Useful VSCode Shortcuts List📝👨🏻‍💻

Ctrl + A - Select All
Alt + Shift + Up/Down - Copy Line Up/Down
Ctrl + Shift + K - Delete Line
Alt + Up/Down - Move Line Up/Down
Ctrl + - Toggle Terminal
Ctrl + B - Toggle Sidebar
Ctrl + Shift + D - Toggle Debug Panel
F5 - Start Debugging
Ctrl + Shift + E - Open Explorer
Ctrl + Shift + F - Find in Files
Ctrl + Shift + H - Replace in Files
Ctrl + Shift + M - Open Problems Panel
Ctrl + Shift + X - Open Extensions
Ctrl + Shift + - Show Integrated Terminal
Ctrl + Shift + L - Select All Occurrences
Ctrl + D - Add Selection to Next Find Match
Ctrl + Shift + D - Start/Stop Debugging
Ctrl + Shift + C - Open External Terminal
Ctrl + Shift + V - Open Markdown Preview
Ctrl + Shift + I - Format Document
Ctrl + Shift + U - Show Output
Ctrl + Shift + P - Open Command Palette
Ctrl + Shift + J - Open Debug Console
Ctrl + Shift + F12 - Toggle Full Screen
Ctrl + Shift + E - Toggle Explorer
Ctrl + Shift + T - Reopen Closed File
Ctrl + / - Toggle Line Comment
Ctrl + Shift + / - Toggle Block Comment
Alt + Shift + F - Format Document
Ctrl + K, Ctrl + S - Show Keyboard Shortcuts

#coding

Java coding interview questions

1. Reverse a String:
Write a Java program to reverse a given string.
2. Find the Largest Element in an Array:
Find and print the largest element in an array.
3. Check for Palindrome:
Determine if a given string is a palindrome (reads the same backward as forward).
4. Factorial Calculation:
Write a function to calculate the factorial of a number.
5. Fibonacci Series:
Generate the first n numbers in the Fibonacci sequence.
6. Check for Prime Number:
Write a program to check if a given number is prime.
7. String Anagrams:
Determine if two strings are anagrams of each other.

8. Array Sorting:
Implement sorting algorithms like bubble sort, merge sort, or quicksort.

9. Binary Search:
Implement a binary search algorithm to find an element in a sorted array.

10. Duplicate Elements in an Array:
Find and print duplicate elements in an array.

11. Linked List Reversal:
Reverse a singly-linked list.

12. Matrix Operations:
Perform matrix operations like addition, multiplication, or transpose.

13. Implement a Stack:
Create a stack data structure and implement basic operations (push, pop).

14. Implement a Queue:
Create a queue data structure and implement basic operations (enqueue, dequeue).

15. Inheritance and Polymorphism:
Implement a class hierarchy with inheritance and demonstrate polymorphism.

16. Exception Handling:
Write code that demonstrates the use of try-catch blocks to handle exceptions.
17. File I/O:
Read from and write to a file using Java's file I/O capabilities.
18. Multithreading:
Create a simple multithreaded program and demonstrate thread synchronization.
19. Lambda Expressions:
Use lambda expressions to implement functional interfaces.
20. Recursive Algorithms:
Solve a problem using recursion, such as computing the factorial or Fibonacci sequence.

Best Java Resources: https://t.iss.one/Java_Programming_Notes

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Programming languages and their uses in Ethical hacking :

Programming languages are essential tools for ethical hackers. They are used for tasks such as vulnerability testing, penetration testing, and developing exploits. Here are some programming languages that are commonly used in ethical hacking and their specific uses:

Python: Python is a high-level programming language that is easy to learn and widely used in the field of cybersecurity. It is used for tasks such as penetration testing, reverse engineering, and scripting. Python has a large community of developers who create and maintain libraries that can be used for security purposes, such as Scapy for packet manipulation, PyCrypto for encryption and decryption, and BeautifulSoup for web scraping.

Ruby: Ruby is another high-level programming language that is popular in the cybersecurity community. It is used for developing exploits and automating tasks. Metasploit, one of the most widely used penetration testing tools, is written in Ruby.

C/C++: C and C++ are low-level programming languages that are used for writing exploits and developing rootkits. They are also used for reverse engineering and vulnerability testing. Many of the tools used in ethical hacking, such as Nmap, Wireshark, and Tcpdump, are written in C/C++.

JavaScript: JavaScript is a popular scripting language that is used for web application security testing. It is used for tasks such as cross-site scripting (XSS) and cross-site request forgery (CSRF) testing. Many web-based security tools, such as Burp Suite, are written in JavaScript.

Bash: Bash is a shell scripting language that is used for automating tasks and creating custom scripts. It is commonly used for tasks such as password cracking and network scanning.

SQL: SQL is a database programming language that is used for exploiting and testing SQL injection vulnerabilities in web applications.

In addition to these languages, there are many other programming languages that can be used in ethical hacking, such as Perl, PHP, and Java. The choice of programming language will depend on the specific task at hand and the preference of the individual ethical hacker.

Top Platforms for Building Data Science Portfolio

Build an irresistible portfolio that hooks recruiters with these free platforms.

Landing a job as a data scientist begins with building your portfolio with a comprehensive list of all your projects. To help you get started with building your portfolio, here is the list of top data science platforms. Remember the stronger your portfolio, the better chances you have of landing your dream job.

1. GitHub
2. Kaggle
3. LinkedIn
4. Medium
5. MachineHack
6. DagsHub
7. HuggingFace

7 Websites to Learn Data Science for FREE🧑‍💻

✅ w3school
✅ datasimplifier
✅ hackerrank
✅ kaggle
✅ geeksforgeeks
✅ leetcode
✅ freecodecamp

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❇️ How to Find Server’s IP Address of Any Website
➖➖➖➖➖➖➖➖➖➖➖➖➖➖

💠 Using Command Prompt For Windows

👉 In this method essentially ping commands work for us to locate the IP address of any site. Actually, the ping command works on ICMP protocol which is made for servers address. Hence this command uses to locate the server address.

🔹Step 1: Click on the Start button and type CMD. Open CMD from the list.

🔹Step 2: Now you will see an elevated Command Prompt Window.

🔹Step 3: Type ping Site name (for ex-ping Kalilinux.com ).
And press Enter.

✅ Now, this will show you the IP address of the site and all trip details of the site location.

💠 Using Terminal In MAC Or Linux

👉 The terminal is like the command prompt but it is for Linux and macOS. In this, we can use the same command that we did in CMD. Now in this terminal, you will lookup for the Ip address of any site using a simple command.

🔹Step 1: Open terminal by a pressing CTRL+ALT+T ok keyboard at once.

🔹Step 2: Now type ping -c1 Sitename (for ex:- ping -c1 kalilinux.com).

✅ The above command will display the IP address of the entered website.