java例程练习（缓冲流)

import java.io.*;

public class Test {
	public static void main(String[] args) {
		
		try {
			FileInputStream fis = new FileInputStream("C:/java/Test.java");
			BufferedInputStream bis = new BufferedInputStream(fis);
			
			int c = 0;
			System.out.println(bis.read());
			System.out.println(bis.read());
			
			bis.mark(100);
			for(int i = 0; i <= 10 && (c = bis.read()) != -1; i++) {
				System.out.print(c+ " ");
			}
			
			System.out.println();
			
			bis.reset();
			for(int i = 0; i <= 10 &&(c = bis.read()) != -1; i++) {
				System.out.print(c + " ");
			}
			bis.close();
		} catch (FileNotFoundException e) {
			System.out.println("文件不存在");
		} catch (IOException e) {
			System.out.println("读取异常");
		}
	}
}

import java.io.*;

public class TTest {
	public static void main(String[] args) {
		try {
			BufferedWriter bw = 
				new BufferedWriter(new FileWriter("C:/java/Test_Bak.txt"));
			
			BufferedReader br = 
				new BufferedReader(new FileReader("C:/java/Test.java"));
			
			String s = null;
			for(int i = 0; i <= 100; i++) {
				s = String.valueOf(Math.random());
				bw.write(s);
				bw.newLine();
			}
			bw.flush();
			
			while((s = br.readLine()) != null) {
				System.out.println(s);
			}
			bw.close();
			br.close();
			
		} catch (FileNotFoundException e) {
			System.out.println("文件不存在");
		} catch (IOException e) {
			System.out.println("读取异常");
		}
		
	}
}