Tanathip Viriya wrote:I don't understand question too but from
private static final long serialVersionUID = 1L;
this is a default value of serialVersionUID.
Actually, the default value is calculated automatically. Just try it - create a class without a serialVersionUID field, then run the "serialver" tool with the class name (e.g. serialver
Test).
Most
IDE's choose to add 1L as the default value but I prefer to let my Eclipse generate it (most likely using serialver).