Question on functions etc.

Question

Say for instance I declared in a function called Function1 an array e.g. int [] sumarr = new int [4];
Then I filled the array with values.
How can I use this array(with contents) in another function, say function2. How do I call it in main if it hasn't been declared in main?
Thanks.

Answer 1

You can return it.
public class Test {
public int[] Function1() {
    int[] sumarr = new int[4];
    for (int i = 0; i < 4; ++i) sumarr[i] = i;
    return sumarr;
public void Function2() {
    int[] s = Function1();
    int sum = 0;
    for (int i = 0; i < s.length; ++i)
       sum += s;
public static void main(String[] args) {
Test t = new Test();
int[] q = t.Function1();
t.Function2();