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问题

Given: What are four 


Given: What are four valid examples of polymorphic method calls?()

  • Ax.a2();
  • Bz.a2();
  • Cz.c1();
  • Dz.a1();
  • Ey.c1();
  • Fx.a1();
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分类:OCJP(310-065)题库
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