在java中读取文件时删除的内容

import java.io.*;

public class FileContentDeletion {
    public static void main(String[] args) {
        String filePath = "path/to/file.txt"; // 文件路径

        try {
            File file = new File(filePath);
            FileReader fileReader = new FileReader(file);
            BufferedReader bufferedReader = new BufferedReader(fileReader);

            StringBuilder stringBuilder = new StringBuilder();
            String line;

            while ((line = bufferedReader.readLine()) != null) {
                // 判断是否包含需要删除的内容
                if (!line.contains("要删除的内容")) {
                    stringBuilder.append(line);
                    stringBuilder.append(System.lineSeparator()); // 添加换行符
                }
            }

            bufferedReader.close();

            // 将修改后的内容写入文件
            FileWriter fileWriter = new FileWriter(file);
            BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
            bufferedWriter.write(stringBuilder.toString());
            bufferedWriter.close();

            System.out.println("文件内容删除成功！");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}