trangleProble switch方法 java

 1 public class trangleProblem {
 2
 3     static int res=1;
 4     int codePart=1;
 5     int n=100;
 6     Stack<Param> stack=new Stack<Param>();
 7     public static void main(String[] args) {
 8         trangleProblem tb=new trangleProblem();
 9         while(tb.solve()==false)
10             ;
11     }
12
13     public boolean solve()
14     {
15
16
17         switch(codePart)
18         {
19         case 1:stack.push(new Param(n, 6));
20                 codePart=2;
21                 break;
22         case 2:
23                 if(stack.peek().nn==1)
24                     codePart=5;
25                 else
26                     codePart=3;
27                 break;
28         case 3: stack.push(new Param(stack.peek().nn-1, 4));
29                 codePart=2;
30                 break;
31         case 4:res+=stack.peek().nn;
32                codePart=5;
33                 break;
34         case 5: codePart=stack.peek().returnAddress;
35                 stack.pop();
36                 break;
37         case 6:
38                 return true;
39
40
41         }
42         return false;
43     }
44
45 }
46 class Param
47 {
48     int nn;
49     int returnAddress;
50      Param(int nn,int returnAddress)
51     {
52         this.nn=nn;
53         this.returnAddress=returnAddress;
54     }
55 }