java写文件性能比较

import java.io.File;import java.io.FileOutputStream;import java.io.*;public class FileTest {public FileTest() {}public static void main(String[] args) {FileOutputStream out = null;FileOutputStream outSTr = null;BufferedOutputStream Buff = null;FileWriter fw = null;int count = 1000;//写文件行数   try {out = new FileOutputStream(new File("C:/add.txt"));long begin = System.currentTimeMillis();for (int i = 0; i < count; i++) {out.write("测试java 文件操作\r\n".getBytes());}out.close();long end = System.currentTimeMillis();System.out.println("FileOutputStream执行耗时:" + (end - begin) + " 豪秒");outSTr = new FileOutputStream(new File("C:/add0.txt"));Buff = new BufferedOutputStream(outSTr);long begin0 = System.currentTimeMillis();for (int i = 0; i < count; i++) {Buff.write("测试java 文件操作\r\n".getBytes());}Buff.flush();Buff.close();long end0 = System.currentTimeMillis();System.out.println("BufferedOutputStream执行耗时:" + (end0 - begin0)+ " 豪秒");fw = new FileWriter("C:/add2.txt");long begin3 = System.currentTimeMillis();for (int i = 0; i < count; i++) {fw.write("测试java 文件操作\r\n");}fw.close();long end3 = System.currentTimeMillis();System.out.println("FileWriter执行耗时:" + (end3 - begin3) + " 豪秒");} catch (Exception e) {e.printStackTrace();} finally {try {fw.close();Buff.close();outSTr.close();out.close();} catch (Exception e) {e.printStackTrace();}}}}

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