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java - 在 Java 中使用 BufferedWriter 写入文件

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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,然后创建并写入一个包含统计信息的新文件。除了写入文件外,我程序中的所有内容都有效,我不明白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 );
}
}

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