![]() There are several packages like "Java.Lang", "Java.Time", and "Java.Math" are mostly used in Java programming.Īn interface can have several abstract methods, and if we implement that interface, we need to define its abstract methods in our programs. We have to learn about the Packages, Interfaces, Nested interfaces, and Abstract Classes in these four days. Different keywords like This and Super.Īfter knowing all the principles mentioned above, we are ready to go one step more.Polymorphism or Runtime Polymorphism and Compile-time Polymorphism.We should have to gain knowledge of the following concepts in two days. ![]() To learn Java, we should have command on the Oops concepts like Polymorphism, Encapsulation, Inheritance, and Abstraction because Java works on these principles. At this stage, we should have proper knowledge of Objects, Classes, and Methods. Now, we are ready to dive into core Java programming.
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