Deloitte Full Stack Developer Interview Questions and Answers

Q1. Write a java program to sort an array
Ans. 
Java program to sort an array of strings
• Use Arrays.sort() method to sort the array of strings

• Import java.util.Arrays package

• Example: String[] arr = {"apple", "banana", "orange"}; Arrays.sort(arr);
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Q2. Collections in java and springboot
Ans. 
Collections in Java and Spring Boot are used to store and manipulate groups of objects.
• Collections in Java are used to store multiple objects in a single unit.

• Spring Boot provides support for managing collections through various data structures like List, Set, Map, etc.

• Collections in Java and Spring Boot help in organizing and manipulating data efficiently.

• Example: List<String> names = new ArrayList<>();
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Q1. Plugin pipeline based scenario question which will trigger first?
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Q2. Which jscript method used to prevent form save??
Ans. 
The onbeforeunload method is used to prevent form save.
• Use the onbeforeunload method to display a warning message before leaving the page without saving the form.

• Return a custom message in the method to prompt the user to confirm if they want to leave the page.

• Example: window.onbeforeunload = function() { return 'Are you sure you want to leave this page without saving?'; };
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Q1. Behavioral interview
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Q2. Package negotiations
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Q1. What is dom? in javaScript
Ans. 
DOM stands for Document Object Model. It is a programming interface for web documents that allows scripts to dynamically access and update the content, structure, and style of a webpage.
• DOM is a tree-like structure that represents the elements of an HTML document.

• It allows developers to manipulate the content and structure of a webpage using JavaScript.

• Example: document.getElementById('myElement') allows you to access
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Q2. What is virtual dom in react js
Ans. 
Virtual DOM is a lightweight copy of the actual DOM in React.js, used for efficient updates and rendering.
• Virtual DOM is a concept where a lightweight copy of the actual DOM is maintained by React.js.

• It allows React to efficiently update and render components by comparing the virtual DOM with the actual DOM.

• When changes are made to the virtual DOM, React calculates the most efficient way to update the actual DOM.

• This h...read more
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Basic coding

Q1. Confidential sorry can't reveal them
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Q1. Reversea a linked , kadene algorithim nd basic springboot , microservices question
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