I followed this code and for some reason its showing the error in the image. i cant figure out whats wrong, please help!
Scanner sc = new Scanner(System.in);
ArrayList <Student> students = new ArrayList<Student>();
ArrayList <Student> courses = new ArrayList<Student>();
// Method to read the file contents and stores it in
// instance arrays
void readStudents()
{
// Scanner class object declared
Scanner readStuF = null;
// try block begins
try
{
// Opens the file for reading
readStuF = new Scanner(new File("student.txt"));
// Loops till end of the file to read records
while(readStuF.hasNextLine())
{
String stu = readStuF.nextLine();
String []eachStu = stu.split(" ");
students.add(new Student(eachStu[0], eachStu[1],
eachStu[2], Long.parseLong(eachStu[3]),
Integer.parseInt(eachStu[4]), Integer.parseInt(eachStu[5]),
Integer.parseInt(eachStu[6])));
}// End of while loop
}// End of try block
// Catch block to handle file not found exception
catch(FileNotFoundException fe)
{
System.out.println("\n ERROR: Unable to open the file for reading.");
}// End of catch block
// Close the file
readStuF.close();
}// End of method
I followed this code and for some reason its showing the error in the image. i cant figure out whats wrong, please help!
![<terminated> Client (1) [Java Application] C:\Program Files\Java\jdk-16.0.1\bin\javaw.exe (28 Jul 2021, 8:39:54 pm – 8:39:54 pm)
ERROR: Unable to open the file for reading.
Exception in thread "main" java.lang.NullPointerException: Cannot invoke "java.util.Scanner.close()" because "readStuF" is null
at Client.readStudents (Client.java:182)
at Client.main(Client.java:415)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbceba861-5172-42f7-bf19-945c9a97d1a1%2F8bbddf10-111f-4cce-87b8-94655af87f90%2Fnwobl9_processed.png&w=3840&q=75)
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