【单选题】![](https://cos-cdn.shuashuati.com/shuashuati-web/2024-0521-0905-00/logo-new-ad743.png)
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?()
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参考答案:
![](https://cos-cdn.shuashuati.com/shuashuati-web/2024-0521-0905-00/logo-new-ad743.png)
参考解析:
![](https://cos-cdn.shuashuati.com/shuashuati-web/2024-0521-0905-00/logo-new-ad743.png)