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What is JavaBean?

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B.E. (IT)

A JavaBean is just a standard All properties private (use getters/setters) A public no-argument constructor Implements Serializable. That's it. It's just a convention. Lots of libraries depend on it though.... With respect to Serializable, from the API documentation: Serializability...
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A JavaBean is just a standard All properties private (use getters/setters) A public no-argument constructor Implements Serializable. That's it. It's just a convention. Lots of libraries depend on it though.... With respect to Serializable, from the API documentation: Serializability of a class is enabled by the class implementing the java.io.Serializable interface. Classes that do not implement this interface will not have any of their state serialized or deserialized. All subtypes of a serializable class are themselves serializable. The serialization interface has no methods or fields and serves only to identify the semantics of being serializable. In other words, serializable objects can be written to streams, and hence files, object databases, anything really. Also, there is no syntactic difference between a JavaBean and another class -- a class defines a JavaBean if it follows the standards. There is a term for it because the standard allows libraries to programmatically do things with class instances you define in a predefined way. For example, if a library wants to stream any object you pass into it, it knows it can because your object is serializable (assuming the lib requires your objects be proper JavaBeans). read less
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Software Engineer with 15 years of Professional experience in MNCs (JP Morgan, TCS, Mastek)

A JavaBean is a plain-old Java object (POJO) class that adheres to the following standard: 1) has a no-arg constructor 2) private properties that are accessed only through setter/getter methods that adhere to a simple naming convention 3) is Serializable.
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Big Data Expert

A Java bean is a normal POJO(Plain old java object) class which consist of setters and getters method for the instance variable declared. They are basically used as transfer object in a java Application.
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Java Web Application Development and Aptitude Trainer

A Java Bean is nothing but a plain old java object; what it means is that its an object with various private properties that are accessed through getter and setters, it should have a no arg constructor so that the object can be created without any external inputs, and the object should be serializabl...
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12 years of MNC company work experience on java ,J2ee technologies

All javabeans are pojos ,But not all pojos are not javabeans.
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Trainer

In computing based on the Java Platform, JavaBeans are classes that encapsulate many objects into a single object (the bean). They are serializable, have a zero-argument constructor, and allow access to properties using getter and setter methods.
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