package 流;import java.io.BufferedReader;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException;import java.io.InputStream;public class 读 {        public static void main(String[] args) {        BufferedReaderDemo();    }            public static void InputStreamDemo(){        try {            InputStream inputStream=new FileInputStream("d://test.txt");            int ch=0;            try {                while((ch=inputStream.read())!=-1)                {                    System.out.print((char)ch);                }            } catch (IOException e) {                // TODO Auto-generated catch block                e.printStackTrace();            }        } catch (FileNotFoundException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }        public static void FileReaderDemo(){                FileReader fileReader;        try {            fileReader = new FileReader("d://test.txt");            int ch=0;            try {                while((ch=fileReader.read())!=-1)                {                    System.out.print((char)ch);                }            } catch (IOException e) {                // TODO Auto-generated catch block                e.printStackTrace();            }        } catch (FileNotFoundException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }        public static void BufferedReaderDemo(){                try {            BufferedReader bufferedReader=new BufferedReader(new FileReader("d://test.txt"));            String data;            try {                data = bufferedReader.readLine();                while(data!=null)                {                    System.out.println(data);                    data=bufferedReader.readLine();                }            } catch (IOException e) {                // TODO Auto-generated catch block                e.printStackTrace();            }        } catch (FileNotFoundException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }}