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package zuoye;
public class Book {
public static void main(String[] args) {
book1 book=new book1();
book.setTitle("java");
book.setPageNum(210);
System.out.println(book.detall());
}
}
class book1 {
private String title;
private int pageNum;
public int getPageNum() {
return pageNum;
}
public void setPageNum(int pageNum) {
if(pageNum<200) {
System.out.println("頁數(shù)不能少于200頁！");
this.pageNum=pageNum;
}else
this.pageNum=pageNum;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title=title;
}
String detall() {
return "書名："+title+",頁數(shù)："+pageNum;
}
}
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