Top 50 C# Interview Questions & Answers

During compilation, the compiler can use overload resolution to determine which method you need to invoke. It’s compiled with the .Net framework to generate Microsoft Intermediate Language , which is a set of instructions that can run on multiple environments. Assuming a tester has established the test environment and a test tool such as Selenium, the following steps outline how to automate the login feature.

Locator is a command that tells Selenium IDE which GUI elements it needs to operate on. The same Origin Policy prevents a malicious script on one page to access sensitive data on another webpage. Same Origin policy is a feature adopted for security purposes. According to this policy, a web browser allows scripts from one webpage to access the contents of another webpage provided both the pages have the same origin. The origin refers to a combination of the URL scheme, hostname, and port number. It is a Firefox/Chrome plug-in that was developed to speed up the creation of automation scripts.

Finally, you can also right-click on the page and select “Reload” from the context menu. All of these methods will cause the page to reload without losing any changes that have been made. Attributes are added to elements and can contain valuable information about that element. In order to access an attribute, you must use the at sign (@) followed by the attribute name. The assert command is used to check if the given condition is true or not.

Or we can say that a singleton is a class that permits only one instance of itself to be made and usually gives simple access to that instance. The term File Handling refers to the various operations like creating the file, reading from the file, writing to the file, appending the file, etc. There are two basic operations that are mostly used in file handling is reading and writing of the file. The file becomes stream when we open the file for writing and reading. A stream is a sequence of bytes that is used for communication. Two streams can be formed from the file one is the input stream which is used to read the file and another is the output stream is used to write in the file.

Whats The Difference Between An Interface And Abstract Class?

Automation testing requires the use of software tools or frameworks. Several variables contribute to the performance of automation testing. The tester examines the application’s design/rendering, functionality, and device-specific capabilities. Cross-browser testing is a subset of browser automation testing in which the tester ensures that the online application operates correctly across many browsers.

The process of converting an object into a stream of bytes is called Serialization. For an object to be serializable, it should implement ISerialize Interface. De-serialization is the reverse process of creating an object from a stream of bytes. Another major difference is that dispose() method is explicitly invoked by the user and finalize() method is invoked by the garbage collector, just before the object is destroyed.

How Can We Sort The Elements Of The Array In Descending Order?

No, Multiple catch blocks of similar type can’t be executed. Once the proper catch code executed, the control is transferred to the finally block, and then the code that follows the finally block gets executed. Singleton design pattern in C# is a common design pattern. In this pattern, a class has just one instance in the program that gives global access to it.

A lot of C# programmers shy away from (or don’t understand) function-valued parameters. While in this case the example is a little contrived, the purpose is to see if the applicant understands how to formulate a call to Calculate which matches the method’s definition. Since we don’t have access to the private radius field of the object, we tell the object itself to calculate the circumference, by passing it the calculation function inline.

Write code to calculate the circumference of the circle, without modifying the Circle class itself. One might think that, since a DateTime variable can never be null , the compiler would complain when a DateTime variable is compared to null. However, due to type coercion, the compiler does allow it, which can potentially lead to headfakes and pull-out-your-hair bugs. Given an array of ints, write a C# method to total all the values that are even numbers. Needs to review the security of your connection before proceeding. We have covered some frequently asked C# Interview Questions and Answers to help you for your Interview.

Inheritance is transitive in nature means If class X inherits from class Y and class Y inherits from class Z then class X inherits from both Y and Z. Inheritance is one of the three characteristics of OOPs. It allows you to create new classes that can re-use, modify and extend the behavior defined in other classes.

What Is The Test Automation Pyramid?

The inputs vary in length and include alphanumeric characters. This rapidly develops in unmaintainable code that the team is fearful of touching when needs change, leading to out-of-date tests that evaluate the system’s legacy behavior. A test that never fails is worse than having no tests since it provides a false sense of security that the feature is functioning correctly. You cannot guarantee which browsers/platforms/devices your users will use to access your program while developing web apps. Some people may be using Google Chrome on their Android smartphones, while others may be using Firefox on their Windows desktop computers or Safari on their Macbooks.

• Hope you liked the article Selenium Interview Questions, in case of any doubts you can ask your questions in the below section.
• This can be particularly important when testing complex applications where there is a greater risk of errors.
• The process of converting an object into a stream of bytes is called Serialization.
• C# is a programming language that’s object-oriented and type-safe.
• The verify command is used to check if the given condition is true or not.
• While this is not always the case, sophisticated solutions exist that enable testers to automate cross-browser testing.

We can launch different browsers in Selenium WebDriver using several methods. For example, we can use the setWebDriver() method to specify the path to the browser’s executable file. Alternatively, we can use the addCustomProfilePreference() method to add a custom profile preference for the browser.

How Many Test Cases Have You Automated In A Day?

C# is a general purpose programming language which encompasses various disciplines like object-oriented programming, static typing, component-oriented programming, strong typing, etc. C# is widely used in the ASP.NET framework for creating websites, web applications and games. There are vast opportunities for C# programming all over the world. A code that is written to aimed to get the services of the managed runtime environment execution like CLR in .NET Framework is known as Managed Code. It is always implemented by the managed runtime environment instead of directly executed by the operating system. It also provides memory allocation, type safety, etc to the code.

Selenium

Keep a running list of the anticipated outcomes for each test case. The number is determined by the test cases’ level of complexity. When the complexity of the QA Automation Engineer C# job test cases was minimal, I could automate between five and six test cases every day. Occasionally, for complex cases, I was able to automate just one test case.

The main difference between the “type” and “typeAndWait” command is that the “type” command does not wait for the page to reload, while the “typeAndWait” command does. If you are unsure whether or not the text you are entering will cause the page to refresh, it is best to use the “typeAndWait” command. This way, you can be sure that the next command will not be executed until the page has finished loading. RemoteWebDriver is used to test web applications on mobile devices. It can be used with a variety of browsers, including Safari, Chrome, and Firefox. FindElements() is used to find all the elements in the current web page matching the specified locator value.

C# is very close to C/C++and Javaprogramming languages. The language is proposed to be a simple, modern, general-purpose, object-oriented programming language. The language is used for creating software components. Dan is a software architect and technology professional focusing on applications of blockchain technologies.

Below you will find the top 50 questions with answers that are frequently asked in interviews. The Hashtable class represents a collection of key/value pairs that are organized based on the hash code of the key. The Hashtable class provides various types of methods that are used to perform different types of operations on the hashtables.

Consider the criticality of the test case in deciding if to automate it or not. The more critical test cases are better to be automated. In-house tools are custom-made by companies for their personal use. Vendor tools can also be referred to as companies developed tools.

In an abstract class, we can have some concrete methods. C# is an object-oriented, type-safe, and managed language that is compiled by .Net framework to generate Microsoft Intermediate Language. The .NET Framework class library contains https://wizardsdev.com/ many new generic collection classes in System.Collections.Generic namespace. Because it applies to is, one type is compatible with another if both are the equivalent of type, or if a reference, boxing, or unboxing conversion exists.