Spiralpattern

Hi I m going to teach you how to print array elements in spiral order in a double dimensional array.This logic will be helpful in various other programs of this category.
compile the code either by CMD or by other emulator.


Ex-Input
1  2   3    4
5  6   7    8
9 10 11 12
Output-
1 2 3 4 8  12  11 10 9 5 6 7

Code:-

import java.io.*;

class spiral

{

public static void main(String args[])throws IOException

{

BufferedReader in=new BufferedReader(new InputStreamReader(System.in));

int m,n;

m=Integer.parseInt(in.readLine());

        n=Integer.parseInt(in.readLine());

        int mu[][]=new  int[m][n];

int val,row,coln,x,y,z,j,lst;

        for(int i=0;i<m;i++)

        {

for(j=0;j<n;j++)

{    

mu[i][j]=Integer.parseInt(in.readLine());

}

        } 

for(int i=0;i<m;i++)

{

for( j=0;j<n;j++)

{    

System.out.print(+mu[i][j]);

}

System.out.println();

}

for(j=0;j<n;j++)

{

System.out.print("  "+mu[0][j]);

}lst=n-1;

for(x=1;x<m*n;x++)

{    m--;

n--;

for(coln=1;coln<=m;coln++)

{

if(x%2!=0)

lst=lst+10;

else

lst=lst-10;

y=lst%10;

z=lst/10;

System.out.print("  "+mu[z][y]);

}

for(row=1;row<=n;row++)

{

if(x%2!=0)

lst=lst-1;

else

lst=lst+1;

y=lst%10;

z=lst/10;

System.out.print("  "+mu[z][y]);

}

}

}

}