TechniFul

Recently I connected  an external hard-disk   to my new MacBook and observed that it was not properly detected on one of the USB ports. But I can see that it is powering my HDD. I tried switching to other port and it worked. I simply ignored it by thinking that my HDD cable might be loose. Now I bought a new USB drive and to get it detected, I have to insert and detach it multiple times. And as usual, I suspected the new USB drive, as my Mac is brand new. And planned to replace my USB drive. Now my HDD came back to   my mind. And also my earlier laptop, in which few KEYS went unresponsive due to accumulated charges. By little researching I found that I'm not alone. The solution that worked for me was "Resetting SMC" Here is the procedure I followed: Shut down the Mac and connect the power cable Hold down Shift+Control+Option+Power concurrently for a few seconds. When the light on the power adapter blinks or changes colors you’ll know SMC r

It's been almost two years I've been using HSQLDB in one of my client-critical application. When I was given the task of working on this application (which was already in production), main challenge was to reduce latency and also to make it flexible enough to accommodate any future use-cases. Without going into to much details, here's my use-case: Application receives data from multiple sources Parse data from each source and extract required data Aggregate this extracted data and find best candidate which satisfies certain rules One simplest solution is to join data from all sources by having a (for-)loop, one each for a source and apply rules inside inner-most loop. As number of data sources increases, so does the latency. HSQLDB came to my rescue. I used in-memory variant, as the data is non more required, once a candidate is found. Data extracted from each source is stored into DB (from here on, DB => in-memory HSQLDB), where

Sometime back, an update (believe me, an OTA update) blocked all network calls on my mobile. After struggling for a while, I came to know that IMEI of my phone was set to 0. Tried many solutions (resetting the phone, clearing cache, even installing fresh OS), but none came to my rescue. Thanks to a guy (sorry for not crediting), who uploaded instructions in Russian language, and with the help of Google Translate, my phone is up and running again. Note: Before proceeding any further, keep in mind that you need IMEI of your phone (check on back panel) Download related files from here . Here is the procedure that I've followed: Install the LG driver LG Install QPST Copy the entire folder EFS Professional to C drive Unpack the archive Nexus5 the root of drive C. Using WUG Nexus toolkit: Make sure running stock Android 5.0.1 Rooted If necessary, you can reset the IMEI using backups zero IMEI from the archive. To do this, simply make a backup of your EFS in TWRP, t

Recently I came across this beautiful app, while searching for good email app for corporate account. This app not only helps you in managing your emails, but also divides your work life from normal life, which can be accessed like switching between launchers. From Play Store: Divide delivers the ultimate mobile productivity tool to get work done securely on your Android device. Check your work email, view your calendar, look up contacts and more, all in one encrypted workspace without worrying about your privacy or the threat of your company wiping your device. Divide syncs with Exchange ActiveSync, Google Apps, and Lotus Notes and offers a complete BYOD solution for individuals and IT. Link: Divide

Reading from a text file is common. But, reading from an excel(.xls) file is not. Recently, I got to do so. Little bit Google search and experimentation resulted in the following. I used HSSF from Apache-POI. import org.apache.poi.hssf.usermodel.HSSFSheet; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.Row; public void readFromXlsFile (String pathToFile, String sheetName){     try {         FileInputStream file = new FileInputStream(pathToFile);         HSSFWorkbook workbook = new HSSFWorkbook(file);         HSSFSheet sheet = workbook.getSheet(sheetName);         Iterator<Row> rowIterator = sheet.rowIterator();                     while (rowIterator.hasNext()) {             Row row = rowIterator.next();             if (row.getRowNum() == 0) {                 continue;// skip first row, as it contains column names             }             Iterator<Cell> cellIterator

You might have read my review on Mac OSX Yosemite , The Good, bad and ugly. Now it turned out to be UGLIEST. No more words. Here's the image. If you are on Yosemite, you might be familiar with it. Most of the times, you get stuck on boot logo. I've seen complaints regarding it saying that fellow members are ignorant of it and they deny such possibility, even though many are still facing it. Workarounds suggested by our online friends: Just reboot your mac as many times it takes to your desktop. Boot into safe mode, by holding SHIFT and then reboot. Comment your workaround below, mine is the first one. If you are still on Mavericks, be there till Apple provides a fix for this.