java接收键盘输入的几种方法

import java.io.*;

 

1.用BufferedReader类和inputStreamReader类。

BufferedRead br = new BufferedRead(inputStreamReader(System.in));

String str= br.readLine();

 

2.用Scanner类

Scanner scan= new Scanner(System.in);
String str = scan.next();
int  i=scan.nextInt();
float f=scan.nextFloat();

3.接收单个字符

char c = (char)System.in.read();