Java Programming

I' am having this error. Need help, please. thanks

Exception in thread "main" java.io.IOException: Stream closed at java.base/java.io.BufferedReader.ensureOpen(BufferedReader.java:122) at java.base/java.io.BufferedReader.readLine(BufferedReader.java:319) at java.base/java.io.BufferedReader.readLine(BufferedReader.java:392) at CreateWriteReadFile.main(CreateWriteReadFile.java:42)

Here is the instruction

Program 2: Write a program to create a new file titled data.file, if the file does not exist. Then write to the new file, adding 10 randomly generated numbers, or append 10 randomly generated numbers to a previous file. Each integer is to be separated by a space. Close the file, then reopen the file and read the data from the file and display it.

Here is my code

import java.util.*;

import java.io.*;

public class CreateWriteReadFile {

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

try{

//check if file exixsts. If not create file

File file = new File("data.file.txt");

if (file.exists()){

System.out.println("File already exists. ");

}

else {file.createNewFile();

System.out.println("File is created. ");}

//write to file

FileWriter fileWriter = new FileWriter(file);

BufferedWriter bw = new BufferedWriter(fileWriter);

Random random = new Random();

for (int i = 0; i <10; i++ ){

int num = random.nextInt(100);

bw.write(num + " ");

}

bw.write(" ");

bw.close();

fileWriter.close();}

catch(IOException e){

e.printStackTrace();

}

//read from file

try{

File file = new File("data.file.txt");

FileReader fileReader = new FileReader(file);

BufferedReader br = new BufferedReader(fileReader);

String line;

System.out.println("Data from file ");

while ((line = br.readLine()) != null){

System.out.println(line);

br.close();

}

fileReader.close();

}

catch (FileNotFoundException e){

System.out.println("Error" + e);

}

}

}