Java tutorial
//package com.java2s; import android.util.Log; public class Main { static final String TAG = "BackgroundLBS"; public static void info(String fmt, Object... args) { Log.i(TAG, fmt(fmt, args)); //logger.info(fmt(fmt, args)); } public static String fmt(String fmt, Object... args) { try { return fmt == null ? null : args == null || args.length <= 0 ? fmt : String.format(fmt, args); } catch (Throwable e) { return fmt; } } }