Seeburger variable?

Hey Experts,

I need to create a Seeburger variable and if a given condition is met, increase it and save it again with that new value (and so on), if not leave it like it was loaded initially with any change

for example, i have created a Seeburger variable called "CounterVar"

CounterVar at first try will be 0

Could anyone provide a example java code to do that? (I do know about Seeburger variables but I really don't understand much of Java code to do that)

Thanks!