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In Java; Set hasDigit to true if the 3-character passCode contains a digit. If you could tell me why the code I wrote isn’t working I’d be thankful.
import java.util.Scanner;
public class CheckingPasscodes {
public static void main (String [] args) {
Scanner scnr = new Scanner(System.in);
boolean hasDigit;
String passCode;
hasDigit = false;
passCode = scnr.next();
let0 = userInput.charAt(0);
let1 = userInput.charAt(1);
let2 = userInput.charAt(2);
if ((Character.isDigit(let0) || Character.isDigit(let1) || Character.isDigit(let2)){
hasDigit = true;
}
if (hasDigit) {
System.out.println(“Has a digit.”);
}
else {
System.out.println(“Has no digit.”);
}
}
}
Answer
import java.util.Scanner;
public class CheckingPasscodes {
public static void main (String [] args) {
Scanner scnr = new Scanner(System.in);
boolean hasDigit;
String passCode;
hasDigit = false;
passCode = scnr.next();
// the string is passCode and not userInput
// also you didn’t declare let0, let1, let2
int let0 = passCode.charAt(0);
int let1 = passCode.charAt(1);
int let2 = passCode.charAt(2);
if ((Character.isDigit(let0) || Character.isDigit(let1) || Character.isDigit(let2))){
hasDigit = true;
}
if (hasDigit) {
System.out.println(“Has a digit.”);
}
else {
System.out.println(“Has no digit.”);
}
}
}
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