SDLC - Software Development Life Cycle is a process used by the software industry to design, develop and test high quality softwares. 1- Requirement Analysis 2- Defining Requirements To clearly define and document the product requirements SRS (Software Requirement Specification) document which consists of all the product requirements to be designed and developed during the project life cycle. 3- Designing the Product Architecture One design approach for the product architecture is proposed and documented in a DDS - Design Document Specification . DDS is reviewed by all the important stakeholders and based on various parameters as risk assessment, product robustness, design modularity, budget and time constraints, the best design approach is selected for the product. DDS defines all the architectural modules of the product along with its communication and data flow representation with the external and third party modules. 4- Developing the ...
There are several ways to simulate optional parameters in Java: Method overloading. void foo ( String a , Integer b ) { //... } void foo ( String a ) { foo ( a , 0 ); // here, 0 is a default value for b } foo ( "a" , 2 ); foo ( "a" ); One of the limitations of this approach is that it doesn't work if you have two optional parameters of the same type and any of them can be omitted. Varargs. a) All optional parameters are of the same type: void foo ( String a , Integer ... b ) { Integer b1 = b . length > 0 ? b [ 0 ] : 0 ; Integer b2 = b . length > 1 ? b [ 1 ] : 0 ; //... } foo ( "a" ); foo ( "a" , 1 , 2 ); b) Types of optional parameters may be different: void foo ( String a , Object ... b ) { Integer b1 = 0 ; String b2 = "" ; if ( b . length > 0 ) { if (!( b [ 0 ] instanceof Integer )) { ...
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