I am writing a code that checks password entries. The main method checks a secondary method and outputs a line depending on whether it's true or false. My problem is when I compile it gives expected class error for the second method, but if I try to use the same class as my main it gives duplicate class error. I didn't think I needed a second class. Anyone care to help me out?
import java.util.Scanner;
public class CheckPassword {
public static void main(String[] args) {
scanner input = new Scanner(System.in);
System.out.println("Enter a password");
password = input.nextLine();
if (check(password)) {
System.out.println("Valid Password");
}
else{
System.out.println("Invalid Password");
}
}
}
public class CheckPassword {
public static boolean check(String password) {
boolean check = true;
if(password.length() < 8) {
check = false;
}
int num = 0;
for(int x = 0; x < password.length(); x++) {
if(isLetter(password.charAt(x)) || isDigit(password.charAt(x))){
if(isDigit(password.charAt(x))){
num++;
if (num >=2){
check = true;
}
else{
check = false;
}
}
}
}
}
}
No need another class, but needed to static import isDigit and isLetter. I fixed your code:
import java.util.Scanner;
import static java.lang.Character.isDigit;
import static java.lang.Character.isLetter;
public class CheckPassword {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("Enter a password");
String password = input.nextLine();
if (check(password)) {
System.out.println("Valid Password");
}
else{
System.out.println("Invalid Password");
}
}
public static boolean check(String password) {
boolean check = true;
if(password.length() < 8) {
check = false;
}
int num = 0;
for(int x = 0; x < password.length(); x++) {
if(isLetter(password.charAt(x)) || isDigit(password.charAt(x))){
if(isDigit(password.charAt(x))){
num++;
if (num >=2){
check = true;
}
else{
check = false;
}
}
}
}
return check;
}
}
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