public class ArrayPQK<P extends Comparable<P>, T> implements PQK<P, T> { int maxsize; int size; int head,tail; Pair<P, T>[] nodes; publi
I've been using the == operator in my program to compare all my strings so far. However, I ran into a bug, changed one of them into .equals()
I'm using android studio to connect to a Microsoft SQL Server and I can't use the JDBC for JDK 17. It just appears with the following error message: 'com.androi
The default algo for RandomGenerator ie. L32X64MixRandom as of JDK 18 (available since 17), generates the same number each time on individual invocations. jshel
I have this error "Unable to get connection, DataSource invalid: "java.sql.SQLException: No suitable driver found for /Users/testdb.db" when trying to select q
Say we have a select query like select a.col1,a.col2,a.col3,b.col1,b,col2,c.col1 from a, b, c where a.col1(+)=b.col2 and b.col3(+)=c.col2 In mybatis xml we hav
I have an array of bytes of a JAR file and I need to load all the classes from this array. How can I do this without converting this array to a file?
I am writing code that lets the user enter, search for and remove participants. Right now I have the JFrame that has a JMenu on it with a few JMenuItems. When I
I have a Java interface with several implementing classes. Each implementation class needs its own associated (sub)template. At runtime I add a collection (Li
My app offers the possibility to launch it through as many widgets as wanted by the user. To determine which widget trigerred the launch, I use an extra paramet
I'm trying to add an item to the ArrayList in a certain order Iterator<Rating> it = arr.iterator(); while(it.hasNext()){ Rating o = it.next(); int
So for this problem, my function is supposed to return the top-10 list of avengers with the most appearances (in decreasing order). In the Avenger class it is
How do I check if double is NEGATIVE_INFINITY and not POSITIVE_INFINITY? There is only one method in Double class isInfinite() which checks whether the double i
For example, I have someFile.jar. I can run it simply using java -jar someFile.jar. But I want to create some files (for example .deb file) to install this jar
I use Spring MVC (no Spring Boot) with HATEOAS in order to get HAL-FORMS with Affordance response like this: "_links": { "index": { "hre
I have set up in-app billing on an Android app (java). When I call launchBillingFlow on the BillingClient: BillingFlowParams billingFlowParams = Billing
package Multiplemethods; import java.util.stream.DoubleStream; public class TimeOffice { public static void main(String args[]){ //instance variables dou
I have created a standard Google Maps Activity in my app in Android Studio and the map works as expected. My Activity is called 'NativeMap' and then the activit
On Android API 28, I'm trying to get the album art for a particular album using the albumID. The code throws the following error on getBitmap android.database.s
I need to mock some class that contains @PostConstruct method, but I get NullPointerException inside @PostConstruct method. My code looks like the following: @S