Java 在指定目录创建文件

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

public class CreateFile {
    public static void main(String[] args) throws IOException {
        File file = null;
        File dir = new File("/home/huanyu/Documents");
        file = File.createTempFile("java",".txt",dir);
        System.out.println(file.getPath());
    }
}