Main reference: [1] http://winterbe.com/posts/2014/03/16/java-8-tutorial/ [2] https://plus.google.com/107771575694787223844/posts 1. Add default methods for Interfaces In java 8, Interface could have concrete methods using keyword 'default'. interfac…
Main reference [1] http://winterbe.com/posts/2014/07/31/java8-stream-tutorial-examples 1. How Streams Work A stream represents a sequence of elements and supports different kind of operations to perform computations upon those elements: List<String>…
The first day,when I read 'we need practice so we need a Javascript Interpreter.','Every browser has Javascript Interpreter.' we can find them in the SETTING or TOOLS-> Developement Tools/Web console or just right click the page INSPECT ELEMENT. so w…
I'm going to start to learn Javascript in this month. Someone told me you can't learn another language if you already have a native language. So we need to forget to learn better.Compare to remeber,it's really hard for me to forget.However I like cha…
Linux Essentials Certification Globbing ls ?.txt --- ? stands for one character while * means one or more characters ls [F]*.txt --- list file starting with F ls [F]*.txt --- list file starting with F ls f[igh] --- the first character is f, but the s…
References: [1] http://www.tldp.org/LDP/Bash-Beginners-Guide/html/ 1. Executing programs from a script When the program being executed is a shell script, bash will create a new bash process using a fork. This subshell reads the lines from the shell s…
