📄 book2test.java
字号:
package s2Java.sg.ch01.exercise;
class Book2{
private String title;
private int pageNum;
public Book2(String title,int pageNum){
this.title = title;
if(pageNum<200){
System.out.println("页数不能少于200页!");
this.pageNum = 200;
}else
this.pageNum = pageNum;
}
public void detail(){
System.out.println("书名:"+title+",页数:"+pageNum);
}
}
public class Book2Test {
public static void main(String[] args) {
Book2 b = new Book2("Java入门",107);
b.detail();
}
}
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