JAVA Book類

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電梯直達

樓主

ID:408941 發表于 2018-10-13 11:29 | 只看該作者回帖獎勵

|倒序瀏覽 |閱讀模式

package 實訓3;

public class BookTest {
      public static void main(String[] args){
               Book book=new Book();
               book.setTitle("java程序");
               book.setPageNum(300);
               System.out.println(book.detail());
      }
}
class Book{
private String title;
private int pageNum;
public String getTitle() {
      return title;
}
public void setTitle(String title) {
      this.title = title;
}
public int getPageNum() {
      return pageNum;
}
public void setPageNum(int pageNum) {
      if(pageNum<200){
                  System.out.println("你輸入的頁數錯誤");
                  this.pageNum=200;
         }else{
               this.pageNum = pageNum;
         }
      }
public String detail(){
         return "每本教材名稱為"+title+"頁數為"+pageNum;
}
}

Java