如何将文件添加到我的文件夹? java

How do I add files to my folder? java

我的程序正在创建文件,我需要将它们放在特定的文件夹中。不确定过程。谢谢

String path = "C:\Users\Blah\Desktop\blahblah\FOLDER";
File bfFolder = new File (path);
bfFolder.mkdir();

for (int a = 0; a < 20; a++) {
    try (DataOutputStream dataO = new DataOutputStream(new FileOutputStream("file" + " a"))) {

您可以将 File 传递给 new FileOutputStream()。要在您创建的目录中创建一个新的 File,请将父目录和文件名传递给构造函数:

// This will refer to C:\Users\Blah\Desktop\blahblah\FOLDER\name.txt
File myFile = new File(bfFolder, "name.txt");
try(FileOutputStream fStream = new FileOutputStream(myFile);
    DataOutputStream data0 = new DataOutputStream(fStream)) {

查看 Files.copy(),这是一种快速完成所需操作的方法。