Interview Questions and Answers

The put function in a hash map is used to insert a key-value pair into the map.

• Use the put() method to add a key-value pair to a hash map.

• Syntax: map.put(key, value);

• Example: map.put("key1", "value1");

I have learned multiple coding languages including Java, Python, and C++.

• Proficient in Java, Python, and C++

• Familiar with HTML, CSS, and JavaScript

• Experience with SQL and database management

• Knowledge of object-oriented programming principles

• Understanding of algorithms and data structures

Automate post method using code

• Use a testing framework like Selenium or Appium to automate the post method

• Identify the endpoint URL and parameters needed for the post request

• Write code to send a post request with the required parameters

• Validate the response received from the post request

Java program for array reverse, recursion, balanced parenthesis using stack, constructor usage, and defect life cycle in testing.

• Array reverse: Use a for loop to swap elements from start to end.

• Recursion: A method that calls itself to solve a problem.

• Balanced parenthesis using stack: Push opening brackets onto stack and pop when closing brackets are encountered.

• Constructor in Java: Used to initialize objects of a class.

• Smoke testing defect life cycle: Identifying defects in i...read more

Selenium locators include ID, Name, Class Name, Tag Name, Link Text, Partial Link Text, CSS Selector, and XPath.

• Types of Selenium locators include ID, Name, Class Name, Tag Name, Link Text, Partial Link Text, CSS Selector, and XPath.

• XPath is used when other locators are not suitable or when locating elements based on complex conditions.

• Types of XPath include Absolute XPath and Relative XPath.

• Example: driver.findElement(By.xpath("//input[@id='username']"));

REST stands for Representational State Transfer, a software architectural style that defines a set of constraints to be used for creating web services.

• REST is based on the idea of treating server objects as resources that can be created, read, updated, and deleted using standard HTTP methods.

• It uses a stateless communication protocol, meaning each request from a client to a server must contain all the information necessary to understand the request.

• RESTful APIs typically use ...read more

The annual income varies depending on factors such as experience, location, and job role.

• Annual income for Java Developers can range from $60,000 to $150,000 or more.

• Factors influencing income include years of experience, skill level, and the company's location and size.

• Senior Java Developers with extensive experience and expertise may earn higher salaries.

• Income can also be influenced by additional benefits such as bonuses, stock options, and healthcare.

• It is important to re...read more

Programs on string array involve manipulating an array of strings using various operations.

• Use loops to iterate through the array of strings

• Implement functions to perform operations like sorting, searching, or modifying strings

• Examples: sorting strings in alphabetical order, searching for a specific string, concatenating strings