- Kunal's notes
- Object Oriented Paradigms
GFG - Constructors in Java
GFG - Constructor chaining in Java
GFG - Inheritance in Java
GFG - Overriding in Java
GFG - Abstraction in Java
GFG - Access modifiers in Java
GFG - Wrapper Classes in Java
GFG - Need of wrapper classes in Java
GFG - this keyowrd in Java
Javatpoint - Important keyowrds in Java inheritance - extends,implements,super,instanceof
Tutorialspoint - Instance initializer block
Javatpoint - Dynamic Method Dispatch or Runtime Polymorphism in Java
GFG - Cohesion in Java
GFG - Coupling in Java
GFG
- Can we declare main() method as private or protected or with no access modifier in java?
Tutorialspoint - Difference between Method Overloading and Method Overriding in Java?
GFG - Can we declare interface members as private or protected in java8?
Tutorialspoint - Can we override a private or static method in Java?
Tutorialspoint - What is diamond problem in Java?
Javatpoint - Can we pass this keyword as argument in a method call?
Javatpoint - Java constructor returns a value, but what?
Javatpoint - What is covariant return type?
Javatpoint - Private classes and singleton classes in Java
GFG - How to prevent Singleton Pattern from Reflection, Serialization and Cloning?
GFG - Double-Check Locking For Singleton Class
GFG
- Inheritance I
HackerRank - Inheritance II
HackerRank - Java Abstract class
HackerRank - Interface
HackerRank - Method Overriding I
HackerRank - Method Overriding II (Use super keyword)
HackerRank - Java instanceof keyword
HackerRank - Java Iterator
HackerRank