Wur task hefe sto implement Java code based on the follcwing ecificaticans. Note that your code shoold matid the specifications in phectoo indritur. Conisider default visibility of dassesi. dota fieids. Ad niethodis undess mentionad.

pecifications

class definitions:

class Rondata entbers:

String nare,

int columns

Int key

class Table:

dita noaber:

nethod definition:

Inserthon $($int $1$d$,$ fow row$)$

retarn types String

visibility putilic

deletenlow$($String reallane, int id$)$

return typei string

violbilityl publis