How to get timestamp in string format in Java? “yyyy.MM.dd.HH.mm.ss” This is what I have, but Timestamp() requires an parameters… Answer Replace with because there is no default constructor for Timestamp, or you can do it with the method:
How to increment time every second in Libgdx
I try to add time to my game that will increment every second. How to fix that? I add my code below as your note, delta is Gdx.graphics.getDeltaTime(). ‘time’ is string. but looks like the time increment slowly. means that when time already run about 1,5 sec, ‘time’ still increase 1. I…
Custom tag’s support when migrated from Struts 1 to Struts 2
There is a project developed in Struts 1 to be migrated to Struts 2. Problem is: The application has a lot of custom tags were written using Struts 1. So when migrating to Struts 2 is there a way that I can keep those custom tag support for existing JSPs. But we suppose to remove all the Struts 1.x related
Derby: Another instance of Derby may have already booted the database
I would like to use Derby in a Network Server Mode and followed the instructions on their website. Starting derby: Connecting with ij: Connecting to Derby in Java: The DriverManager.getConnection() is failing with: Haven’t I just started derby in network server mode? Why am I getting this error? Answer …
Getting values from one Array List using objects of another array list java
I have 3 ArrayLists. Students (ID, Name, Program) Courses (ID, Name, Credit Hours) StudentCourses (StudentId, CourseID) I am searching from StudentCourses by passing the StudentID and getting the courses registered with his/her name. My StudentCourse ArrayLIst has objects like this 49 (Student ID) CS233(Cours…
Converting C++ code to JAVA
I have to convert my code to Java Code I already converted but i couldn’t find my mistake i cannot point variables to each other.. This is my java code when i look at the int sum1 = (i / 2) + fun(k.value=i); int sum2 = fun(k.value=j) + (j / 2); part isn’t true about point to true values. How
Why do java intrinsic functions still have code?
There are many methods in the Java API that are intrinsics, but still have code associated with them when looking at the source code. For an example, Integer.bitCount() is an intrinsic, but if you open the Integer class file, you can see code with it. What purposes might this code serve if it is not necessari…
Why int j = 012 giving output 10?
In my actual project It happened accidentally here is my modified small program. I can’t figure out why it is giving output 10? public class Int { public static void main(String args[]) { …
Android – Keep user logged in
I’m trying to make a login with PHP and MySQLi for Android. What I don’t understand is how to keep the user logged in? I saw a simple tutorial where someone used SQLite to safe information but I’m not aware if that is really secure way. How should I save the user information to keep the user…
Using Streams with primitives data types and corresponding wrappers
While playing around with Java8’s Streams-API, I stumbled over the following: To convert an array of primitive wrapper classe objects into a Stream I just have to call Stream.of(array). But to convert an array of primitive data types, I have to call .of(array) from the corresponding wrapper (class) stre…