Vyom Labs Interview Questions, Process, and Tips

Java program to reverse a string

• Create a character array of the given string

• Iterate through the array from both ends and swap the characters

• Convert the array back to string

Abstraction is a concept of hiding implementation details while Interface is a blueprint of a class.

• Abstraction is achieved through abstract classes and methods

• Interface is a contract that defines the methods that a class must implement

• Abstraction focuses on what an object does while Interface focuses on how it does it

• Abstraction is used for code reusability and maintainability while Interface is used for achieving mul...read more

TestNG annotations are used to define the sequence of test methods execution.

• The @BeforeSuite annotation is executed before all tests in a suite.

• The @BeforeTest annotation is executed before all tests in a tag in the XML file.

• The @BeforeClass annotation is executed before the first test method in a class.

• The @BeforeMethod annotation is executed before each test method.

• The @Test annotation is used to mark a method as a...read more