1．理解数组在Java中是复合数据类型

2．掌握一维、二维数组在Java中的实现方法(创建、实例化、初始化)

3．掌握利用for循环对数组进行遍历的方法

4．掌握java.util.Arrays类当中与数组操作相关的方法

-1. Understanding Arrays in Java, is a complex data type 2. Master the one-dimensional, two-dimensional array in Java, the implementation method (create, instantiate, initialize) 3. Master the use of for loop traversing the array 4. Java.util.Arrays class to master them with an array of methods related to the operation