๐ Top 500 Java Interview Questions (With Topics) 1. Core Java Basics What is Java? What are the features of Java? What is JVM, JRE, JDK? Difference between JDK and JRE? Explain the Java execution flow. What are data types in Java? What is type casting? What are variables in Java? What are literals in Java? Difference between primitive and non-primitive data types? What is a wrapper class? Explain autoboxing and unboxing. Difference between == and .equals() ? What are operators in Java? What is precedence of operators? What is ternary operator? Difference between && and & ? What are bitwise operators? What is instanceof operator? What are control statements in Java? 2. OOPs Concepts What is Object-Oriented Programming (OOP)? What are the four pillars of OOP? What is class and object? What is constructor? Types of constructors in Java? Difference between constructor...
Git And GitHub Collaborators and teams ๐ง 1. Version Control System: Git ➤ Git kya hai? Git ek version control system hai jisse aap apne code ka pura record rakh sakte hain, aur multiple developers ek hi codebase pe parallel kaam kar sakte hain bina conflict ke. ๐ 2. Remote Repository: GitHub / GitLab / Bitbucket Ye platforms Git ka remote version rakhte hain jahan aapka project host hota hai aur sab developers access karte hain. ๐ Step-by-Step Setup (Multi-Developer Collaboration) ✅ Step 1: Git Install karo Windows: https://git-scm.com/download/win Install karne ke baad, command line me check karo: check karo git version git --version ✅ Step 2: GitHub Account banao (ya GitLab / Bitbucket) https://github.com pe account banao Ek new repository create karo. ✅ Step 3: Local Git Setup Run this command Terminal ya Git Bash me run karo: git config --g...
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