【java基础】键盘和文件输入输出的几个常见方法

键盘和文件输入输出的几个常见方法，持续更新中...

class KeyBoardIODemo {public static void main(String[] args) throws IOException {// 从键盘输入方法1：然后对br1对象进行操作。BufferedReader br1 = new BufferedReader(new InputStreamReader(System.in));// 从文件输入方法1：然后对br2对象进行操作。BufferedReader br2 = new BufferedReader(new InputStreamReader(new FileInputStream("小黄英语.txt")));// 从键盘输入方法2：然后对sc对象进行操作。Scanner sc = new Scanner(System.in);sc.nextLine();sc.next();// 向控制台输出方法1：然后对bw1对象进行操作。BufferedWriter bw1 = new BufferedWriter(new OutputStreamWriter(System.out));// 向文件输出方法1：然后对bw2对象进行操作。BufferedWriter bw2 = new BufferedWriter(new OutputStreamWriter(new FileOutputStream("keke.txt")));}}