import java.io.*;
import java.util.*;
class del
{

	private String stru,strf;
	BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
	public void calc()throws IOException
	{
		System.out.println("enter record to be deleted");
		stru=br.readLine();

		BufferedReader in=new BufferedReader(new FileReader("adbk.txt"));

		File fi=new File("tadbk.txt");

		PrintWriter p=new PrintWriter(new FileWriter("tadbk.txt",true));

		while((strf=in.readLine())!=null)
		{
			if(stru==strf)
			{
				continue;
			}
			else
			{
				p.println(strf);
			}
		}
		p.close();
		fi.renameTo("adbk.txt");//gives error here
		fi.delete();
	}
}