eClinicalWorks Softwaretest Engineer Interview Questions, Process, and Tips

Program to reverse a string using array of characters

• Create an array of characters from the input string

• Iterate through the array in reverse order and append each character to a new string

• Return the reversed string

To extract data from an Excel sheet, you can use libraries like Apache POI or Openpyxl in Java or Python respectively.

• Use a library like Apache POI or Openpyxl to read Excel files

• Identify the sheet and cell range from which you want to extract data

• Iterate through the rows and columns to extract the desired data

• Store the extracted data in variables or data structures for further processing

Encapsulation, Inheritance, Polymorphism, and Abstraction are the OOP concepts used in my framework.

• Encapsulation: Used to hide the internal details of an object and provide a public interface.

• Inheritance: Used to create a new class from an existing class, inheriting its properties and methods.

• Polymorphism: Used to perform a single action in different ways based on the object's type.

• Abstraction: Used to provide a simpl...read more

Regression testing is the process of retesting a software application to ensure that new code changes have not adversely affected existing functionality.

• Performed after code changes to ensure that existing features still work correctly

• Helps in identifying and fixing any defects introduced by new code changes

• Automated tools like Selenium can be used for regression testing

• Examples: Testing a login feature after adding a

ArrayList is a resizable array implementation while LinkedList is a doubly linked list implementation.

• ArrayList uses dynamic arrays to store elements, allowing fast random access but slower insertion and deletion.

• LinkedList uses nodes with pointers to the next and previous elements, allowing fast insertion and deletion but slower random access.

• Example: ArrayList - List<String> names = new ArrayList<>(); Lin...read more

The static keyword in programming is used to declare variables, methods, or classes that belong to the class itself rather than instances of the class.

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

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

• Static classes cannot be instantiated and are used for grouping related methods and variables.

• Example: public static int count = 0; // static