# Java

- [Java 基础](/java/java-42/java-ji-chu.md)
- [为什么 String hashCode 方法选择数字31作为乘子](/java/java-42/java-ji-chu/wei-shi-mo-string-hashcode-fang-fa-xuan-ze-shu-zi-31-zuo-wei-cheng-zi.md)