My first method deviceList is able to work successfully and I am able to store a value in the variable String.id. I am then trying to use that string in my second method addReview1 to implement that …
Tag: methods
Creating a sorted link list out of a normal linked list
As I’ve just started programming a few months back a lot of new information is coming and I’m having trouble catching up.So here I have created what I thought was a sorted linked list.Turns out it is not sorted The method works,it inserts the persons,but they arent sorted like they should be.What …
Calling methods and how to use them
The task I am trying to do is to utilise the given classes and methods are to take the money from the richest account and give it to the poorest so they have the same balance and to print “(name) has $(amount).” I am clueless on which method to use and anything I try gives an error or and incorrec…
How to insert a string in a circular linked list (i want to check the duplicate words in the circular linked list)?
Here is the linked class that I created and I wrote a method that checked if there was a duplicate words in my linked list. I tried to sent the string to the addFirst method but I don’t know why it doesn’t work with me in the main i can’t insert the words to the circular linked list Answer s…
Two java files. Getting IllegalAccessError when running class with main method trying to access a method from the other file
Learning Java. I have two files, each containing one java class. When I run the file with the main method, I get the following error: Exception in thread “main” java.lang.IllegalAccessError: failed to access class TapeDeck from class TapeDeckTestDrive (TapeDeck is in unnamed module of loader ̵…
What does push into stack means? move or duplicate method?
When an object calls a function, the function would be pushed from the method area into the stack. My question is: Q: What does that “push” mean in this context? Does that simply mean move(from the method area) or copy of the function(a copy of the method pushed onto the stack)? Answer The method …
Are values returned by static method are static?
Please consider this code Will this static method return a new instance of MyClass every time it is called? or it is going to return a reference to the same instance over and over? Answer Lol lol lol Declaring a method static means it is a class method and can be called on the class without an instance (and c…
ATM Machine in Java
I have been trying to figure out what is going wrong with this program I’m writing. Heres the full description of what I’m trying to do: Use the Account class created in Programming Exer- cise 9.7 to simulate an ATM machine. Create ten accounts in an array with id 0, 1, . . . , 9, and initial bala…
Why is throws part of the method signature
Why throws, on a method, is part of its signature? It seems strange to include it. Here is an example where it is in the way: If anyone were to see this method from the outside, they might try to use it without knowing that it is not supported. They would only learn it on trying to run the code.
null pointer exception error calling method
I get this null pointer exception error if i call a method. if (farm1.cropStat(row, col) ) here’s the method here’s the initialization pls help 🙁 Answer Whenever you see a pattern that looks like this replace it with the equivalent It is the same thing. As far as the error goes, you need to revers…