Thread: do while syntax error problem

im having trouble figuring out why its giving me a syntax error

package DamageCalc;
 
import java.util.Scanner;
 
public class DmgCalc {
	public static void main (String[] args) {
 
		int attack,element;
		boolean retry;
		boolean yes = true;
		String weak = "Your Damage against your weak element is ";
 
		Scanner input = new Scanner(System.in);
		do {
		System.out.println("Enter your Attack");
		attack = input.nextInt();
 
		System.out.println("What is your Element? (Use 1-4) 1-Fire 2-Water 3-Earth 4-Wind");
		element = input.nextInt();
 
		if(attack == 0) {
			System.out.println("Your damage is 0.");
		}else{
		switch(element) {
		case 1:
			attack =(int)((attack * 1.4 + 0 - 2 * 0.98) * 1.6);
			System.out.println(weak + attack);
		    break;
		case 2:
			attack =(int)((attack * 1.4 + 0 - 2 * 0.98) * 1.3);
			System.out.println(weak + attack);
		    break;
		case 3:
			attack =(int)((attack * 1.4 + 0 - 2 * 0.98) * 1.4);
			System.out.println(weak + attack);
		    break;
		case 4:
			element =(int)((attack * 1.4 + 0 - 2 * 0.98) * 1.3);
			System.out.println(weak + attack);
		    break;
		 default:
		    	System.out.println("Exiting...Please follow directions.");
		    	break;
		    }
		System.out.println("Would you like to try another calculation?");
		      retry = input.nextBoolean();
		} while (retry = yes);
	} 
}
}

and the error i get is

Exception in thread "main" java.lang.Error: Unresolved compilation problem:
Syntax error, insert "while ( Expression ) ;" to complete DoStatement

at DamageCalc.DmgCalc.main(DmgCalc.java:47)


i dont understand because on the line above it i have the while ()
the part im trying to add is the do while loop the rest of the code without it works nice i tried to set retry as string boolean int lol
im really not sure if im doing this right though im all confused right now lol any help would be great

You are still using assignment and not comparison. Besides when using booleans you do not need to compare.

boolean tt = true;
boolean ff = false;
if(tt)  // when true
 
if( ! ff) //when false

Another thing, I wouldn't be using nextBoolean. That relies on the user typing "true" or "false". Whereas it is more usual to enter "yes" or "no". This also allows more flexibility as you can do an equalsIgnoreCase for "YES', "Yes" etc.

thank you guys very much i dont know what i was thinking lol next time i don't try to mess with it while i am falling asleep haha...i need to learn more about scanner stuff and boolean

i appreciate all the help