Debono Flexcom (I) Interview Questions and Answers

Use stream API to filter employees by salary and find average of numbers in a list.

• Filter employees with salary > 50000 and sort in descending order using stream API

• Calculate average of numbers in a list using stream API

Use @ComponentScan annotation with excludeFilters to exclude class configuration in Spring

• Use @ComponentScan annotation with excludeFilters parameter to exclude specific classes from component scanning

• Specify the classes to be excluded using TypeFilter implementations like AnnotationTypeFilter or AssignableTypeFilter

• Example: @ComponentScan(basePackages = {"com.example"}, excludeFilters = @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, classes = {ExcludedClass.class})...read more

Convert time string by adding 10 hours and display in 12-hour format

• Split the input string into hours and minutes

• Convert the hours to 24-hour format and add 10 hours

• Handle the case where the result goes past 12 hours

• Convert the result back to 12-hour format and display

In Kafka, a broker is a server that stores and manages the message data, a message is a unit of data sent through Kafka, and a correlation id is used to link related messages.

• A broker in Kafka is a server that stores and manages the message data.

• A message in Kafka is a unit of data sent through Kafka from a producer to a consumer.

• A correlation id in Kafka is used to link related messages together, allowing for tracking and processing of related messages.

Use a hashmap to store the frequency of each character and then iterate through the string to find the first non-repeating character.

• Create a hashmap to store the frequency of each character in the string.

• Iterate through the string and update the frequency in the hashmap.

• Iterate through the string again and return the first character with frequency 1.

Use assertNotNull() method from Junit to check if an object is null.

• Use assertNotNull() method from Junit library

• Pass the object as a parameter to assertNotNull() method

• If the object is null, the test will fail

API gateway is responsible for managing, securing, and optimizing API traffic between clients and services.

• Acts as a single entry point for all API requests

• Handles authentication and authorization

• Provides rate limiting and throttling

• Logs and monitors API traffic

• Transforms requests and responses

• Caches responses for improved performance