B A A/sfa100 A/sfa100 class B extends Af static int sfb=100 A/sfb1000 A/sfb 1000 int fb=10 B/sfb100 Sna void ma(i.3 Sma . B A A ral=new AO; ra Brbl=new B0; A/fa10 0 ral=rb1 A/fbl100 fb100 rbI B/b10 ma maclass B extends A{ static int sfb=100; int fb=10; void ma(){…} } A ra1=new A(); B rb1=new B(); ra1=rb1; B A/sfb sma 1000 …… …… A/sfa 100 B/sfb 100 A A/sfb sma 1000 …… …… A/sfa 100 :B A/fb ma 100 …… …… A/fa 10 B/fb 10 :A fb ma 100 …… …… fa 10 ra1 rb1