SQL Interview Questions
1.) Explain order of execution of SQL.2.) What is difference between where and having?3.) What is the use of group by?4.) Explain all types of joins in SQL?5.) What are…
Java interview questions
1. Java 8 Features & Functional Programming This is the hottest topic on Java interviews currently and I have increasingly see interviewer looking for candidates who knows how to write…
Interview Exp – 3 – Meta
Got offers from Meta and Capital One! My experiences and suggestions. Hello everyone. I've recently wrapped up the interview process for Meta (E4 SWE) and Capital One (Senior Software Engineer)…
DSA Java methods
Arrays:int[] arr = new int[size];int[] numbers = {1, 2, 3, 4, 5};int[][] matrix = {{1, 2, 3},{4, 5, 6},{7, 8, 9}};for( int num : nums).length Strings:.toCharArray() Hashmap: Map<Character, Integer> count…
Arrays
Must-Know Array DSA Topics with Time & Space Complexity Below is a comprehensive list of must-know Array DSA topics, including time & space complexity for common operations. 🔹 Basic Array…
Java interview questions
Hello friends, in the last 6 months, I have attended more than 50 Java interviews across different companies, ranging from startups to large enterprises like investment banks like UBS, Citi,…
Code best practices java
Here are 10 coding best practices that have helped me write better Java code— and how you can apply them in your projects. 1. Avoid Null References Using Optional Problem: NullPointerException is one…
FencePost & Semi-Open Intervals
Let me explain fencepost errors and semi-open intervals in a clear and detailed manner: 1. Fencepost Error A fencepost error occurs in programming when an algorithm includes one extra or…
DSA Coding Interview Concepts
Arrays:Binary search,Sorting,sliding window,2 pointer, prefix sum, stacks,Greedy,DPQuestions:704. Binary Search (E)74. Search a 2D Matrix(M)153. Finding Minimum in a sorted array(M)33. search in a rotated array(M)4. Median of two sorted arrays…
Interview resources
Resources: https://medium.com/@shivambhadani_/system-design-for-beginners-everything-you-need-in-one-article-c74eb702540b [Super Awesome👆] https://workat.tech/machine-coding/practice https://www.youtube.com/playlist?list=PLMCXHnjXnTnvo6alSjVkgxV-VH6EPyvoX https://codewitharyan.com/system-design/low-level-design https://github.com/lavakumarThatisetti/Machine-Coding-Round
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