--- title: "Aman Walke (@AmanVW) | Hashnode" description: "Developer with some free time to solve problems and share with the world! Read the latest articles by Aman Walke on Hashnode." url: "https://hashnode.com/@AmanVW" --- @AmanVW # Aman Walke @AmanVW · Pune · Joined May 2025 Developer with some free time to solve problems and share with the world! ### [Roman to Integer: LeetCode Java Solution](https://amanvw.hashnode.dev/roman-to-integer-leetcode-java-solution?utm_source=hashnode&utm_medium=feed) Solve LeetCode Problem 13: Roman to Integer using Java with subtractive notation and optimize for time and space complexity 3 min read · [amanvw.hashnode.dev](https://amanvw.hashnode.dev/roman-to-integer-leetcode-java-solution?utm_source=hashnode&utm_medium=feed) [Apr 6, 2025](https://hashnode.com/posts/roman-to-integer-leetcode-java-solution/684dad65b7dc565b32bb0665) ### [Palindrome Number - LeetCode Java Solution](https://amanvw.hashnode.dev/palindrome-number-leetcode-java-solution?utm_source=hashnode&utm_medium=feed) Learn how to solve LeetCode Problem 9: Palindrome Number using Java including edge case handling, and performance evaluation. 3 min read · [amanvw.hashnode.dev](https://amanvw.hashnode.dev/palindrome-number-leetcode-java-solution?utm_source=hashnode&utm_medium=feed) [Mar 31, 2025](https://hashnode.com/posts/palindrome-number-leetcode-java-solution/684dab3669dad438eddb4f24) ### [Java 8 Lambda Expressions: A Beginner's Guide with Real Examples](https://amanvw.hashnode.dev/java-8-lambda-expressions-a-beginners-guide-with-real-examples?utm_source=hashnode&utm_medium=feed) A complete guide for beginners to understand usage of lambda expressions 3 min read · [amanvw.hashnode.dev](https://amanvw.hashnode.dev/java-8-lambda-expressions-a-beginners-guide-with-real-examples?utm_source=hashnode&utm_medium=feed) [Feb 27, 2025](https://hashnode.com/posts/java-8-lambda-expressions-a-beginners-guide-with-real-examples/68213ac19982336d31fe6ed9) ### [Spring Boot - Query Parameters](https://amanvw.hashnode.dev/spring-boot-query-parameters?utm_source=hashnode&utm_medium=feed) Create a simple spring-boot application which accepts query parameters and renders response based on those inputs 3 min read · [amanvw.hashnode.dev](https://amanvw.hashnode.dev/spring-boot-query-parameters?utm_source=hashnode&utm_medium=feed) [Feb 23, 2025](https://hashnode.com/posts/spring-boot-query-parameters/682108b6ceea6072c4d5259d) ### [Getting Started with Spring Boot: Your First "Hello, World!" REST API](https://amanvw.hashnode.dev/spring-boot-hello-world?utm_source=hashnode&utm_medium=feed) Learn how to build your first Spring Boot REST API with Java. This beginner-friendly guide walks you through project setup, creating a controller, and retur 4 min read · [amanvw.hashnode.dev](https://amanvw.hashnode.dev/spring-boot-hello-world?utm_source=hashnode&utm_medium=feed) [Feb 14, 2025](https://hashnode.com/posts/spring-boot-hello-world/6820e48df44016c527226e98)