Comments by John Bob 2021

John Bob 2021 25-Sep-22 1:11am View

yes, it should be done like that, but im a little bit confused on how to go about doing it, can you draw a short flow chat or pseudo code as example?

John Bob 2021 24-Sep-22 23:09pm View

well the assignment question says, Read this data in your Java program by creating a Book class and storing it into a linked list and array list separately. Now do the following:
1. Using polymorphism technique with list data structure as the super class wherever applicable, create the following sorting algorithms:
a. Insertion Sort with a linked list and array list.
b. Exchange sort or Bubble sort with a linked list and array list

John Bob 2021 22-Sep-22 4:00am View

thank you, the first issue has been resolved, however there's another issue that came up from inside the insertionSort "For loop" and another error is at the main class when calling the insertion sort function. Exception in thread "main" java.lang.ClassCastException: class books.BookList cannot be cast to class java.lang.String (books.BookList is in unnamed module of loader 'app'; java.lang.String is in module java.base of loader 'bootstrap')

John Bob 2021 21-Sep-22 22:51pm View

Error says non static variable cannot be referenced from a static context, the error is at main function, the line where it's calling the insertion sort function

John Bob 2021 21-Sep-22 22:48pm View

The question asked me to read a CSV file into a array list and then sort the file. The error occurs at the main function while calling the insertion sort function, it says non static variable cannot be referenced from a static context

John Bob 2021 21-Sep-22 22:44pm View

The error says non static variable cannot be referenced from a static context

John Bob 2021 25-Nov-21 2:18am View

Deleted

the actual results from printusers function gave me only half of the data and some have gone missing whereas the print contacts functions outputed nothing.

John Bob 2021 25-Nov-21 2:18am View

the actual results from printusers function gave me only half of the data and some have gone missing whereas the print contacts functions outputed nothing.

John Bob 2021 25-Nov-21 2:15am View

the program is supposed to read the users and contacts txt files into two seperate linked list and print the informations extracted from both files using the print functions

John Bob 2021 24-Nov-21 11:46am View

one more thing, when i change the data type for id, age & phone to int, it gives me this message:[Error] no matching function for call to 'getline(std::ifstream&, int&)'

John Bob 2021 24-Nov-21 11:17am View

okay got it.. thank you.. :)

Comments by John Bob 2021 (Top 11 by date)