java输入输出27：键盘录入两种方式

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1、BufferedReader的readLine方法
2、Scanner

代码演示如下：

package zifu;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;
public class Demo17_SystemIn {
     public static void main(String[] args) throws IOException {
          /*BufferedReader br = new BufferedReader(new InputStreamReader(System.in));//InputStreamReader转换流
          String line = br.readLine();
          System.out.println(line);
          br.close();*/
          
          Scanner sc = new Scanner(System.in);
          String line = sc.nextLine();
          System.out.println(line);
          sc.close();
     }
}