试试这个。。。

String str_yes = "";
String str_no ="";
while (j<count){

  if (b.equals("no")) {  
      no += book[j];                     
   } else { 
   str_yes += book[j];
}
    j++;
   }

tfBIDI.setText(str_no);
tfBIDO.setText(str_yes);

您必须连接book数组的文本数据，并设置 String 作为 TextField 只有一次。现在while循环的每次迭代都会更新 TextFields 文本，因此只能看到上次更新的值

String[] data = {"1", "2", "3", "4"};

        StringBuilder sb = new StringBuilder();
        for (int idx = 0; idx < data.length; idx++) {
            sb.append(data[idx]);
            sb.append(", ");
        }

        String joinedData = sb.toString();
        //or 
        joinedData = Stream.of(data).collect(joining(","));

        textField.setText(joinedData);