Java中的缓冲流详细解析

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;

public class Test4 {
	public static void main(String[] args) {
		File file = new File("C:/Users/73981/Desktop/test.txt");
		InputStream inputStream;
		try {
			inputStream = new FileInputStream(file);
			BufferedInputStream bufferedInputStream = new BufferedInputStream(inputStream);
//			int temp = 0;
//			while((temp = bufferedInputStream.read())!=-1) {
//				System.out.println(temp);
//			}
			byte[] bytes = new byte[1024];
			int length = bufferedInputStream.read(bytes,10,10);
			for(byte byt:bytes) {
				System.out.println(byt);
			}
			bufferedInputStream.close();
			inputStream.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;

public class Test {
	public static void main(String[] args) {
		InputStream inputStream = null;
		Reader reader = null;
		BufferedReader bufferedReader = null;
		try {
			inputStream = new FileInputStream("C:/Users/73981/Desktop/test.txt");
			reader = new InputStreamReader(inputStream);
//			Reader reader = new FileReader("/Users/southwind/Desktop/test.txt");
			bufferedReader = new BufferedReader(reader);
			String str = null;
			while((str = bufferedReader.readLine())!=null) {
				System.out.println(str);
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			try {
				bufferedReader.close();
				reader.close();
				inputStream.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		
	}
}

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.Reader;

public class Test {
	public static void main(String[] args) {
		File file = new File("C:/Users/73981/Desktop/test.txt");
		try {
			Reader reader = new FileReader(file);
			BufferedReader bufferedReader = new BufferedReader(reader);
//			String str = "";
//			while((str = bufferedReader.readLine())!=null) {
//				System.out.println(str);
//			}
//			int temp = 0;
//			while((temp = bufferedReader.read())!=-1) {
//				System.out.println(temp);
//			}
			char[] chars = new char[1024];
			int length = bufferedReader.read(chars,10,10);
			for(char cha:chars) {
				System.out.println(cha);
			}
			bufferedReader.close();
			reader.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}

import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

public class Test {
	public static void main(String[] args) {
		File file = new File("C:/Users/73981/Desktop/test.txt");
		try {
			OutputStream outputStream = new FileOutputStream(file);
			BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(outputStream);
			String str = "字节输入缓冲流，使用字节流作为基础管道的基础上，提供了一个缓冲区，在访问硬盘时缓冲区可以一次性存入多个字节，从缓冲区中将数据读入到字节流中，再到程序内存中。";
			byte[] bytes = str.getBytes();
			bufferedOutputStream.write(bytes,10,10);
			bufferedOutputStream.flush();
			bufferedOutputStream.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
}

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;

public class Test {
	public static void main(String[] args) {

		Writer writer = null;
		BufferedWriter bufferedWriter = null;
		try {
			writer = new FileWriter("C:/Users/73981/Desktop/test.txt");
			bufferedWriter = new BufferedWriter(writer);
			String str = "字节输入缓冲流，使用字节流作为基础管道的基础上，提供了一个缓冲区，在访问硬盘时缓冲区可以一次性存入多个字节，从缓冲区中将数据读入到字节流中，再到程序内存中。";
			bufferedWriter.write(str, 5, 15);
			bufferedWriter.flush();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			try {
				bufferedWriter.close();
				writer.close();
			} catch (IOException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}
}