Eucloid Data Solutions Interview Questions and Answers

Java regex is a sequence of characters that defines a search pattern for matching strings in Java.

• Java regex is used for pattern matching and string manipulation in Java.

• It allows you to search, replace, and validate strings based on specific patterns.

• Regex patterns are defined using a combination of characters and special symbols.

• Some common regex methods in Java include matches(), find(), replaceAll(), etc.

• For example, to check if a string contains only digits, you can use ...read more

The answer to the question is to perform a join operation on the table to retrieve the manager name with respective employee name.

• Use a SQL query to join the table on the manager ID

• Select the manager name and employee name from the joined table

• Display the manager name with respective employee name

Factory pattern creates objects without specifying the class type, while abstract factory pattern creates families of related objects without specifying their concrete classes.

• Factory pattern creates objects through a common interface, without exposing the instantiation logic to the client.

• Abstract factory pattern provides an interface to create families of related or dependent objects without specifying their concrete classes.

• Factory pattern is a single method call to create...read more

Dependency injection in C# is a design pattern where dependencies are injected into a class rather than the class creating them itself.

• Dependency injection helps in achieving loose coupling between classes.

• It makes the code more testable and maintainable.

• There are different ways to implement dependency injection in C#, such as constructor injection, property injection, and method injection.

I have experience working with Nginx server and have exposure to its various features and functionalities.

• I have configured Nginx as a reverse proxy server to improve website performance.

• I have used Nginx to load balance traffic across multiple servers.

• I have implemented SSL/TLS encryption using Nginx to secure web traffic.

• I have utilized Nginx's caching capabilities to improve website speed and reduce server load.

• I have experience with Nginx's configuration files and have ma...read more

Exception handling in Java is a mechanism to handle runtime errors and prevent program crashes.

• Use try-catch blocks to handle exceptions

• Throw exceptions using the 'throw' keyword

• Use finally block to execute code regardless of exception

• Handle specific exceptions using multiple catch blocks

• Create custom exceptions by extending the Exception class

Soft assertions in TestNG allow multiple assertions to be executed in a test case without stopping the execution on the first failure.

• Soft assertions are implemented using the SoftAssert class in TestNG.

• Soft assertions are useful when you want to continue executing the test case even after encountering failures.

• All assertions are collected during the test execution and reported at the end of the test case.

• Example: SoftAssert softAssert = new SoftAssert(); softAssert.assertEqu...read more