Apu Virtanen

Could someone explain this and tell me what is the right way to clone a multidimensional array:

class test { public static void main(String[] args) { int[][] a = { {0} }; method(a.clone()); System.out.println(a[0][0]); } public static void method(int[][] b) { b[0][0] = -1; } }

Output: -1

How does an applet notice if the browser becomes passive (i.e. it doesn't have the focus in the operating system)?