Program for Creating 100 Random Files in JAVA

import java.io.*;

import java.util.Random;

public class myfile 

{

public static void main(String[] args) throws IOException 

{

int count=1;

while(count<=100)

{

Random r=new Random();

int myrannum=r.nextInt(10000);

File f=new File("c:/raj/file"+myrannum+".txt");

if(!f.exists())

{

f.createNewFile();

FileWriter fw = new FileWriter(f);

BufferedWriter out = new BufferedWriter(fw);

out.write("Hai How are you ?");

out.close();

System.out.println("File Path       : "+f.getPath());

System.out.println("Total Disk size : "+(((f.getTotalSpace()/1024)/1024)/1024)+" GB");

count++;

}

else

{

System.out.println("File"+myrannum+".txt is already exist");

}

}

}

}

Output:

File Path          : c:\raj\file4851.txt

Total Disk size : 232 GB

File Path          : c:\raj\file4164.txt

Total Disk size : 232 GB

File Path          : c:\raj\file8551.txt

Total Disk size : 232 GB