Why can't exit the loop?

Question

Java

Hello, why can't you exit the loop when you enter, stringand if you replace it with int- does everything work?

DOES NOT WORK:

public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        boolean isNotEnough = true;

        do {
            System.out.println("Please enter the question:");
            String question = sc.nextLine();
            if(question=="out"){
                isNotEnough=false;
            }
        }
        while(isNotEnough);
        System.out.println("Thanks");
    }

WORKS:

public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        boolean isNotEnough = true;

        do {
            System.out.println("Please enter the question:");
            int question = sc.nextInt();
            if (question==1){
                isNotEnough=false;
            }
        }
        while(isNotEnough);

        System.out.println("Thanks");

    }

Answer 1

Because someone didn't read about string comparison in Java .