// 23.ck : inheritance

// declare class X
class X
{
    int i;
}

// declare class Y as subclass of X
class Y extends X
{
    int j;
}

// instantiate a Y
Y y;

// assign to i
10 => y.i;

// test
if( y.i == 10 && y.j != 0 ) <<<"test failed">>>;
else <<<"success">>>;