/*********************************** enter a positive number and see the magic....... please don't enter negative values or decimal point numbers.... if you enter the '-' and '.' signs will be ignored....... bug fixes and suggestions are ever welcome.... by :- Chirag Ghosh ***********************************/ import java.util.*; class numbers { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.print("enter number :"); String x = "222877"; try { x=sc.next(); } catch(Exception e) { System.out.println("IO error. default 222877 used"); } for(int i=0;i4)||(j==1&&i<4)) System.out.print(n); else System.out.print(" "); } System.out.println(); } break; case 6: for(int i=1;i<=7;i++) { for(int j=1;j<=7;j++) { if(i==7||i==1||i==4||j==1||(i>4&&j==7)) System.out.print(n); else System.out.print(" "); } System.out.println(); } break; case 7: for(int i=1;i<=7;i++) { for(int j=1;j<=7;j++) { if(i==1||j==7) System.out.print(n); else System.out.print(" "); } System.out.println(); } break; case 8: for(int i=1;i<=7;i++) { for(int j=1;j<=7;j++) { if(i==7||i==1||i==4||j==1||j==7) System.out.print(n); else System.out.print(" "); } System.out.println(); } break; case 9: for(int i=1;i<=7;i++) { for(int j=1;j<=7;j++) { if(i==7||i==1||i==4||j==7||(i<4&&j==1)) System.out.print(n); else System.out.print(" "); } System.out.println(); } break; case 0: for(int i=1;i<=7;i++) { for(int j=1;j<=7;j++) { if(i==7||i==1||j==7||j==1) System.out.print(n); else System.out.print(" "); } System.out.println(); } break; } } }

magical numbers