问题

现有:classPencil{publicvoidwrite(Stringcontent){System.out.println("Write" +cont

现有：classPencil{publicvoidwrite（Stringcontent）{System.out.println（"Write"，+content）{}}classRubberPencilextendsPencil{publicvoidwrite（Stringcontent）{System.out.println（"RubberWrite"+content）；}publicvoiderase（Stringcontent）}}执行下列代码的结果是哪项？（）Pencilpen=newPencil（）；（（RubberPencil）pen）.write（"Hello"）；

A、WriteHello

B、RubberWriteHello

C、编译失败

D、运行时抛出异常

参考答案

您可能感兴趣的试题

此处，Something 类的文件名叫OtherThing.javaclass Something {private static void main（Stri

答案解析
此处，Something 类的文件名叫OtherThing.javaclass Something {private static void main（Stri

答案解析
Operator overloading operator＋= which appends another String instance into current Stri

答案解析
Operator overloading operator＋= which appends another String instance into current Stri

答案解析
A conversion operator which converts the current String instance into raw C－style. stri

答案解析
A conversion operator which converts the current String instance into raw C－style. stri

答案解析

现有:classPencil{publicvoidwrite(Stringcontent){System.out.println(&quot;Write&quot; +cont

现有:classPencil{publicvoidwrite(Stringcontent){System.out.println("Write" +cont