u", 3), new Count("e", 7));System.out.println(set1);System.out.println(set1.getClass());}@Testpublic void linkedBlockingQueueTest() {LinkedBlockingQueue<String> queue = ColUtils.newLinkedBlockingQueue(String.class);queue.offer("a");queue.offer("b");queue.offer("c");System.out.println(queue);System.out.println(queue.getClass());queue = ColUtils.newLinkedBlockingQueue(String.class, 2);queue.offer("a");queue.offer("b");queue.offer("c");System.out.println(queue);System.out.println(queue.getClass());}
}

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