Categories Android 2 categories , 4 posts Tool 3 posts 设计模式 1 post Java 1 category , 1 post JVM 1 post Life 1 post 开发工具 1 category , 1 post Git 1 post 计算机知识 1 category , 1 post 网络安全 1 post 读书笔记 1 category , 6 posts Effective Java 6 posts