Definition format of array

Definition ： Array is a storage mode used to store multiple data of the same type .

Format ：1, data type   [] Variable name

                           int[] arry

            2, data type   Variable name   []

                     int         arry  []

Java The array in is to be initialized , Can be used .（ Initialization is to allocate memory space for the array elements in the array , And assign values to each array element ）

dynamic initialization ： Initialization only specifies the array length , Initialization of array allocation by the system .

        Format ： data type [] Variable name = new data type [ The length of the array ]        

                for example ：int [] arry = new int[6];

          explain ： On the left ：int： Indicates that the element type in the array is int type

                                []： The description is an array

                                arr： This is the name of the array

                      On the right ：new： Request memory space for array

                                int： Indicates that the element type in the array is int type

                                []： The description is an array

                                6： The length of the array , In fact, it is the number of elements in the array