Java 学习笔记（2）

数组

声明数组的形式如下

//声明一个定长的数组
int[] a = new int[100];

int[] a;
a = new int[100];

int a[] = new int[100];

int a[];
a = new int[100];

//声明时进行初始化
int[] a = new int[] {5, 15, 20};

int[] a;
a = new int[] {5, 15, 20};

int[] a = {5, 15, 20};

int a[] = new int[] {5, 15, 20};

int a[];
a = new int[] {5, 15, 20};

int a[] = {5, 15, 20};

数组声明时写成int a[]和int[] a均可