Help required on deleting temporary files through program

Question

I could able to create, write and read from a temporary file. But I am unable to delete it. Can anyone help me to fix this. Here is the code.
Thanks in advance.
import java.io.*;
public class Test {
   File file1 = new File("C:\\temp");
   public static void main(String[] args)throws Exception {
       Test t = new Test();
        t.createTempFiles();
        t.read();
        t.delete();
    public void createTempFiles(){
        try{
            File temp = File .createTempFile( "TempFileName", ".tmp", new File ( "C:\\temp" ) );
            BufferedWriter bufferWriter = new BufferedWriter(new FileWriter(temp));
            bufferWriter.write("Temporary File");
            bufferWriter.close();
         catch(Exception exp){
            exp.printStackTrace();
   public void read()throws Exception{
       File file[] = file1.listFiles();
        for(File obj: file){
        BufferedReader reader = new BufferedReader(new FileReader(obj);
        System.out.println(reader.readLine());
   public void delete(){
      File file[] = file1.listFiles();
      for(File fl : file){
         System.out.println(fl.delete());
}

Answer 1

I think you are unable to delete because you never close the reader, so the operating system reports the file is still in use.