问答题

importjava.io.*;publicclassabc{publicstaticvoidmain(Stringargs[]){System.out.println("a="+a+"b="+b);}}classSubClassextendsSuperClass{intc;SubClass(intaa,intbb,intcc){super(aa,bb);c=cc;}}classSubSubClassextendsSubClass{inta;SubSubClass(intaa,intbb,intcc)

答案: 运行结果: a=60 b=20 c=30
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