合并字母以形成字符串并与现有字符串进行比较？我是Java的新手，如何编写逻辑？

请尝试以下代码。

public class Test {
    public static void main(String[] args) {
        String finalString = "";
        Scanner sc = new Scanner(System.in);
        for (int i = 1; i < 5; i++) {
            System.out.println("Enter " + i + "letter");
            String letter = sc.nextLine();
            finalString = finalString + letter;
        }

        if (!finalString.equals("JAVA")) {// you can test it with any string by replacing java
            System.out.println("Wrong spelling");
        } else {
            System.out.println(finalString);
        }
    }
}

回答来源：Stack Overflow