Udemy - Java DSA - LEETCODE Exercises - Arrays and Strings Master...

Java DSA: LEETCODE Exercises — Arrays & Strings Mastery

https://WebToolTip.com

Published 8/2026
Created by Jitendra Suryavanshi
MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz, 2 Ch
Level: All Levels | Genre: eLearning | Language: English | Duration: 10 Lectures ( 42m ) | Size: 409.2 MB

Java DSA — Arrays & Strings Mastery (Solution Code with Detailed Explanations) | Coding Practice Exercises

What you'll learn
⚡ Master High-Frequency LeetCode Exercises: Confidently solve over 50+ medium and hard-level LeetCode Array and String problems using idiomatic, production-ready
⚡ Apply Key Algorithmic Patterns: Identify and execute core patterns—including Two Pointers, Sliding Window, Prefix Sums, and Fast & Slow pointers—on unseen codin
⚡ Optimize Memory and Space Efficiency: Implement $O(1)$ auxiliary space solutions using in-place array manipulation and swap techniques to eliminate redundant ob
⚡ Leverage Java String Internals: Choose the right memory tool (String, StringBuilder, StringBuffer, or char[]) to optimize runtime, avoid unnecessary heap alloca
⚡ Analyze Big-O Complexity: Conduct precise time and space complexity evaluations for every solution, clearly differentiating between worst-case, average-case, an
⚡ Manipulate 2D Arrays & Matrices: Master advanced matrix operations, including in-place matrix rotations, dynamic spiral traversals, matrix searching, and coordi
⚡ Solve Complex String & Pattern Matching Problems: Process string manipulation challenges involving palindromes, anagrams, substring searches, and custom parsing
⚡ Handle Interval & Overlapping Array Problems: Implement algorithms for interval merging, activity insertion, dynamic range queries, and cyclic sorting patterns.
⚡ Master Subarray and Window Optimization: Solve dynamic array problems using Kadane’s Algorithm, fixed and variable Sliding Window mechanics, and prefix/suffix p
⚡ Debug Edge Cases and Boundary Conditions: Systematically identify and prevent common interview pitfalls such as index-out-of-bounds errors, off-by-one errors, e
⚡ Utilize Standard Java Collections Efficiently: Apply ArrayList, Arrays utility methods, HashMap, and HashSet alongside primitive arrays to construct high-perfor
⚡ Communicate Technical Trade-offs Like a Senior Engineer: Articulate your step-by-step reasoning, compare brute-force vs. optimized approaches, and justify struc

Requirements
❗ Basic Java Knowledge: Familiarity with core Java syntax (variables, loops, conditionals, and methods)—no advanced DSA experience required!
❗ A Computer & Java IDE: Any PC, Mac, or Linux machine with Java (11+) installed and an IDE of your choice (IntelliJ, VS Code, or Eclipse).