• Declaration And Initialization
• Traversals In Array
• Prefix Sum And Optimization Technique
• Rotation Of Array
• Kadane's Algorithm
• Product Of Array Except Self

• Declaration And Initialization
• Traversals In ArrayList
• Memory Management And Functions Of ArrayList
• Comparison Between Arrays And ArrayList
• Problems Based On Functions Of ArrayList

• Declaration And Initialization
• Memory Management And Traversals
• Search Element And Transpose Of A Matrix
• Rotate A Matrix And Spiral Traversal Of A Matrix

• Declaration And Initialization
• Memory Management And Traversals
• Functions Of String And Reverse Operations
• Valid Anagrams
• Isomorphic Strings
• Substring With Only 1's

• Declaration And Initialization
• Memory Management And Traversals
• Functions Of StringBuilder
• Comparison Of String And StringBuilder
• Problems Based On Functions Of StringBuilder

• Recursion Faith-Expectation Approach
• Recursion Stack Diagram
• Recursive Tree And Recursion In Arrays
• Recursion Through Stack Compared To Recursion Through Tree Diagram

• Big-0, Omega And Theta Notation
• Time Complexity Through Mathematical Equation
• Time And Space Complexity Of Recursive Code
• Time Complexity In Arrays And ArrayList

• Classes And Object
• Constructor And Polymorphism
• Inheritance And Access Modifier
• Encapsulation, Abstraction, Interfaces, And Static Keyword

• Declaration And Initialization Of Stack
• Function Of Stack
• Design Based Questions
• Evaluation Based Questions

• Design A LinkedList
• Implementing Functions Of LinkedList
• Mid, Reverse, And Palindrome Of LinkedList
• Add, Merge, Sort, And Detect Cycle Of LinkedList

• Binary Trees Traversals
• Minimum And Maximum Element Of Tree
• Height, Sum Of Nodes, And Path Sum Of Tree
• K-Down Nodes, Diameter Of A tree, Find An Element, LCA, Invert, And View Of Tree

• HashMap Introduction
• Print Frequency Of All Elements In An Array
• Two Sum And Intersection Of Two Arrays

• Heap Introduction And Functions
• Application-Based Problem