Answer 1

the static keyword can be used on a variable or a function and they declared/initialized once but you can access it multiple times ( this is how in c++, I believe same in Java ).
while(true){
static int x = 5; // declare variable once
// won't declare it over and over again in the loop
x++; // adding 1 to x
}
outputs:
5 6 7 8 9 10 and goes on.