kodera

here is the error message: Exception in thread "main" java.lang.NullPointerException at DriverClass.DriverExam.questionsMissed(DriverExam.java:48) at Chapter7ALabDemo.main(Chapter7ALabDemo.java:33) program is to read a answer key txt and a student's answers txt, then the number of questions would be entered to correspond with the txt file. and here is my code in two files: [ICODE] …

I am working on an assignment that calls upon a text file to read numbers line by line. If line 1 number is 1, it looks at line 2 number (ex, line 2 = 13), and uses OneNumber class file to do various methods (such as prime or not prime). …

I have a class file with my method to read for prime numbers in my text document, and then my main java file calls on it using the file input code. I am lost in my code, and not sure what is going wrong, because it just reads out 0 …

I am a beginner JAVA coder, and yes this is a homework assignment for a online class... I am stumped, and cannot get help fast enough when it is 11pm at night :<) To better explain, I need to be able to have four methods. My first method contains all …

This will not run, and I am pulling it straight from the how-to.... [code] public class add { public static void main(String[] args) { int sum = add(5, 2); System.out.println("Sum is " + sum); public static int add(int firstInt, int secondInt) { return firstInt + secondInt; } } } [/code]

This is just the beginning of my name sort prog... I am starting with just reading in the names and then outputting each name... As of right now, it is crashing after displaying the first name... I think it's something with my array.. rectangular, instead of square, but don't know …