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Java / Design Patterns

Explain Java beans pattern.

Using JavaBeans pattern, you call a parameterless constructor to create the object and then call setter methods to set each required parameter and each optional parameter of interest as required. 

private Person person1= new Person();
person1.setFirstName("Steve");
person1.setLastName("Jobs");
person1.setDescription("Apple Founder");

This is an alternative to the telescopic constructor pattern. Java beans pattern allows inconsistency and mandates mutability which is a drawback.

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