java garbage collecting in dialog

Question

*I\'m now encountering a very strange java GC problem when I trying to make a button in a JFrame, and when I click the button, it display a JDialog which need to deal with and s

Answer 1

You're allocating new int[40000000] before while tmp still holds the reference to the last int[40000000].
The order of operation in an expression like tmp = new int[40000] is:

1. new int[40000]
2. Assign the reference to the array to tmp

So in 1. tmp is still holding the reference to it's last value.

Try doing:

tmp = null;
tmp = new int[40000000];