RuoYi/ruoyi-system/src/main/da.java

public class da {
    public static void main(String[] args) {
        int n = 7;
        if (n >= 0 && n < 10) {
            for (int i = 0; i < n; i++) {
                System.out.println("He" + n + n +"o" + " Wor" + n + "d");
            }
        } else {
            System.out.println("n>10");
        }
    }
}