Java 字符串数组转字符串

1、方法一:遍历

      String[] arr = { "0asd", "1zxc", "2vf", "3fg", "4zz", "5yy" };
       // 遍历
        StringBuffer str = new StringBuffer();
        for (int i=0; i<arr.length; i++) {
            if (i == arr.length-1) {
                str.append(arr[i]);
            } else {
                str.append(arr[i]);
                str.append(",");
            }
        }     
输出结果:0asd,1zxc,2vf,3fg,4zz,5yy  

 

2、方法二:StringUtils的join方法

  

(1)、输出带 , 的字符串        
String[] arr = { "0asd", "1zxc", "2vf", "3fg", "4zz", "5yy" }; String string = StringUtils.join(arr, ","); System.out.println(string);

输出结果:0asd,1zxc,2vf,3fg,4zz,5yy 

(2)、输出不带 , 的字符串
String[] arr = { "0asd", "1zxc", "2vf", "3fg", "4zz", "5yy" };
String string = StringUtils.join(arr);
System.out.println(string);
输出结果:0asd1zxc2vf3fg4zz5yy

  

 

posted @ 2021-08-02 10:56  唏嘘-  阅读(2075)  评论(0编辑  收藏  举报