I/O : File 類別

 
import java.io.File;
import java.util.Scanner;

public class FileTest {
 public static void main(String[] args) {
  String filePath, fileName;
  
  System.out.print("檔案名稱 ？ ");
  Scanner sn = new Scanner(System.in);
  filePath = sn.next();
  File fin = new File(filePath);
  fileName = fin.getName();
  
  if (fin.isFile())
   System.out.println("File exists : " + fileName);
  else if (fin.isDirectory())
   System.out.println("Directory exists : " + fileName);
  else {
   System.out.println("File or Directory Not Found");
   System.exit(0);
  }
 }
}

執行結果

測試有目錄存在時