面向对象+JAVA基础

泛泛的研究了面向对象的前五章，感觉没有代码的参照理解的知识看过就忘，所以又在推荐下开始了JAVA基础，希望不会鄙视我目前么有一本书能完整看完的记录。。。

 1 public class LeapYear
 2 {
 3     public static void main (String args[])
 4     {
 5         //第一种方式
 6         int year = 1989;
 7         if((year % 4 == 0&&year % 100 != 0)||(year % 400 == 0))
 8         {
 9             System.out.println(year + " "  + "is a leap year.");
10         }
11         else
12         {
13             System.out.println(year + " "  + "is not a leap year.");
14         }
15         //第二种方式
16         year = 2000;
17         boolean leap;
18         if (year % 4 != 0)
19         {
20             leap = false;
21         }
22         else if (year % 100 != 0)
23         {
24             leap = true;
25         }
26         else if (year % 400 !=0)
27         {
28             leap = false;
29         }else
30         {
31             leap = true;
32         }
33         if (leap == true)
34         {
35             System.out.println(year+ " "  + "is a leap year.");
36         }
37         else
38         {
39             System.out.println(year+ " "  + "is not a leap year");
40         }
41     }
42 }

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