package com.alibaba.druid; import java.util.LinkedHashMap; import junit.framework.TestCase; public class TestLRU extends TestCase { public void test_lru() throws Exception { LinkedHashMap cache = new LinkedHashMap(100, 0.75f, true); cache.put(2, "22"); cache.put(3, "33"); System.out.println(cache); cache.put(2, "22"); System.out.println(cache); cache.get(3); System.out.println(cache); } }