Here are more scenario-based interview questions that are tailored for experienced Spring Boot professionals. These questions delve into various advanced aspects of Spring Boot applications, ensuring you’re wel
The program won’t compile because JAXBException is a checked exception and foo() method should throw this exception to catch in the calling method. You will get an error message as “Unreachable catch block for JAXBException. This exception is never thrown from the try statement body”. ...
Crack your next tech interview with these top Java coding interview questions. Covers core Java, OOP, data structures, and real coding examples
The second scenario is when Class is not found. Exception in thread main java.lang.NoSuchMethodError: main: This exception comes when you are trying to run a class that doesn’t have main method. Exception in thread "main" java.lang.ArithmeticException: Whenever any exception is thrown from ...
Next, let’s have a look at an interesting scenario –referencing a method of an existing object instance. We’re going to use the variableSystem.out– an object of typePrintStreamwhich supports theprintmethod: Computerc1=newComputer(2015,"white");Computerc2=newComputer(2009,"black");Computer...
() in Java, either the class of obj has a foo() method or it doesn’t. In a language like JS that will depend on the actual object referenced by obj at runtime – a nightmare scenario for a static compiler. A compile-time approach to linking in this case just doesn’t work....
Using a LinkedList as the underlying data structure, the following is an example of how you may implement this scenario: This code utilizes a LinkedList as the underlying data structure and produces a Queue named bank queue. Customers are added to the end of the line using the add method, ...
any dead class or classloader object. Since our Java program is leaking, the JVM had no choice but to dynamically expand the Metaspace memory space. The program was able to run its 50K of iterations with no OOM event and loaded 50K+ Classes. Let’s move to our last testing scenario. ...
This scenario arises when a class assumes too many responsibilities or when one concern is spread over many classes rather than having its own class. Let's understand by an example: There is a Manager class which is dependent on SmartWorker class. Means until Manager has not smartWorker ...
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