Medidigest System Interview Questions and Answers

My framework is a data-driven automation framework built using Selenium WebDriver and TestNG.

• Built using Selenium WebDriver for web automation

• Utilizes TestNG for test case management and execution

• Follows data-driven approach for test data separation

• Includes reporting features for test result analysis

Find the longest common prefix among an array of strings

• Iterate through the characters of the first word and compare with the corresponding characters of other words

• Stop when a mismatch is found or when reaching the end of any word

• Return the prefix found so far

Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.

• Abstract class can have constructors, fields, and methods, while interface cannot have any implementation.

• A class can extend only one abstract class but can implement multiple interfaces.

• Abstract classes are used to define a common behavior for subclasses, while interfaces are used to define a contract for classes to implement.

• Example: Abstract class - Animal with ab...read more

Sort arraylist of custom objects using Comparator interface.

• Implement Comparator interface in custom object class.

• Override compare method to define custom sorting logic.

• Use Collections.sort() method to sort the arraylist.

Static keyword in Java is used to create class-level variables and methods that can be accessed without creating an instance of the class.

• Static variables are shared among all instances of a class.

• Static methods can be called without creating an object of the class.

• Static blocks are used to initialize static variables.

• Static keyword can also be used to create static nested classes.

Final keyword in Java is used to restrict the user from changing the value of a variable, making it a constant.

• Final keyword can be applied to variables, methods, and classes.

• Final variables must be initialized and cannot be reassigned.

• Final methods cannot be overridden in subclasses.

• Final classes cannot be subclassed.