java数组翻转

 

public class _03arrayPratice {
    
    public static String join(String[] hero){
        String str = "[";
        int heroLength = hero.length;
        
        for(int i = 0; i < heroLength -1 ; i++) {
            str += '"'+ hero[i]+'"'+",";
        }
        str += '"'+ hero[heroLength - 1]+'"'+"]";
    
        return str;
    }
    
    public static void main(String[] args) {
        String[] hero = {"王翦","白起","廉颇","李牧"};
//        need: ["王翦","白起","廉颇","李牧"]
        
        String result = join(hero);
        
        System.out.println(result);
    }
}