Skip to main content

Posts

Showing posts with the label String constant pool

Before Starting MicroServices just walk through Orchestration !! Matters a lot

What is this Orchestration : Orchestration is the traditional way of handling interactions between different services in Service-Oriented Architecture (SOA). With orchestration process, there is typically one controller that acts as the “orchestrator” of the overall service interactions. This typically follows a request/response type pattern. For example, if three services needed to be called in a particular order, the orchestrator makes a call to each one, waiting for a response before calling the next. 

Difference between String ,StringBuffer & StringBuilder?

Run this simple java program and create scenerio of String object creation in your mind.You will see huge difference than expectation.                                I would recommend to first try on your own then follow the solution . As you execute the above line of codes in your Java Runtime Environment .As compiler read the lines .In  case of                                      String a= new String("Hello");        As it will allow compiler to create a new string object .It is always mandatory for  compiler to allocate a memory space in heap whenever new  keyword is used.So String class object created successfully in heap with reference variable a.And a very important point  need to be noted down that here  "new String("Hello');"   It will make a literal object in String  pool with value "Hello".So total number of object created equals two.so if you print value of a using System.out.println(a);  It will print