Kira Mcelvain

Does Java support default parameter values

Java does not support default parameter values in the same way languages like Python or C++ do. That means you can’t define a method like this: void greet(String name = "Guest") { ... } // ❌ Not valid in JavaBut don’t worry — Java has a different way to handle this: method overloading. Instead of providing default…

Java

Answered Jun 25, 2025 · 1.2K Views Read answer →

How do you roll back (reset) a Git repository to a particular commit?

Sometimes, things go wrong and you just want to hit "undo" in your Git project. Luckily, Git provides several ways to roll back or reset your repository to a previous commit — but each has different consequences, so it’s important to choose the right one for your situation. 1. git reset – for local undo If you haven’t…

Devops

Answered Jun 16, 2025 · 1.3K Views Read answer →

Is there any software related to uml generator java?

Visual Paradigm is a very good tool for diagrams. I've used it during my university a few years back as a uml generator java to draw diagrams and generate code from the diagramsUML, and I've always seen an option to do the reverse but haven't used it personally. They have a feature that called (Round-trip code…

Java

Answered Oct 10, 2022 · 1.1K Views Read answer →

dplyr: “Error in n(): function should not be called directly”

To solve error: this function should not be called directly, you can try the following: Make sure you load plyr first Both dplyr and plyr have the functions summarise/summarize. Look at the outcomes of conflicts() to see masked objects. Use summarize with the package, something like this dplyr::summarize(count = n())…

Data Science

Answered Jun 6, 2021 · 1.4K Views Read answer →

git pull specific branch

Syntax for git pull specific branch git pull [options] [ [...]]and in the examples section: Merge into the current branch the remote branch next: $ git pull origin nextSo you want to do something like: git pull origin devTo set it up. so that it does this by default while you're on the dev branch: git branch…

Devops

Answered May 20, 2021 · 1.4K Views Read answer →

What are the types of WebDriver APIs available in Selenium?

Diverse types of WebDriver API available in Selenium are as follows: Firefox Driver Gecko Driver InternetExplorer Driver Chrome Driver HTMLUnit Driver Opera Driver Safari Driver Android Driver iPhone Driver EventFiringWebDriver

QA Testing

Answered Feb 18, 2020 · 2.0K Views Read answer →

What are the various special exceptions you face in Selenium Webdriver?

WebDriverException, NoAlertPresentException, NoSuchWindowException, NoSuchElementException, TimeoutException.

QA Testing

Answered Jan 19, 2020 · 1.4K Views Read answer →

Explain when we can use Transition Table?

In all the techniques we used to perform specification validations be it Equivalence partitioning, Boundary value analysis or decision table, in none of these techniques the output of previous result affects or decides the behavior of next step or next input. We use transition diagram only at places where every step…

QA Testing

Answered Dec 26, 2019 · 1.5K Views Read answer →

Mention few advantages of performing Integration testing?

◼ Each module in software development is developed by different programmers whose approach and understanding may differ from module to module. Integration testing becomes important to ensure that these developed modules when assembled works in unity. ◼ There are various instances in which there’s creeping requirements…

QA Testing

Answered Nov 20, 2019 · 1.3K Views Read answer →