จาวา arraylist ต้องข้อความ

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arraylist ข้อความต้องข้อความตารางคู่ลำดับ

String[] arr = list.toArray(new String[list.size()]);
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จาวา arraylist ต้องข้อความ

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" 
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ข้อความอาเรย์ต้อง 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
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จาวาข้อความอาเรย์ต้อง arraylist

new ArrayList( Arrays.asList( new String[]{"abc", "def"} ) );
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arraylist รายการในข้อความ

String listString = String.join(", ", list); //Java 8 or later
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รายชื่อของข้อความต้องข้อความอาเรย์ในของจาวา

list.toArray(new String[0]);

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