Java 3D Game Engine?
Have you looked at the Lightweight Java Game Library yet? It sounds like what you’re looking for.
java
void is an invalid type for this variable
Your onRadioButtonClicked is contained within your onCreate method—make them separate methods. Add a closing brace } after:
Understanding BufferedImage.getRGB output values
getRGB(int x, int y) return you the value of color pixel at location (x,y).You are misinterpreting the returned value.It is in the binary format. like 11…11010101 and that is given to you as int value.If you want to get RGB (i.e. Red, Green, Blue) components of that value use Color class. e.g. Then you can … Read more
Java: is there an easy way to select a subset of an array?
Use copyOfRange, available since Java 1.6: Alternatives include: ArrayUtils.subarray(array, 1, array.length) from Apache commons-lang System.arraycopy(…) – rather unfriendly with the long param list.
Simple HTTP server in Java using only Java SE API
Since Java SE 6, there’s a builtin HTTP server in Sun Oracle JRE. The com.sun.net.httpserver package summary outlines the involved classes and contains examples. Here’s a kickoff example copypasted from their docs (to all people trying to edit it nonetheless, because it’s an ugly piece of code, please don’t, this is a copy paste, not mine, moreover you should never edit quotations … Read more
Configure active profile in SpringBoot via Maven
The Maven profile and the Spring profile are two completely different things. Your pom.xml defines spring.profiles.active variable which is available in the build process, but not at runtime. That is why only the default profile is activated. How to bind Maven profile with Spring? You need to pass the build variable to your application so that it … Read more
Why I am getting DefaultHttpClient is deprecated?
Use this: Refer to this stackoverflow post
Java equivalent to C# extension methods
Java does not support extension methods. Instead, you can make a regular static method, or write your own class.
Cannot invoke toString() on the primitive type int
Primitive types do not have methods, as they are not objects in Java. You should use the matching class:
Java FileOutputStream Create File if not exists
It will throw a FileNotFoundException if the file doesn’t exist and cannot be created (doc), but it will create it if it can. To be sure you probably should first test that the file exists before you create the FileOutputStream (and create with createNewFile() if it doesn’t):