使用Java中的BufferedWriter写入文件

Question

我正在做一个实验，我们必须读取一个外部文件，对数据进行一些统计，然后使用统计信息创建和写入新文件。除了编写文件，程序中的所有内容都可以正常工作，我无法理解为什么我的方法不起作用。

BufferedWriter writer;

public void writeStats(int word, int numSent, int shortest, int longest, int average)
{
    try
    {
        File file = new File("jefferson_stats.txt");
        file.createNewFile();

        writer = new BufferedWriter(new FileWriter(file));

        writer.write("Number of words: " + word );
        writer.newLine();
        writer.write("Number of sentences: " + numSent );
        writer.newLine();
        writer.write("Shortest sentence: " + shortest + " words");
        writer.newLine();
        writer.write("Longest sentence: " + longest + " words");
        writer.newLine();
        writer.write("Average sentence: " + average + " words");    
    }
    catch(FileNotFoundException e)
    {
        System.out.println("File Not Found");
        System.exit( 1 );
    }
    catch(IOException e)
    {
        System.out.println("something messed up");
        System.exit( 1 );
    }
}

Answer 1

您必须冲洗并关闭编写器：

writer.flush();
writer.close();