String 字符串 转为字符数组

String字符型转为字符数组输出

package com.controller;

import com.alibaba.fastjson.JSON;
import net.sf.json.JSONArray;

/**
 * @author zkkstart
 * @create 2019-01-15 17:44
 */
class Solution {

    public static void main(String[] args){
        String jsonStr="a,b,c";
        final String[] split = jsonStr.split(",");
        JSONArray jsonObject = JSONArray.fromObject(split);
        jsonStr = jsonObject.toString();
        System.out.println(jsonStr);
    }
}

运行结果：[“a”,“b”,“c”]

String str = “Hello World”;
char[] charArray = str.toCharArray();

// 打印字符数组
for (char ch : charArray) {
System.out.print(ch + " ");
}