Check if string has all the letters of the alphabet

Question

What would be the best logic to check all the letters in a given string.

If all the 26 letters are available in the provided string, I want to check that and perform

Answer 1

Try this one out it's easy and simple to understand

import java.util.*;

public class Pnagram{
    public static void main(String[] args){
        Scanner sc=new Scanner(System.in);
        String Str=sc.nextLine();
        Set set = new HashSet();

        for(char c:Str.toUpperCase().toCharArray()){
            if(Character.isLetter(c))
            set.add(c);
        }
        if(set.size()==26)
            System.out.println("pnagram");
        else
            System.out.println("not pnagram");
    }
}