Newbie, why is my program printing output twice?

hey guys, recently opened a java book and started coding, it was fun

having problem with this password checker that i tried my hand at

it prints output twice

Code :

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import java.util.*;
 
public class SimplePassword {
 
	public static void main(String[] args) {
 
		//variables
		Scanner myScanner = new Scanner(System.in);
		String password = "swordfish";
		String userinput;	
 
		//runs once and then repeatedly while the password check returns false
		do{
			System.out.println("Write password ");
			userinput = myScanner.next();	
			checkPW(password, userinput);
		}while(checkPW(password, userinput) == false);
 
	} //end main
 
	//comparison method
	public static boolean checkPW(String password, String userinput){
 
		if(password.equals(userinput)){
			System.out.println("Access granted");
			return true;
 
		}
		else
		{
			System.out.println("Access denied.");
			return false;
		}
 
	} //end checkPW
}// end class

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example output:

Code :

---

Write password 
monkeys
Access denied.
Access denied.
Write password 
swordfish
Access granted
Access granted

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Can you explain why it does this to me please? :)

How many times are you call the checkPW method in your loop? Twice! Once inside of the loop itself, and once in the while boolean condition. I suggest you call it only once.

Thank you very much! Changed the while to this:

Code :

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while(!userinput.equals(password));

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now it works just fine :3

Great, glad you've got it to work!