The following answers are quoted from GPT-3 model, please use them wisely:
示例
可以使用Java的File类来检测文件夹是否存在,如果不存在则新建一个文件夹:
// 定义文件夹路径
String folderPath = "PATH_TO_FOLDER";
// 创建文件夹对象
File folder = new File(folderPath);
// 判断文件夹是否存在,如果不存在则创建一个新文件夹
if (!folder.exists()) {
folder.mkdirs();
}
// 创建txt文件
String filePath = folderPath + "/file.txt";
File file = new File(filePath);
// 向文件写入内容
try {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
// 写入文件
bw.write("The content goes here");
bw.close();
fw.close();
} catch (IOException e) {
e.printStackTrace();
}
Please accept my answer if it answers your question