How to generate temporary files in a specific directory using Java?

In Java, you can use the java.io.File.createTempFile method to create temporary files, and you can specify a directory to store the temporary file in.

Here is a sample code demonstrating how to generate a temporary file and save it to a specified directory:

import java.io.File;
import java.io.IOException;

public class TempFileExample {
    public static void main(String[] args) {
        try {
            // 指定目录
            String tempDir = "C:/temp/";

            // 使用 createTempFile 方法生成临时文件
            File tempFile = File.createTempFile("temp", ".txt", new File(tempDir));

            // 输出临时文件的路径
            System.out.println("临时文件路径：" + tempFile.getAbsolutePath());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

In the given example, we first specified a directory, C:/temp/, then used the createTempFile method to generate a temporary file with a name starting with temp and a .txt extension. Lastly, we obtained the absolute path of the temporary file using the getAbsolutePath method and then printed it to the console.

Please note that the temporary files generated will be automatically deleted after the program execution.