remember it daily

Java Coding Questions

• TOPICS JAVA For Java backend warriors*****

Atomic Integer in multiThreading Enviroment

Multitasking vs Multithreading in java

☕ Java 8 → Java 17 Spring Boot Migration — Interview Prep Notes

Observalbility tools

🐘 PostgreSQL & SQL — Complete Notes

1. Core Java (OOPs, Logic, & Memory)

• 1. OOPs Fundamentals: Explain the 4 pillars (Abstraction, Encapsulation, Inheritance, Polymorphism)

• Composition Vs Inheritence

• 1. Diamond Problem: What is the diamond problem in inheritance, and how does Java solve it using Interfaces?
• 1. Inheritance Types: What types of inheritance does Java support? Why is multiple inheritance not supported for classes?
• 1. Keywords: Difference between final, finally, and finalize

• Custome Immutable class

• 1. Volatile vs. Synchronized: Explain the difference between the volatile keyword and synchronized blocks
• 1. Method Overloading vs. Overriding: Provide examples. Can we change the access modifier/scope of a method when overriding?