public class AmericanFlag {$\{$

public static void main($($String[]$[]$ args){$)\{$

for($($int i =1$=1$;i<=15$<=15$;i++){$++)\{$

for($($int j =1$=1$;j<=46$<=46$;j++){$++)\{$

if($($i<=9$<=9$ && j<=12){$<=12)\{$

if($($j%2==0){$\%2==0)\{$

System.out.print("")$("")$;

}$\}$

else {$\{$

System.out.print("*")$("*")$;

}$\}$

}$\}$

else{$\{$

System.out.print("=")$("=")$;

}$\}$

}$\}$

System.out.println()$()$;

}$\}$

}$\}$

}$\}$ explain this program