涓涓狫AVA棰樼洰
璁捐涓涓狫AVA紼嬪簭錛屾墦鍗癗闃惰灪鏃嬬煩闃碉細(xì)褰揘=3鏃訛紝鍒?br />
1 2 3
8 9 4
7 6 5
1
public class Ring
2

{
3
public static int getNum(int n,int i,int j)
4
{
5
if(i==0) return j+1;
6
else if(i==n-1)
7
return 3*n-j-2;
8
else if(j==0)
9
return 4*n-i-3;
10
else if(j==n-1)
11
return n+i;
12
else
13
return 4*(n-1)+getNum(n-2,i-1,j-1);
14
}
15
public static void print(int n)
16
{
17
for(int i=0;i<n;i++)
18
{
19
for(int j=0;j<n;j++)
20
System.out.printf("%7d",getNum(n,i,j));
21
System.out.println();
22
}
23
}
24
public static void main(String[] args)
25
{
26
Scanner scan =new Scanner(System.in);
27
while(true)
28
{
29
System.out.println("input a integer(0 to exit):");
30
int n =scan.nextInt();
31
if(n<=0) break;
32
print(n);
33
}
34
}
35
}
1 import java.io.*;
2
3 public class RingDemo{
4
5 public void setArray(int n){
6
7 System.out.println("榪欐槸"+n+"涓灪綰垮瀷鏁扮粍:");
8
9 int intA=1;//鍒濆鍖?/span>
10 int[][] array=new int[n][n];
11
12 int intB;
13
14 if(n%2!=0){
15 intB = n/2+1;//濂囨暟鏃秈寰幆嬈℃暟
16 }
17 else
18 intB = n/2;//鍋舵暟鏃秈寰幆嬈℃暟
19
20 for(int i = 0;i < intB; i++){//浠庡鍒伴噷寰幆
21 //浠庡乏鍒板彸妯殑寮濮?/span>
22 for(int j=i;j < n-i; j++){
23 array[i][j] = intA;
24 intA++;
25 }
26 //浠庝笂鍒頒笅綰?/span>
27 for(int k=i+1;k < n-i; k++){
28 array[k][n-i-1] = intA;
29 intA++;
30 }
31 //浠庡彸鍒板乏妯?/span>
32 for(int l=n-i-2;l >= i ;l--){
33 array[n-i-1][l] = intA;
34 intA++;
35 }
36 //浠庝笅鍒頒笂綰?/span>
37 for(int m=n-i-2; m > i ; m--){
38 array[m][i]=intA;
39 intA++;
40 }
41 }
42 //杈撳嚭鏁扮粍
43 for(int i = 0; i < n; i++){
44 for(int j = 0; j < n; j++){
45 System.out.print(array[i][j] + " ");
46 }
47 System.out.println();
48 }
49 }
50
51 public static void main(String[] args){
52 String strIn = "";
53 System.out.print("please enter a number:");
54 InputStreamReader input = new InputStreamReader(System.in);
55 BufferedReader buff=new BufferedReader(input);
56 try{
57 strIn=buff.readLine();
58 }
59 catch(IOException e){
60 System.out.println(e.toString());
61 }
62
63 int int1 = Integer.parseInt(strIn);
64 RingDemo ring = new RingDemo();
65 ring.setArray(int1);
66 }
67 }

]]>