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FAQs

In Java, a class is a non-primitive or user-defined data type, whereas an object is a class instance. Because a class defines the essence of an object, it is the foundation upon which all of Java is built.

Objects are essential in OOPs because they can be used to call non-static functions that are not available in the Main Method but are present in the Class, as well as offer a name for the data storage area.

Java is a computer programming language that is used to develop software applications. Java has a rich set of data types and methods that can be used to create complex algorithms for a variety of purposes.

The String variable contains the value of the object's reference variable and has methods to manipulate it further. For example, you could use substring() to get a part of the string in between two given indexes or to remove characters from it.

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