定义一个Document类,包含成员变量name,从Document派生出Book类,增加PageCount变量。编写主函数 C++习题;谢谢大家帮帮忙 定义一个Document类,包含...
C++\u9898\u76ee\uff1a\u5b9a\u4e49\u4e00\u4e2aDocument\u7c7b\uff0c\u6709name\u6210\u5458\u53d8\u91cf\uff0c\u4eceDocument\u6d3e\u751f\u51faBook\u7c7b\uff0c\u589e\u52a0PageCount\u53d8\u91cf1\u3001\u9996\u5148\u5728C\u8bed\u8a00\u4e2d\uff0cstatic const\u4e0econst static\u4fee\u9970\u53d8\u91cf\u7684\u6548\u679c\u4e00\u6837\u3002
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3\u3001\u7a0b\u5e8f\u7684\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u53ea\u6709\u4e00\u4e2a\u526f\u672c\uff0c\u5982\u4e0b\u56fe\u6240\u793a\u3002
4\u3001\u4e0d\u80fd\u5728\u6784\u9020\u51fd\u6570\u4e2d\u521d\u59cb\u5316\uff0c\u5982\u4e0b\u56fe\u6240\u793a\u3002
5\u3001\u6700\u540e\u57fa\u672c\u7c7b\u578b\u4e2d\u88abstatic const\u4fee\u9970\u7684\u6d6e\u70b9\u578b\u53d8\u91cf\u4e0d\u80fd\u5728\u58f0\u660e\u65f6\u521d\u59cb\u5316\uff0c\u5176\u5b83\u7c7b\u578b\u53ef\u4ee5\uff0c\u5efa\u8bae\u7edf\u4e00\u5728\u7c7b\u4f53\u5916\u521d\u59cb\u5316\uff0c\u907f\u514d\u51fa\u9519\u3002
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class Document{
private String name;
public Document(String name){
this.name = name;
}
public String getName(){
return name;
}
public void setName(String name){
this.name = name;
}
}
class Book extends Document
{
private int PageCount;
public Book(String name,int PageCount){
super (name);
this.PageCount = PageCount;
}
public int getPage(){
return PageCount;
}
public void setPage(){
this.PageCount = PageCount;
}
}
public class Test
{
public static void main(String args[])
{
Book book = new Book("Harry Potter",123);
System.out.println ("Book "+book.getName()+" has "+book.getPage()+" pages.");
}
}
什么语言啊?JAVA?C++?
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