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javaclassjavabeanspojo

What is java pojo class, java bean, normal class?

Possible Duplicate:
Difference between DTO, VO, POJO, JavaBeans?

Hi please don't say my question is duplicate :-) I saw all questions but didn't understand the exact difference.

Can someone explain what is POJO, Bean, Normal Class in easy language?

Solution

    1. Normal Class: A Java class

    2. Java Beans:

      • All properties private (use getters/setters)
      • A public no-argument constructor
      • Implements Serializable.

    3. Pojo: Plain Old Java Object is a Java object not bound by any restriction other than those forced by the Java Language Specification. I.e., a POJO should not have to

      • Extend prespecified classes
      • Implement prespecified interface
      • Contain prespecified annotations