Java arraylist转string

代码示例

1
0

arraylist字符串到字符串数组

String[] arr = list.toArray(new String[list.size()]);
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java arraylist转string

ArrayList<String> al = new ArrayList<String>();
      al.add("Hello");
      al.add("Wor");
      al.add("ld");
      StringBuffer sb = new StringBuffer();
      
      for (String s : al) {
         sb.append(s);
         sb.append(" ");
      }
      String str = sb.toString();
      System.out.println(str);//"Hello wor ld" 
0
0

字符串数组到arraylist

String [] strings = new String [] {"1", "2" };
List<String> stringList = new ArrayList<String>(Arrays.asList(strings)); //new ArrayList is only needed if you absolutely need an ArrayList
0
0

java字符串数组转arraylist

new ArrayList( Arrays.asList( new String[]{"abc", "def"} ) );
-1
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arraylist项转换为字符串

String listString = String.join(", ", list); //Java 8 or later
-1
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java中字符串到字符串数组的列表

list.toArray(new String[0]);

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