Tech Mahindra Senior Software Developer Interview Questions and Answers

Program to sort employee salaries using Java 8

• Use Java 8 Stream API to sort the employee salaries

• Use Comparator to compare salaries

• Collect the sorted salaries into a list

Sort a list of employees by name using Java8 streams, explain seek vs wait, and compare protected vs default access modifiers.

• Use stream to sort employees by name: employees.stream().sorted(Comparator.comparing(Employee::getName)).collect(Collectors.toList())

• Seek is used to search for a particular element in a collection, while wait is used to pause the execution of a thread.

• Protected access modifier allows access within the same package and subclasses, while default access m...read more

The microservices design pattern used is the API Gateway pattern.

• API Gateway pattern is used to provide a single entry point for clients to access multiple microservices.

• It helps in routing requests, load balancing, authentication, and monitoring.

• Examples include Netflix Zuul and Amazon API Gateway.

To center a div using CSS, set the margin property to auto and specify a width for the div.

• Set margin property to auto

• Specify a width for the div

Arrow functions provide a concise syntax and lexical scoping compared to traditional functions.

• Arrow functions have implicit return statements

• They do not bind their own 'this' keyword

• They have a shorter syntax compared to traditional functions

• They are useful for callbacks and functional programming

• Example: const double = num => num * 2;

• Example: const sum = (a, b) => a + b;