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57 results for "HashMap class in java"

Construct a Full Binary Tree from Preorder and Mirror Preorder Traversal

Sandhiya Priya

1moPublished Jul 27, 2026, 4:13 AMUpdated Jul 27, 2026, 4:19 AM

1.5k

Count Substrings with More 1's than 0's

Sandhiya Priya

1moPublished Jul 4, 2026, 3:53 AMUpdated Jul 6, 2026, 5:26 AM

402

Minimum Insertions and Deletions to Convert One Array into Another (O(N log N))

Sandhiya Priya

2moPublished Jun 30, 2026, 3:37 AMUpdated Jul 1, 2026, 4:57 AM

319

Count Subset With Target Sum II – Meet in the Middle Java Solution

Sandhiya Priya

2moPublished Jun 5, 2026, 5:14 AMUpdated Jun 8, 2026, 3:44 AM

388

Palindrome Pairs in an Array of Strings – Java Solution with HashMap

Sandhiya Priya

3moPublished Jun 5, 2026, 4:56 AMUpdated Jun 5, 2026, 9:41 AM

2.2k

Next Element With Greater Frequency – Java O(n) Stack Solution

Sandhiya Priya

3moPublished Jun 5, 2026, 5:07 AMUpdated Jun 5, 2026, 6:39 AM

2.1k

Substrings With Exactly K Distinct Characters

Sandhiya Priya

4moPublished Apr 27, 2026, 11:01 AMUpdated May 6, 2026, 11:12 AM

1.1k

Subarrays With At Most K Distinct Integers

Sandhiya Priya

4moPublished Apr 27, 2026, 10:58 AMUpdated May 6, 2026, 11:00 AM

484

Count Distinct Elements in Every Window

Sandhiya Priya

4moPublished Apr 27, 2026, 4:19 AMUpdated May 5, 2026, 10:46 AM

510

Number of BSTs From Array

Sandhiya Priya

4moPublished Apr 27, 2026, 3:38 AMUpdated May 1, 2026, 5:26 AM

351

Length of Longest Cycle in a Directed Graph

Sandhiya Priya

4moPublished Apr 22, 2026, 8:23 AMUpdated Apr 23, 2026, 10:49 AM

505

How to Detect and Fix Memory Leaks in Java Applications

Ananya Desai

6moPublished Feb 20, 2026, 4:52 AMUpdated Feb 20, 2026, 9:46 AM

2.2k

Valid Anagram Problem in DSA (String + Hashing)

Nidhi Sharma

7moPublished Jan 15, 2026, 12:25 PMUpdated Jan 15, 2026, 12:39 PM

793

Group Anagrams Problem in DSA (Simple Explanation with Code)

Nidhi Sharma

7moPublished Jan 13, 2026, 8:53 AMUpdated Jan 13, 2026, 8:58 AM

3.2k

Sliding Window Technique in DSA (Longest Substring Without Repeating Characters)

Nidhi Sharma

7moPublished Jan 8, 2026, 5:16 AMUpdated Jan 8, 2026, 6:10 AM

4.1k

Two Sum Problem in DSA (Array + HashMap Approach)

Nidhi Sharma

7moPublished Jan 7, 2026, 7:14 AMUpdated Jan 7, 2026, 8:40 AM

2.6k

Difference Between HashMap, LinkedHashMap, and TreeMap in Java

Saurav Kumar

9moPublished Dec 3, 2025, 11:30 AM

1.9k

How to Detect Circular Dependency in Java Modules

Aarav Patel

10moPublished Oct 17, 2025, 12:00 AMUpdated Oct 17, 2025, 8:19 AM

6.2k

📝 How to Remove Duplicates from an Array in Programming

Avnii Thakur

10moPublished Oct 9, 2025, 12:00 AMUpdated Oct 9, 2025, 10:22 AM

2.9k

Top K Frequent Elements in an Array: Heap and Hash Map Solutions

Ananya Desai

1yPublished Aug 13, 2025, 5:20 AM

What is the Two Sum Problem in DSA.

Ananya Desai

1yPublished Aug 12, 2025, 4:43 AM

1.1k

How does a HashMap work internally in Java?

Aarav Patel

1yPublished Aug 9, 2025, 8:12 AM

1.8k

Best Practices for Writing Clean & Maintainable Code

Himanshu Patel

1yPublished Mar 10, 2025, 5:03 AM

3.9k

Print Fibonacci Series in Java Using Different Methods

Vijay Kumari

1yPublished Jan 17, 2025, 9:34 AM

3.1k

Application State vs Session State in Java

Aman Gupta

1yPublished Sep 30, 2024, 12:00 AMUpdated Sep 30, 2024, 8:36 AM

2.6k

1 - 25 of 57

57 results for "HashMap class in java"

Construct a Full Binary Tree from Preorder and Mirror Preorder Traversal

Count Substrings with More 1&#39;s than 0&#39;s

Minimum Insertions and Deletions to Convert One Array into Another (O(N log N))

Count Subset With Target Sum II – Meet in the Middle Java Solution

Palindrome Pairs in an Array of Strings – Java Solution with HashMap

Next Element With Greater Frequency – Java O(n) Stack Solution

Substrings With Exactly K Distinct Characters

Subarrays With At Most K Distinct Integers

Count Distinct Elements in Every Window

Number of BSTs From Array

Length of Longest Cycle in a Directed Graph

How to Detect and Fix Memory Leaks in Java Applications

Valid Anagram Problem in DSA (String + Hashing)

Group Anagrams Problem in DSA (Simple Explanation with Code)

Sliding Window Technique in DSA (Longest Substring Without Repeating Characters)

Two Sum Problem in DSA (Array + HashMap Approach)

Difference Between HashMap, LinkedHashMap, and TreeMap in Java

How to Detect Circular Dependency in Java Modules

📝 How to Remove Duplicates from an Array in Programming

Top K Frequent Elements in an Array: Heap and Hash Map Solutions

What is the Two Sum Problem in DSA.

How does a HashMap work internally in Java?

Best Practices for Writing Clean &amp; Maintainable Code

Print Fibonacci Series in Java Using Different Methods

Application State vs Session State in Java

Count Substrings with More 1's than 0's

Best Practices for Writing Clean & Maintainable Code