Driver Code
public static void Main ( string [ ] args ) { GFG obj = new GFG ( ) ; string input = " geekforgeeks " ; if ( obj . uniqueCharacters ( input ) ) { Console . WriteLine ( " The ▁ String ▁ " + input + " ▁ has ▁ all ▁ unique ▁ characters " ) ; } else { Console . WriteLine ( " The ▁ String ▁ " + input + " ▁ has ▁ duplicate ▁ characters " ) ; } } }