What is a “Java Bean”? [duplicate]

Answer 1

JavaBeans are reusable software component written in java.The components can be configured and connected using builder tools.Three key properties that causes any class in java to become a javabean is

1.Class is serializable
2.class has a 0 argument constructor
3.class has getter and setter methods for data members

Here is a simple class that is eligible for becoming a javabean

import java.io.*;

public class Student implements Serializable {

    private String name = null;

    //0 argument constructor
    public Student() {
    }
   //getter method
   public String getName() {
        return name;
   }
   //settor method
   public void setName(final String name) {
       this.name = value;
   }

}