【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);
    }
}