字符串数组到字符串[重复]

Question

我试图获取任意长度的字符串[]，并将其打印成字符串，最好使用字段分隔符。现在我有：

String[] start = {"first", "second", "third"}; //[] to convert
String cC = "";
String finish = ""; // Final String
String cC1 = "";
{
    for (int i = 0; i < puts.length; i++) {
        cC = puts[i] + ", ";
        cC1 = (finish + cC);
        finish = cC1;
    }
}

但是由于某种原因，它只是返回“第二个”值。我如何使它正确连接这些值？

另外，我可以使用finish=cC来简化代码吗？谢谢

Answer 1

String[] start = {"first", "second", "third"}; //[] to convert
String finish = ""; // Final String
{
    for (int i = 0; i < starts.length; i++) {
        finish = finish + start[i] + ", ";
    }
}

（如果出于某种原因，您想手动执行所有这些操作…）

Answer 2

如果要附加到字符串，应该使用=例如。

String[] start = {"first", "second", "third"};
String cc = "";
String separator = ",";

for (int i = 0; i < start.length; i++) {
    cc += start[i];
    //Not Add , if it is the last element.
    if(i!=start.length-1){
       cc+=separator;
    }
}

等

按照您的方式设置最后一个要完成的值。

Answer 3

String[] start = {"first", "second", "third"};
String addedTogether = Arrays.toString(start);

System.out.println(addedTogether);
//prints [first, second, third]