A computer science portal
Ans:- This is very frequently asked by the interviewer to check whether you are aware about the JavaScriptExecutor interface or not. Using javaScriptExecutor we can enter the input data in a text box. The code is mentioned below:- Code:- Explanation of the source code (Here source code snip added for better understanding):- JavaScriptExecutor is an…
Streams is introduced in java8 version. It basically helps to write a concise piece of code and it’s functional style of code writing. For the complete piece of code please visit the below mentioned link. The piece of code for stream iteration is mentioned below :- In the above case the “forEach” is a terminal…
Iterator is a method which returns an iterator over elements. It is defined inside the “Iterable” interface of java collection framework. The source code of this interface can be found in the below mentioned link. Let’s create on collection of hotels as mentioned in the below mentioned code:- The source code of the “Hotel” class…
Smoke Testing:- It’s done at the early phase of software development life cycle to ensure that core functionalities are working fine. The main purpose to identify the blocker or any major issues at the very early stages to save the efforts and time of the delivery life cycle. Sanity Testing:- It’s performed when a new…
So for that at first we have to set the system property “webdriver.chrome.driver” and need to provide the path of the executable file of the chrome driver. The code block is mentioned below:- Now we can set the options of the chrome driver. This step is optional. Here we can set the execution mode of…
Many times we have to handle the suggestions in the search box dynamically. As shown below for the google search page. When typed “selenium” word, it’s showing so many suggestions:- Now if we want to select only “selenium interview questions” then how to do that? As these options appears dynamically, so by using fixed locator…
Convert Binary Number in a Linked List to Integer Given head which is a reference node to a singly-linked list. The value of each node in the linked list is either 0 or 1. The linked list holds the binary representation of a number. Return the decimal value of the number in the linked list. The problem is…
Concatenation of Array Given an integer array nums of length n, you want to create an array ans of length 2n where ans[i] == nums[i] and ans[i + n] == nums[i] for 0 <= i < n (0-indexed). Specifically, ans is the concatenation of two nums arrays. Return the array ans. The problem is taken…
Count Number of Pairs With Absolute Difference K Given an integer array nums and an integer k, return the number of pairs (i, j) where i < j such that |nums[i] – nums[j]| == k. The value of |x| is defined as: x if x >= 0. -x if x < 0. This above problem…
This is a very common interview questions asked by many interviewer in SDET and SET interviews. At the very first, clear with the interviewer about the characters that the given string can hold. Here we are assuming that the string can contain ASCII characters with value from 1 to 128. Aproach:- So, at the very…