qq_41459433的博客

java.lang.ExceptionInInitializerErrorCaused by:Repeated column in mapping for entity:(should be mapped with insert=“false” update=“false”)这是有关外键的问题，所以首先找到两张关系表的外键外键属于关系型数据库中的内容，在Java实体中不用定义其属性，所以...

今天在写插入排序时，始终报下标越界的错误，检查了几遍，发现并运算的顺序写错了public static void straightInsertSort(int[] arr){ int i,j,temp; for(i=1;i<arr.length;i++){ if(arr[i]<arr[i-1]){ temp = arr[i]; for (j=i-1; *...

public class Client { public static void main(String[] args) { final Product product = new Product(); IProduct proxyProduct = (IProduct)Proxy.newProxyInstance(product.getClass().g...