Compile and Execute Java Online

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

public class myClass {

	public static void main(String [] args) throws IOException {
        Path p = Paths.get("C:\\Users\\KalamLocal\\Desktop\\KT");
        File f = new File (p.toString());
        //System.out.println(f.list().length);
     // int i = f.list().length;
     // File Directory;
	//int noOfFiles = f.list().length;
        for (File file : f.listFiles()){
            int j=1;
             DateFormat dateFormat = new SimpleDateFormat("yyyy-mm-dd hh:mm:ss");
     
  String fileName = new SimpleDateFormat("yyyyMMddHHmm'.txt'").format(new Date());
             File appendfile = new File(fileName);
//System.out.println("new file is created");
  FileWriter fr = new FileWriter(appendfile , true);
  BufferedWriter br = new BufferedWriter(fr);
        	System.out.println("ljlsjflsjljs");
       
        if (file.isDirectory()) {
        	if (file.list().length>0){

        		System.out.println("file is not empty");
        		File[] listOfFiles = file.listFiles();
        		for (int i = 0; i < listOfFiles.length; i++) {
        			System.out.println("File " + listOfFiles[i].getName());
   //System.out.println(listOfFiles[i].length());
   long inkb = listOfFiles[i].length() / 1024;
   long inmb = inkb /1024;
   String size = Long.toString(inmb);
   //System.out.println(inkb);
   //System.out.println(inmb);
 
  // SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
  //System.out.println("after format date is " + sdf.format(listOfFiles[i].lastModified()));
   //String strDate = sdf.format(sdf.format(listOfFiles[i].lastModified()));
   //String dateis = sdf.format(strDate);
  String strDate = dateFormat.format(listOfFiles[i].lastModified());
 
  br.write(String.format("%-20.20s" , listOfFiles[i].getName()));
  br.write("\t");
  br.write(String.format("%-15.15s", strDate));
  br.write("\t");
  br.write("\t");
  br.write(size);
  
  br.newLine();

  
  
  
        		}
        	}
        	else{
        		System.out.println("file is empty");
        		
        	}
        }
        br.newLine();
        br.write(j + "th Folder");
        br.newLine();
        br.newLine();
        br.close();
  fr.close();
        }
        	
	}
}