黑马程序员JAVA高级视频_IO输入与输出19天10(读取转换流)

package string.itcastio;

import java.io.*;

/*
 * 字符流
 *      1，FileReader
 *      2，FileWriter
 *      3，BufferedReader
 *      4，BufferedWriter
 * 字节流
 *      1，InputStream
 *      2，OutputStream
 *      3，BufferedInputStream
 *      4，BufferedOutputStream
 *      
 *      InputStreamReader:
 *      是字节流通向字符流的桥梁
 */
public class InputStreamReaderDemo1 {
    public static void main(String[] args) throws IOException {
        //获取键盘输入对象
        InputStream is = System.in;
        //将字节流转换为字符流对象，使用转换流InputStreamReader
        InputStreamReader isr = new InputStreamReader(is);
        //为了提高效率，使用字符缓冲区技术高效操作，使用BufferedReader
        BufferedReader br = new BufferedReader(isr);
        //键盘录入最常见写法
        //BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        String line = null;
        while ((line = br.readLine()) != null) {
            if ("over".equals(line)) {
                break;
            }
            System.out.println(line);
        }
    }

}