有没有办法从 return 语句打印 toString 而不覆盖 toString 方法？

Question

Is there a smart and quick way for me to output the string "h" in this code. I'm curious to see if there is some kind of function that can quickly convert the return statement return h.toString(); to an actual output for me.

import java.util.ArrayList;

public class Ex1 {
    public static void main(String[] args) {

        a("4 5 1 34 123 1 5 8");

    }
    public static String a(String b) {
        ArrayList<String> c = new ArrayList<>();
        String[] d = b.split (" ");
        int e = 0;
        if(d != null && d.length > 0) {
            for(; e < d.length ; e = e + 1) {
                c.add(0, d[e]);
            }
        }

        Object[] f = c.toArray();
        String[] g = new String[e];
        for(e = 0; e < f.length ; e=e+1) {
            g[e] = f[e].toString();
        }
        String h = "";
        for(String i : g) {
            h = h.toString() + " " + i.toString();
        }
    return h.toString();
    }
}

Answer 1

If you don't mind the json format, Simply use any json lib will do this quick, I believe every json lib has a way to turn a object to json string

like

System.out.println(JSONArray.fromObject(myArray).toString());