Is there a way to make if with 4 statements? [closed]

Is that possible to make an if with 4 statements? I tried to do that, But for some reason it's getting bugged.

import java.util.Scanner;
public class Main {

    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        String hexa;
        int dec = 0;
        int i = 0;
        
        System.out.println("Please enter a hexa code.");
        hexa = s.nextLine();
        for(i=0; i < hexa.length(); i++) {
            System.out.println("Index " + i);
        if(((int)hexa.charAt(i) >= 48 && ((int)hexa.charAt(i) <= 57)) ||((int)hexa.charAt(i) >= 65 && (int)hexa.charAt(i) <= 70) 
        || ((int)hexa.charAt(i) >= 97 && (int)hexa.charAt(i) <= 102)) 
        {
        dec = Integer.parseInt(hexa, 16);
        }else{
            System.out.println("Error! not a hexa code.");
            break;
            }
        }
        System.out.println("Decimal code is: " + dec);
    }
}