Top "Bluej" questions

Hashmap error: incompatible types

I made a hashmap that stores roman numerals as keys and their decimal numbers as values. The error says "incompatible …

java hashmap bluej

Constructor in class cannot be applied to given types. Hope for assistance

I'm fairly new to Java and I'm using BlueJ. I keep getting the error: constructor ItemNotFound in class ItemNotFound cannot …

java constructor bluej

unexpected return value when computing average?

I am having trouble being able to return the value of the "average" variable in my getter method. I keep …

java getter getter-setter bluej

Eclipse IDE Scope Highlighting?

When I first learned Java, I was using an IDE called "BlueJ." It had this feature called "Scope Highlighting" which …

java ide scope highlighting bluej

Incrementing and decremening a single shared variable with multiple Threads

When incrementing and decrementing multiple threads using a single shared variable, how can I ensure that the threads count in …

java multithreading concurrency bluej

BlueJ and Input from keyboard

i have written the following code: import java.io.*; public class Typer { public static void main(String[] args) { Console cons; …

java input console java-io bluej

Greatest of three numbers using switch case

I want to find out the greatest number, out of three given numbers, using switch-case(without using if) I answered …

java bluej

Trying to save a file as .dat on mac

My computer science class (java) requires us to save a series of numbers in an external file which we save …

java macos bluej textedit

Java - pdfbox cannot import jar?

Hi there Please can someone help me with this simple problem I believe... I've already asked over 8 experts on a …

java pdf netbeans pdfbox bluej