此方法用于向txt文件添加单词,然后对它们进行排序,但我不允许在课程中使用Buffered Reader功能。是否有可能使用扫描仪要做到这一点BufferedReader替换
public static void Option1Method() throws IOException
{
FileWriter aFileWriter = new FileWriter("wordlist.txt", true);
PrintWriter out = new PrintWriter(aFileWriter);
String word = JOptionPane.showInputDialog(null, "Enter a word");
out.println(word);
out.close();
aFileWriter.close();
String inputFile = "wordlist.txt";
String outputFile = "wordlist.txt";
FileReader fileReader = new FileReader(inputFile);
BufferedReader bufferedReader = new BufferedReader(fileReader);
String inputLine;
List<String> lineList = new ArrayList<String>();
while ((inputLine = bufferedReader.readLine()) != null) {
lineList.add(inputLine);
}
fileReader.close();
Collections.sort(lineList);
FileWriter fileWriter = new FileWriter(outputFile);
PrintWriter out1 = new PrintWriter(fileWriter);
for (String outputLine : lineList) {
out1.println(outputLine);
}
out1.flush();
out1.close();
fileWriter.close();
}
是的,这是可能的等效代码。你有没有看过['Scanner' JavaDoc](http://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html)? –