bufferedstreamdemo.java

来自「JAVA编程思想源代码 值得一下 很难找的」· Java 代码 · 共 55 行

package chapter10;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class BufferedStreamDemo {

	public static void main(String[] args) {

		try {
			byte[] data = new byte[1];

			File srcFile = new File("chapter10\\DirDemo.java");
			File desFile = new File("chapter10\\DirDemo.txt");

			BufferedInputStream bufferedInputStream = new BufferedInputStream(
					new FileInputStream(srcFile));
			BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(
					new FileOutputStream(desFile));

			System.out.println("源文件长度为 : " + srcFile.length());

			while (bufferedInputStream.read(data) != -1) {
				bufferedOutputStream.write(data);
			}

			bufferedOutputStream.flush();

			System.out.println("chapter10\\DirDemo.txt is : ");

			bufferedInputStream = new BufferedInputStream(new FileInputStream(
					new File("chapter10\\DirDemo.txt")));
			while (bufferedInputStream.read(data) != -1) {
				String str = new String(data);
				System.out.print(str);
			}

			bufferedInputStream.close();
			bufferedOutputStream.close();

		} catch (ArrayIndexOutOfBoundsException e) {
			System.out.println("using: java useFileStream src des");

			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}