Selenium WebDriver is a class or interface?

The best way to answer this question is to check the source code of Selenium WebDriver. The source code can be found here. In that source code it is clearly mentioned that, the Selenium WebDriver is an interface. The clear and concise source code of selenium WebDriver interface is mentioned below:- import org.openqa.selenium.logging.LoggingPreferences; import org.openqa.selenium.logging.Logs;…

What are WebElements in a web page?

It’s most important concept in the context of Selenium WebDriver. Selenium WebDriver interacts with the webpages with the help these WebElements. Now the question is what actually it is? Actually each webpage contains lots of elements like textboxes, dropdowns, buttons etc. These are called the webElements. Suppose take the example of the main search page…

lambda examples in java language with code

Lambda expression is used for the implementation of the functional interfaces. Functional interface is those interfaces which has only one abstract method. We can declare an interface as functional interface by using the annotation @FunctionalInterface. e.g. Comparator interface in java is a functional interface. Please visit the official site for more information:- lambdaexpressions Example 1:-…

leetcode solution of 1876 in java

Substrings of Size Three with Distinct Characters A string is good if there are no repeated characters. Given a string s​​​​​, return the number of good substrings of length three in s​​​​​​. Note that if there are multiple occurrences of the same substring, every occurrence should be counted. A substring is a contiguous sequence of…

How many numbers are smaller than the current number

How many numbers are smaller than the current number:- Given the array nums, for each nums[i] find out how many numbers in the array are smaller than it. That is, for each nums[i] you have to count the number of valid j’s such that j != i and nums[j] < nums[i]. Return the answer in an array….

leetcode solution of 1832 in java

Check if the Sentence Is Pangram:- A pangram is a sentence where every letter of the English alphabet appears at least once. Given a string sentence containing only lowercase English letters, returntrue if sentence is a pangram, or false otherwise. Solution:- Flow Diagram:- Code Block:- public static boolean checkIfPangram(String sentence) { Set s = new…

leetcode 1827 solution in java

Minimum Operations to Make the Array Increasing You are given an integer array nums (0-indexed). In one operation, you can choose an element of the array and increment it by 1. For example, if nums = [1,2,3], you can choose to increment nums[1] to make nums = [1,3,3]. Return the minimum number of operations needed…