(5)Arrays of Objects (6)Command-Line Arguments 2.基本概念和知识点 (1)An array of size N is indexed from 0 to N-1. (2)In Java,an array is an object that must be instantiated. (3)Bounds checking ensures that an index used to refer to an array element is in range (4)An initializer list can be used to instantiate an array object instead of using the new operator. (5)An entire array can be passed as a parameter,making the formal parameter an alias of the original. (6)Instantiating an array of objects reserves room to store references only.The objects that are stored in each element must be instantiated separately. (7)Command-line arguments are stored in an array of String objects and are passed to the main method. 3.问题与应用（能力要求） (1)掌握数组定义和使用： (②)掌握数据作为参数传递的具体方式： (3)掌握命令行参数传递方法 第二节Variable Length Parameter and Two--Dimensional Arrays 1.主要内容 (1)Variable Length Parameter (2)Two-Dimensional Arrays (3)Multidimensional Arrays 2.基本概念和知识点 (1)a twodimensional array has values in two dimensions,which are often thought of as the rows and columns of a table. (2)An array can have one,two,three,or even more dimensions. Any array with more than one dimension is called a multidimensional array. 3.问题与应用（能力要求） (1)掌握变长参数列表的使用： (2)理解二维数组的定义和使用。 融入点：从习近平主席不断扩大我国的“朋友圈”的思想中阐述不同维度21 (5) Arrays of Objects (6) Command-Line Arguments 2．基本概念和知识点 (1) An array of size N is indexed from 0 to N−1. (2) In Java, an array is an object that must be instantiated. (3) Bounds checking ensures that an index used to refer to an array element is in range. (4) An initializer list can be used to instantiate an array object instead of using the new operator. (5) An entire array can be passed as a parameter, making the formal parameter an alias of the original. (6) Instantiating an array of objects reserves room to store references only.The objects that are stored in each element must be instantiated separately. (7) Command-line arguments are stored in an array of String objects and are passed to the main method. 3．问题与应用（能力要求） (1) 掌握数组定义和使用； (2) 掌握数据作为参数传递的具体方式； (3) 掌握命令行参数传递方法 第二节 Variable Length Parameter and Two-Dimensional Arrays 1．主要内容 (1) Variable Length Parameter (2) Two-Dimensional Arrays (3) Multidimensional Arrays 2．基本概念和知识点 (1) a twodimensional array has values in two dimensions, which are often thought of as the rows and columns of a table. (2) An array can have one, two, three, or even more dimensions. Any array with more than one dimension is called a multidimensional array . 3．问题与应用（能力要求） (1) 掌握变长参数列表的使用； (2) 理解二维数组的定义和使用。 融入点：从习近平主席不断扩大我国的“朋友圈”的思想中阐述不同维度