Package caracol;

package caracol;

import java.util.Scanner;

public class Caracol {

public static void main(String[] args) {

Scanner u=new Scanner (System.in);

int m;

System.out.println("ssdd");

m=u.nextInt();

int n=m,inicio=0,nlimite=n-1,c=1;

int matriz[][]=new int [n][n];

for (int i=0;i<=n-1;i++){

for (int j=0;j<=n-1;j++){

System.out.println("Introdusca los valores");

matriz[i][j]=u.nextInt();

}

}

while (c<=(n*n)){

for (int i=inicio;i<=nlimite;i++){

matriz[inicio][i]=c++;

}

for (int i=inicio+1;i<=nlimite;i++){

matriz[i][nlimite]=c++;

}

for (int i=nlimite-1;i>=inicio;i--){

matriz[nlimite][i]=c++;

}

for (int i=nlimite-1;i>=inicio+1;i--){

matriz[i][inicio]=c++;

}

inicio=inicio+1;

nlimite=nlimite-1;

}

for (int i=0;i<n;i++){

System.out.println();

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

System.out.print(matriz[i][j]+"\t");

}

}

}

}

...