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题目内容
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classTestA{publicvoidstart(){System.out.println(”TestA”);}}publicclassTestBextendsTestA{publicvoidstart(){System.out.println(”TestB”);}publicstaticvoidmain(String[]args){((TestA)newTestB()).start();}}Whatistheresult?()
A.TestA
B.TestB
C.Compilationfails.
D.Anexceptionisthrownatruntime.
参考答案
更多 “ classTestA{publicvoidstart(){System.out.println(”TestA”);}}publicclassTestBextendsTestA{publicvoidstart(){System.out.println(”TestB”);}publicstaticvoidmain(String[]args){((TestA)newTestB()).start();}}Whatistheresult?()A.TestAB.TestBC.Compilationfails.D.Anexceptionisthrownatruntime. ” 相关考题
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