What is a class and object example?

Object − Objects have states and behaviors. Example: A dog has states – color, name, breed as well as behaviors – wagging the tail, barking, eating . An object is an instance of a class. Class − A class can be defined as a template/blueprint that describes the behavior/state that the object of its type support.

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What is list of objects in Java?

The List interface in Java provides a way to store the ordered collection. It is a child interface of Collection. It is an ordered collection of objects in which duplicate values can be stored . Since List preserves the insertion order, it allows positional access and insertion of elements.

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What are objects types in Java?

Object Data Type: These are also referred to as Non-primitive or Reference Data Type. They are so-called because they refer to any particular objects. Unlike the primitive data types, the non-primitive ones are created by the users in Java. Examples include arrays, strings, classes, interfaces etc .

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What is object in Java define?

A Java object is a member (also called an instance) of a Java class . Each object has an identity, a behavior and a state. The state of an object is stored in fields (variables), while methods (functions) display the object’s behavior. Objects are created at runtime from templates, which are also known as classes.9 Eyl 2021

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What is object why it is used?

An object is an abstract data type with the addition of polymorphism and inheritance . Rather than structure programs as code and data, an object-oriented system integrates the two using the concept of an “object”. An object has state (data) and behavior (code). Objects can correspond to things found in the real world.

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