class A {
static {
System.out.print("a");
}
public A( ) {
System.out.print("x");
}
}
class B extends A {
static {
System.out.print("b");
}
public B( ) {
System.out.print("y");
}
}
class Test {
public static void main(String[ ] args) {
A ab = new B( );
ab = new B( );
}
}
A、axbyxy
B、abxy
C、abxyabxy
D、abxyxy
D