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问题

publicclassPet{privateStringname;publicPet(){System.out.print(1);}publicPet(Stringname){Sy


publicclassPet{privateStringname;publicPet(){System.out.print(1);}publicPet(Stringname){System.out.print(2);}}publicclassDogextendsPet{publicDog(){System.out.print(4);}publicDog(Stringname){super(name);System.out.print(3);}}执行newDog(棕熊”);后程序输出是哪项?()

A.33

B.13

C.23

D.123

参考答案
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