I’m trying to generate an array of unique values but my first number is always 0, how can I fix this? Answer In your approach, you have three mistakes (that I noticed). The first, this loop for (int number = 1; number < list.length; ++number) should start with zero. So, for (int number = 0; number < list.length; ++number). The
Tag: arrays
Why can’t my phone app open a file it stored in a Room Database?
Problem: My Android phone app can open various file types stored in an Android Room pre-populated SQLite database but it cannot open files the app itself has added to the pre-populated database (except it can open .txt files). I believe the issue is probably with how the I coded the copying and conversion of a selected file to byte[] data.
How to write a method which will take item array as input and return item with least price (considering discount as well)?
I am new to Java, and I am trying to declare another method in this class called getItemPrice, which will take item array as input and return item with least price (considering discount as well). So far, I have declared an array of 2 item objects in main method. This is my main method: As you can see above, each
How can I create an Array in Descending Order?
I’m working on this project using Arrays. I have a method called createRandomIntArray that creates an array. This method is meant to return the Array in descending order. I have been able to do just that but I want to know if there is a more effective way to write this method than the way I wrote it. I have
Why am I getting an error when I try to create the Scoreboard object with an array?
The last line in this is giving me an error and I’m not sure why because those are the parameters for the Scoreboard class. Answer Short answer Change to: Longer answer Consider the code: You are not doing the incorrect So as you know, there is no necessity to pass the variable type as well as the value, and in
Java .split method returning empty array
I am trying to count all the words in each sentence in an array of multiple sentences automatically from a file in eclipse. When I’m splitting the paragraph into sentences the java .split method is returning an empty array Here is the code that is causing me trouble here is my sentence class And finally, here is my text file
char array not modified after passing trough a method that should modify it in java
Hello i have a problem with the code i’ve written down below. From what i’ve understand so far what is passed to the method is the memory reference of charArray thus the variable charArray and tabCar should point at the same memory place. thus the modification done in my method reverseArray should be seen but somehow the 2 print statement
All array combinations with zero in a loop
The following array is given I now want to loop to output all combinations of these numbers with 0. Each number can occur alone or with any other numbers in the array (the rest should be 0). The original position of the numbers should be maintained when they are included in a combination. The numbers of the original array should
Return type method “Return value of the method is never used” problem
i have a task to complete. I have to create a return type method takes String array as an argument and returns to int. So my method works completely fine i will use it to count multiple elements of an element in an array but on method name it says “Return value of the method is never used”. I just
Add/Subtract/etc element by the next element in an array
I have an array with [25, -6, 14, 7, 100]. The expected output is Basically, the next element is subtracted/added to the current element when looping. That sum and product is easy as I only need to do The problem is that when I do difference -= i, it gives me -108, which is wrong. And when there is only