To "freeze" a number passed to a list
I want to make an applet with a record of the problems put to the user. I have made a nested list lstHistory to store these values (say, three values a, b, c stored in a lower-level list lstElement). The lstHistory is fed with a button.
Could I get the new row in lstHistory "frozen", i.e., independent of the a, b, c values? (now, when I change the a, b, or c values, the lstHistory is changed: my record doesn't work.)