【java】缓冲字符字节输入输出流：java.io.BufferedReader、java.io.BufferedWriter、java.io.BufferedInputStream、java.io.BufferedOutputStream

BufferedReader最重要，因为有个方法public String readLine()

 package System输入输出;

 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;

 public class Test {
     public static void main(String[] args) throws IOException {
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        System.out.print("请输入数据：");
        String str=br.readLine();
        System.out.println(str);
     }
 }

不限制长度且无乱码输入