Executing Linux command from Java
You know Linux commands are always fun. We always play on terminals. How about executing from our favorite language java? Then you need following class Now you can execute any … Continue reading
Check out Birds Puzzle on Google Play
I have got an android app named Birds Puzzle in the android market. It is a kid friendly image slide puzzle game for Android displaying a set of bird picture … Continue reading
How to decompile android apk to java source code?
I wrote another post with the same title here and it got a lot of comments and people wanted to know more, and some point some visitors was confused. so … Continue reading
How to enable usb debugging in ubuntu for nexus 7
get the terminal, type: sudo vi /etc/udev/rules.d/70-android.rules or sudo gedit /etc/udev/rules.d/70-android.rules and then add the following line: SUBSYSTEM==”usb”, ATTR{idVendor}==”18d1″, ATTR{idProduct}==”4e42″, MODE=”0666″
DNS Explained
DNS মানে হলো Domain Name System. এটি ইন্টারনেট এর সবচেয়ে গুরুত্বপূর্ণ জিনিস। এটি ছাড়া ইন্টারনেট যেকোন মুহূর্তে ধসে পরতে বাধ্য। ডিএনএস না থাকা মানে No Internet, No facebook, No Google. … Continue reading
Problems with unicode encoding in spring projects
I had a problem with the encoding of Unicode characters. I developed a simple web application with support for multiple languages, which is called internationalization or i18n. In this application, … Continue reading
A brief introduction of String in Java
What is string? String is traditionally a sequence of characters. In Java string is an object and it is widely used in Java. String class is defined in java.lang package … Continue reading
10 Things about Design
“Simplicity is the ultimate sophistication.” – da Vinci The best deliverable are prototypes. Sketching is the most effective design method. Creativity comes from everywhere. Design is writing. Interruption is the … Continue reading
Well-Grounded Java Developer
Reading Well-Grounded Java Developer by Benjamin J.Evans, Martijin Verburg. You must read this book if you are really a java fanatic. you can read the review of this book here: … Continue reading
State Diagram of Java Thread
Figure: Java thread state diagram Runnable: A thread becomes runnable when start() is called. It doesn’t mean that thread gets running immediately, rather it is pooled waiting for its turn … Continue reading
Chain of responsibility pattern
Pattern name: Chain of responsibility What it is: Avoid coupling the sender of request to its receiver by giving more than one object to a chance to handle request. Chain … Continue reading
CloudBess maven deployment Command
Deploy : deploy skipping test :
Think twice before diving into ocean, check JOEL Test score
As we are graduating this year, most of us spend a significant amount of time looking for a job and certainly I do. There are always jobs out there but … Continue reading
For those who are disappointed for the lack of lambda expressions and some other functional features in Java
Today I just found a cool java library which made me really happy. It’s called op4j: Bending the Java spoon. It is a Java library aimed at improving quality, semantics, … Continue reading
How to encrypt password in Java
One of the most important security features used today are passwords. It is important for both you and all your users to have secured and unguessable passwords. Passwords are always … Continue reading
Java Tutorial for absolute beginners
Once I have started to write Java Tutorial for absolute beginners. This one is the first shoot. I wanted to make it visual as much as possible. So here … Continue reading
How to clean up unused imports in eclipse automatically
We sometime keep unused imports in our java source and eclipse shows them using a yellow flag which I hate most. So here’s the way to clean up unused imports. … Continue reading
Simple Caculator in Java got 10 thousends views
When I was learning java, I wrote a simple calculator in java using basic swing and posted in a forum. And today I just looked, it has got 10 … Continue reading
Fun with Static import
Static import is another interesting feature in java. We write, System.out.println() method thousands of time during java coding. if you are lazy like me and don’t like to write … Continue reading
find out the first non-repeated word in the file
Problem # 1: Suppose you have a plain text file. Write a simple java program to find out the first non-repeated word in the file. Note: this problem is given … Continue reading
বস্তুগত ধারণা : পাঠ -২
Offline Version: download বস্তুগত ধারণা : পাঠ -২ Source Code: download source code গত পর্বে বলেছিলাম যে পাঠ-২ তে সব কিছু আরো ডিটেইল-এ বলবো। সুতরাং আজকের পর্ব পাঠ-১ এক এ … Continue reading
Generic CRUD DAO layer
The last few days I read about generic in java. I knew a little bit, again, I wanted to find out a bit more. So I started to dig on … Continue reading
Mapping a boolean with hibernate
There is a concept called a soft delete. While working with different persistence framework, sometimes you may not want to completely delete an entity from the database. I was working … Continue reading
Inversion of Control and Dependency Injection: Part 2
এর আগের পোস্ট-এ ইনভার্সন অব কন্ট্রোল এবং ডিপেনডেন্সি ইনজেকশান এর ভেতরের কথা গুলো বলার চেষ্টা করেছি, এবার একটি উদাহরণ দেওয়া যাক। এই উদাহরণটির জন্যে আমি স্প্রিং ফ্রেমওয়ার্ক ব্যবহার করবো। আমি … Continue reading
Inversion of Control and Dependency Injection
এই বস্তুটা গত কয়েক বছরে বেশি আলোচিত জিনিস ছিল এবং এখনো আছে। একদম নতুন যারা তাদের এই জিনিসটা বুঝতে অনেক অসুবিধা হয়। কিন্তু জিনিসটা খুব বেশি কঠিন না। সহজ কথায় … Continue reading
বস্তুগত ধারণাঃ পাঠ-১
beআমি নিজেও ঠিক মতো বুঝি না এই বস্তু আসলে কি? আমার নিজের বুদ্ধিমত্তা অনেক কম বলে এখনো বুঝে উঠতে পারি নি, কিন্তু আমার ধারণা তোমরা যারা এই লেখাটি পড়ছো, তোমাদের … Continue reading
Drawback of MVC pattern I have noticed
I’m a big fan of MVC pattern. It’s definitely an excellent architectural pattern and it has done splendid job in last few years. But again, it has some drawback. The … Continue reading
What is java and Java virtual machine
You might have a lot of questions like what is java and what is java virtual machine especially if you are a beginner. My answer is very simple. Java is … Continue reading
Jenkov.com
- Java Exception Handling - New book published!Download this book for free from Amazon until and including march 1st! Exception handling is an aspect of Java development that has not received as much attention as it deserves. If you do not have exception handling under control, you risk that your application or data ends up in an unhealthy state, which can have serious consequences. That is why I wrote t […]
- HTML4 Compressed - Kindle book publishedIn this day and age it should be easy and cheap to learn HTML4, which everyone needs to learn in order to learn HTML5. Therefore I published this Kindle book which explains HTML4. The parts of HTML4 that is not removed in HTML5, that is.
- jQuery Compressed - UpdatedI have updated the jQuery Compressed book to be compatible with version 1.9.1 of jQuery.
- Displaying SVG in BrowsersThe SVG tutorial has been updated, showing how to include SVG in HTML pages using the img HTML element, or the SVG element.
- Maven Tutorial.This Maven tutorial explains the core concepts of Maven which are important to understand for new Maven users.
Code Explosion Blog
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