driver program
public static void main ( String [ ] args ) { int x = 5 ; if ( isLucky ( x ) ) System . out . println ( x + " ▁ is ▁ a ▁ lucky ▁ no . " ) ; else System . out . println ( x + " ▁ is ▁ not ▁ a ▁ lucky ▁ no . " ) ; } }