单选题现有:      class Pencil  {  public void write (String content){     System.out.println( "Write",+content){     }     }class RubberPencil extends Pencil{     public void write (String content){  System.out.println("Rubber Write"+content);     }  public void erase (String content)}}  执行下列代码的结果是哪项?()      Pencil  pen=new  Pencil();  (( RubberPencil) pen).write( "Hello");AWrite HelloBRubber Write HelloC编译失败D运行时抛出异常

单选题
现有:      class Pencil  {  public void write (String content){     System.out.println( "Write",+content){     }     }class RubberPencil extends Pencil{     public void write (String content){  System.out.println("Rubber Write"+content);     }  public void erase (String content)}}  执行下列代码的结果是哪项?()      Pencil  pen=new  Pencil();  (( RubberPencil) pen).write( "Hello");
A

Write Hello

B

Rubber Write Hello

C

编译失败

D

运行时抛出异常


参考解析

解析: 暂无解析

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