Question

我有一个如下所示的String列表，我想用用百里香分隔的逗号（，）将其转换为String。

List<String> scopeList = Arrays.asList("settings","locations","accounts","notifications");

我想这样简单地获取输出：

 settings,locations,accounts,notifications

Answer 1

尝试一下

ArrayList<String> list = new ArrayList<>();
        list.add("Java");
        list.add("Spring");
        list.add("Javascript");

        StringJoiner sj = new StringJoiner(",");
        list.forEach(sj::add);
        System.out.println(sj);

输出：Java，Spring，Javascript

Answer 2

已通过CompileJava

选中

//*******************************************************************
// Welcome to CompileJava!
// If you experience any issues, please contact us ('More Info')  -->
//*******************************************************************

import java.util.*;
import java.util.stream.*;

// one class needs to have a main() method
public class HelloWorld
{
  // arguments are passed using the text field below this editor
  public static void main(String[] args)
  {
    List<String> scopeList = Arrays.asList("settings","locations","accounts","notifications");
    System.out.print(scopeList.stream().collect(Collectors.joining(",")));
  }
}

输出：

设置，位置，帐户，通知

Answer 3

您可以尝试一下。

List<string> scopeList= new List<string>() { 
"settings","locations","accounts","notifications" };  
var result = String.Join(",", scopeList);

Answer 4

您可以使用此：

import org.apache.commons.lang3.StringUtils;
String result = StringUtils.join(scopeList, ",");

此外，在Java 8中，您可以使用 String.join ：

String result = String.join(",", scopeList);

Answer 5

尝试一下：

Day([DATE])<Day(DateTimeNow())-1

如何将List <String>转换为以逗号（，）分隔的字符串

5 个答案: