Can we create the instance for abstract classes

No, you cannot create an instance of an abstract class because it does not have a complete implementation. The purpose of an abstract class is to function as a base for subclasses. It acts like a template, or an empty or partially empty structure, you should extend it and build on it before you can use it.
abstract class MyAbstractClass {}
MyAbstractClass obj = new MyAbstractClass(); //not valid
When you try to compile the above code, you will get the Error message like: "Cannot create an instance of the abstract class or interface" .
Abstract Class and Interface

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