实现LRU缓存机制以解决LeeCode146问题
实现了一个基于哈希表和双向链表的LRU(最近最少使用)缓存机制。该机制通过在双向链表的尾部添加最近使用的元素,并从头部移除最近最少使用的元素,以维护一个固定大小的缓存。当缓存满时,通过移除头部元素来腾出空间。此实现支持get和put操作,符合LRU缓存策略的要求。
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@ -9,8 +9,7 @@ import java.util.HashMap;
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public class LeeCode146 {
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@Test
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public void test()
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{
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public void test() {
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LRUCache lruCache = new LRUCache(2);
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lruCache.put(1, 1);
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lruCache.put(2, 2);
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@ -39,7 +38,7 @@ public class LeeCode146 {
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this.after = after;
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}
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public EntryNode(Integer key ,Integer object) {
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public EntryNode(Integer key, Integer object) {
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this.key = key;
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this.object = object;
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}
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@ -48,7 +47,7 @@ public class LeeCode146 {
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}
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}
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HashMap<Integer,EntryNode> caches;
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HashMap<Integer, EntryNode> caches;
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EntryNode head;
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EntryNode tail;
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Integer size = null;
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@ -90,7 +89,7 @@ public class LeeCode146 {
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return;
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}
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EntryNode v = new EntryNode(key,value);
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EntryNode v = new EntryNode(key, value);
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caches.put(key, v);
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addNode(v);
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if (caches.size() > size) {
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@ -103,6 +102,7 @@ public class LeeCode146 {
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/**
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* 删除某个节点
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*
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* @param entryNode
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*/
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public void deleteNode(EntryNode entryNode) {
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@ -112,6 +112,7 @@ public class LeeCode146 {
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/**
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* 在尾部增加某个节点
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*
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* @param node
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*/
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public void addNode(EntryNode node) {
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