1.提高数据库查询效率的方法:
传送门:https://www.cnblogs.com/exe19/p/5786806.html
2.常见内存泄漏的原因,以及解决方法:
传送门:https://www.jianshu.com/p/90caf813682d
3.java内存的分配:
传送门:https://www.cnblogs.com/SaraMoring/p/5687466.html
4.java中继承,组合,代理的区别:
传送门: https://blog.csdn.net/harrytsz/article/details/61925951
5.二叉树知识点总结:
传送门:https://baijiahao.baidu.com/s?id=1596161530120304405&wfr=spider&for=pc
6.UML
传送门:https://blog.csdn.net/soft_zzti/article/details/79811923
7.Junit
传送门:https://www.cnblogs.com/happyzm/p/6482886.html
8.Java常见面试问题总结
传送门:https://blog.csdn.net/linzhiqiang0316/article/details/80473906
9.Java键盘录入的三种方法:
传送门:https://blog.csdn.net/u012249177/article/details/49586383