笔记备份:2025-08-21 20:37:10
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.obsidian/plugins/keep-the-rhythm/data.json
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.obsidian/plugins/keep-the-rhythm/data.json
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.obsidian/plugins/novel-word-count/data.json
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.obsidian/plugins/novel-word-count/data.json
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@@ -463,20 +463,20 @@
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@@ -489,6 +489,22 @@ public class Test {
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## 集合
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### 具体集合
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| 集合类型 | 描述 |
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|:--------------- |:---------------------------------------------------- |
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| ArrayList | 一种可以动态增长和缩减的索引序列 |
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| LinkedList | 一种可以在任何位置进行高效地插入和删除操作的有序序列 |
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| ArrayDeque | 一种用循环数组实现的双端队列 |
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| HashSet | 一种没有重复元素的无序集合 |
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| TreeSet | 一种有序集合 |
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| EnumSet | 一种包含枚举类型值的集 |
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| LinkedHashSet | 一种可以记住元素插入次序的集 |
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| PriorityQueue | 一种允许高效删除最小元素的集合 |
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| HashMap | 一种存储键/值关联的数据结构 |
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| TreeMap | 一种键值属于枚举类型的映射表 |
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| LinkedHashMap | 一种可以记住键/值项添加次序的映射表 |
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| WeakHashMap | 一种其值毫无用武之地后可以被垃圾回收器回收的映射表 |
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| IdentityHashMap | 一种用 == 而不是用 equals 比较键值的 |
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## JDK 特性
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