Java installation provides 'serialver' command line tool, to get the Serialversionuid of a serialized class.
Open command prompt (or) terminal, type 'serialver' command, you can get the usage help.
$ serialver
use: serialver [-classpath classpath] [-show] [classname...]
Employee.java
import java.io.Serializable;
public class Employee implements Serializable{
int id;
String firstName, lastName;
Employee(int id, String firstName, String lastName){
this.id = id;
this.firstName = firstName;
this.lastName = lastName;
}
}
$ javac Employee.java
$
$ serialver Employee
Employee: private static final long serialVersionUID = 8478298351518747306L;
You can also specify serialVersionUID of a class by defining the variable serialVersionUID like below.
private static final long serialVersionUID = 1234L;
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This post first appeared on Java Tutorial : Blog To Learn Java Programming, please read the originial post: here
