摘要:
ThinkingHashMap 和HashSet其实类似于具有特定存储方式的二维数组。拿Integerhashset为例,我想要往hashset里面存储一个数字5,首先先通过某一种hash算法获得一个hash值比如获得的是3,那么先纵向遍历,查看二维数组的纵列第三个位置上是否为空,如果为空,就将该二... 阅读全文
摘要:
Problem & GoalUsually, like in java, any object will implement its to_string() function. So in Plsql, there is the same requirement.We want to impleme... 阅读全文