Category: Java

I’ve been trying to search for solution for this but ain’t lucky enough to find a correct answer. So my problem is.. I want to remove the first Line break in my EditText after clicking a certain …

Let’s say I have an object Foo which requires some asynchronous work, bar(), to be done before it is ready to be used. It feels like each solution I try, I run into an anti-pattern. Solutions …

I am new to Java so this could be a naive question. I created a Main class like below, and I would like to write some tests for the getArrays, getAverage, and bubbleSortAscending methods, just for the …

Problem: Given a string of lower case letters in the range ascii[a-z], identify the index of character to be removed to change the string into a palindrome. If the string cannot be converted to …

This code works in Android Studio but how can i log in with username and password? Can somebody help me please. package com.example.mqtt; import androidx.appcompat.app.AppCompatActivity; import …

I have the following initial hashmap: LatS=[59, 48, 59, 12, 48] LatD=[41, 42, 46, 42] EW=[W, W, W, W] NS=[N, N, N, N] LonM=[39, 23, 30, 48] State=[OH, SD, WA, MA] LatM=[5, 52, 35, 16] City=[Youngstown,…

I created very simple site where everybody can access /about, authenticated users can access /profile and only user with “ADMIN” role can access. I added one “ADMIN” user in the …

I have an assignment where we are supposed to write a Word Guessing Game. There are 3 4-lettered, 3 5-lettered and 3 6-lettered questions. (The answers are 4,5 and 6 lettered.) 1 out of each of the 4,…

Can someone explain why we compare b to zero then swap it as a in the argument? What is the reason behind this approach? I am having a hard time understanding this algorithm. public int gcd(int a, int …

I’m newbie with Java. I’m create an API with Webflux and ReactiveMongoRepository. I try to save my data from another API. My repository: @Repository public interface AccountApiTrackingRepo extends …