Help with tasks

What am I doing wrong below? hints would be great!! Thanks :)

How to solve "The CodeGym server is unavailable. Wait a little, restart IntelliJ IDEA and try again."？？？？？？？？？

I don't know how should I call another constructor?

Hello guys, So here we are, on one hand Iterators. I can easily say to my mind that an iterator is by definition something usefull for Maps ,Lists and Sets. And i also know that we can't modify a Map or a Set during a normal for each loop. But that's all i know, so i go on the Java Doc On the othe

The code its working, but it can't be validate by the last condition (The displayed result should match the task conditions for any input data.) I dont understand where is the problem. i just notice that if you start with -1, the result is NaN. I dont know what this mean actually.

In USD, Euro and Ruble class.

System.out.println("I was born on "+mm++dd+\/+yyyy);

I go trhow file by bites if it is char between 48 -57 i add it in to string and than check, if line finished by (13) i check is number even? yes add to arr. Than sort array and show it on display. All works, but task don't accepted it. Can you help please?

I got the code right so it works in the browser and is correct . But if I run the same code on IntelliJ, the program just says: /Users/test/Desktop/jdk-15.0.1.jdk/Contents/Home/bin/java -javaagent:/Applications/IntelliJ IDEA CE.app/Contents/lib/idea_rt.jar=63276:/Applications/IntelliJ IDEA CE.app/Co

Below is the program. But please clarify for me the line in the subject? It the new Food() selectable object part of Selectable interface? I thought you can't instantiate an interface? public class Solution { public static void main(String[] args) { Food food = new Food(); Sel

It's something to do with the .put method.

getDescription() apparently not implemented correctly. Why? Creating a separate object and printing getDescription works as requested.

int m1 = a < b ? a : b ...what is the meaning of the question mark between a < b ? a : b

public class Solution { public static void main(String[] args) { Man m = new Man("J", 10, "sdhf"); Man m2 = new Man("J", 10, "sdhf"); Woman w = new Woman("J", 10, "sdhf"); Woman w2 = new Woman("J", 10, "sdhf"); System.out.println(m.name + " " + m.age + "

why to use for loop here? without any tutorials on it? use system.out.println rrquired number of times to get the result???

in my opinion.zerg1 is the name of the Zerg object.whats the point in having the code.zerg1.name???? or may b i dnt understand it welll.. clear my doubt.Thanks.

Hi, For some reason my InteliJ project does not import the engine class I've tried solutions that were posted in the forum sections. Could you maybe provide a helping hand? thank you

Hello, according to the computation done my the MyBrain Quantum Computer somewhere in Europe, the following result should be displayed when using the printClasses method: Jerry; - for obj Mouse; - for mouse; obj being downcasted to mouse GrayMouse; - for grayMouse as it was downcasted to GrayMouse

How else do I call the notify method on the client object

Can you help?

i dunno what's wrong

I get the output 13, 13, 45 for the input suggested in the exercise. What am I doing wrong? I feel it's from the fileinputstream but I can't put my finger on it. Please advise. This is the current form, I don't know why it isn't updated. public class Solution { public static void main(String[

Why the message appears? I'm sure the code is OK com/codegym/task/task07/task0723/Solution.java:12: error: unreported exception java.lang.InterruptedException; must be caught or declared to be thrown Thread.sleep(100); public class Solution { public static void main(String[] args) {

I don't understand at all even the previous task.

import java.io.*; public class Pair { public static void main(String[] args) throws Exception { //write your code here BufferedReader reader = new BufferedReader (new InputStreamReader(System.in)); String num1 = reader.readLine(); String num2 = reader.r

intelliJ is not allowing my getSeconds() method to work, not sure why.

It's failing on 3rd condition and I'm not able to understand why. I tried running the code on my local machine with dummy data, and it seems to produce the correct output. I'm clearly removing the template class and style attribute from the copy of element having the template class, Line 24-27

I'm getting different outputs, I'm ot sure I understand the task requirements properly. This ismy curren code: public class Solution { public static void main(String[] args) { System.out.println(getRadix("112")); // Expected output: [3, 27, 13, 15] System.out.println(ge

To solve the question start with looking into the factors of 382. That will tell you where the first paranthesis goes.

1. Why we should use empty class constructor ? 2. I can't understand connection between method and main method ! 3. I'm completely confused. * I know that I ask question a lot but I'm just student.