Which exception is thrown when an array is accessed with an invalid index in Java?
Anonymous Quiz
25%
NullPointerException
69%
ArrayIndexOutOfBoundsException
6%
ArithmeticException
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Which of the following is used to handle exceptions in Java?
Anonymous Quiz
80%
try-catch block
14%
if-else block
6%
for loop
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Which class is the superclass of all exceptions in Java?
Anonymous Quiz
47%
Throwable
47%
Exception
6%
Error
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What quiz would you like to see this week?π€
Anonymous Poll
12%
General IT
17%
HTML
5%
CSS
22%
JavaScript
17%
SQL
9%
C
3%
C#
10%
C++
6%
Other (Leave Comment)
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List of Developer Income Ideas π°π¨π»βπ»
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Freelancing & Contract Work
πΉ Upwork / Fiverr / Toptal Projects
πΉ Custom Website & App Development
πΉ API Development & Integration
πΉ Web Scraping Services
πΉ Chatbot Development
πΉ Automation Scripts
πΉ WordPress Plugin Development
Product Development
πΈ SaaS (Software as a Service)
πΈ Mobile Apps with In-App Purchases
πΈ Browser Extensions
πΈ Subscription-Based Tools
πΈ AI-Powered Tools & APIs
πΈ Open-Source Sponsorships
Content Creation & Education
πΊ YouTube Tutorials
πΊ Technical Blogging
πΊ Online Courses (Udemy, Gumroad)
πΊ Paid Newsletters (Substack)
πΊ eBooks on Programming Topics
πΊ Live Coding Streams
Investments & Passive Income
π° Selling Templates & Code Snippets
π° Licensing Code & Libraries
π° Selling Digital Products (UI Kits, Themes)
π° Stock Market / Crypto Trading Bots
π° AI Model Training & Selling
#techinfo
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What is the primary purpose of JavaScript in web development?
Anonymous Quiz
14%
Styling web pages
77%
Adding interactivity to web pages
9%
Managing databases
π3
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What does the typeof operator return for null?
Anonymous Quiz
14%
"object"
54%
"null"
32%
"undefined"
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Which method is used to convert a JSON string into an object?
Anonymous Quiz
35%
JSON.stringify()
39%
JSON.parse()
26%
JSON.convert()
π2
Which built-in JavaScript method removes the last element of an array?
Anonymous Quiz
64%
pop()
20%
shift()
16%
splice()
π2π1
β€1π₯1
How does JavaScript handle asynchronous operations?
Anonymous Quiz
18%
By using threads
38%
By waiting for each operation to complete before moving on
44%
With callbacks, promises, and async/await
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What does the reduce() method do?
Anonymous Quiz
41%
Reduces the size of an array
30%
Filters an array based on conditions
29%
Accumulates array values into a single result
β€1π1π₯1
What happens if you declare the same variable twice with let in the same scope?
Anonymous Quiz
30%
It throws an error
30%
The second declaration is ignored
40%
It overrides the first declaration
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