import java.io.bufferedinputstream;
import java.io.file;
import java.io.ioexception;
import java.io.inputstream;
import java.io.stringbufferinputstream;
public class inputstream1 {
//inputstream 字节输入流
//reader 字符输入流
public static void main(string[] args) {
// todo auto-generated method stub
string path1="d:/aa";
string path2="d:/aa/cc.java";
file file=new file(path1);
if(!file.exists()){
file.mkdirs();
}
system.out.println("在d盘创建文件夹aa成功");
file file1=new file(path2);
if(!file1.exists()){
try{
file1.createnewfile();
}catch(ioexception e){
e.printstacktrace();
}
}