This video explains about What is Interfaces and advantages of interfaces with example java program
Here are the key chapters from the video:
Introduction to Interfaces (0:00 - 0:56)
Syntax and Interface Definitions (0:57 - 2:21)
Example: Payment Processing System (2:22 - 5:44)
Advantages: Loose Coupling (5:45 - 6:53)
Advantages: Complete Abstraction (6:54 - 7:21)
Advantages: Polymorphism and Runtime Binding (7:22 - 8:54)