public class Main {

    public static void main(String[] args) {
        int y = 3;
        foo(y);
        System.out.println(y);

        int[] tbl = new int[2];
        tbl[0] = 1;
        tbl[1] = 1;
        tblFooFirst(tbl);
        System.out.println(tbl[0]);
        System.out.println(tbl[1]);
        tblFooSecond(tbl);
        System.out.println(tbl[0]);
        System.out.println(tbl[1]);
    }

    static void foo(int x){
        x = 5;
        System.out.println(x);
    }

    static void tblFooFirst(int[] tbl){
        tbl = new int[2];
        tbl[0] = 5;
        tbl[1] = 5;
    }
    static void tblFooSecond(int[] tbl){
        tbl[0] = 10;
        tbl[1] = 10;
    }
}