Software architect should select proper architecture to develop an software system. For external stakeholders and customers, it is only functional requirement. There are many factors helps to decide the architecture for an application. Let us explore the factors decide the software architecture, Architectural drivers. Architecture requirements are not only functional requirements Architectural drivers are formally
Static program analysis(Static Code Analysis) is the analysis of computer software that is performed without actually executing programs — Wikipedia. This blog, we would discuss on Static Code Analysis. Static code analysis refers to the technique of approximating the runtime behavior of a program. In other words, it is the process of predicting the output
In last discussion, we discussed on Exceptions and handling the exception. Now we would discuss one level up in the exception hierarchy Throwable and Error. Throwable class provides basic implementation for handling serious issue or recoverable issue in the code. All the Throwable and child of Throwable class objects can be thrown and handled
In software industry, 80% of the effort spend on debugging and resolving the issues in the application. So identifying the issues, finding the problematic code block and handling the issues are important. It would greatly reduce the programmer’s effort to debug and fix the issue. Java provides elegant way to identify and handle the issue
In previous blog, we discussed on String and string constant pool. It highlighted the issue in String manipulation and how it fill the pool memory. We not recommended to use String for temporary string statement formation, logger statement, updatable string values, large file I/O stream of input processing. We can process these operation using String
Manipulation of String (Sequence of characters) is most important aspect of programming language. Name, id, address, role and username all manipulated as String in programming world. Java is no different from other language while using the String. In Java, String is sequence of characters and handled to make efficient use of memory. Strings are managed
Before start discussion on inner class, let us discuss simple analogy. Boat and Fin(Flipper). Fin exists only for boat an to help boat to move in river. Fin would not be useful if there is no boat. But Fin is not a boat or not an part of boat. But it shares special relationship “one
Java coding practices recommended that maximum 80 characters in single line of the code. It is best for readability and understand the code. If our class require static members in more than 20 lines of our code and all lines are more than 80 characters in length, static import would help us to reduce the
Recently I had chance to meet my college junior, he said he started learning Java. I appreciated him for learning new programming skill. He is from C programming background, he said it is easy to learn java and he said java looks same like “C programming”. I was shocked. How he claims “Java programming same
Java methods accept parameters, execute business logic and return results. We can pass multiple argument to the methods and it return only one value from the methods. Some real time scenario, we may require to get more than one return values from single method. To get two return value from an method, one return value