package io; import java.io.FileWriter; import java.io.IOException; public class MyLogger { private static FileWriter out; static { try { out=new FileWriter("/tmp/log.txt"); } catch (IOException e) { } } public static void main(String[] args) throws Exception { for(int i=0; i<1000; i++) { MyLogger.trace(i+""); System.out.println(i); Thread.sleep(1000); } } public static void trace(String msg) { if (out !=null) { try { out.write(msg+"\n"); out.flush(); } catch (IOException e) { } } } }