Removing certain characters from a string?

I am thinking about using String.replaceAll() to remove certain characters in my string. It is unclear which charact...

Catch without try error?

I would like to get sum results from two textfields. I wanted a way to return nill in the result textbox. Why is the...

How to setup Appium on Mac OS to run automated tests from JAVA classes on Android and iOS devices?

Problem I was facing with Appium that I decided myself below. I could not find a way to install required components ...

Get full URL and query string in Servlet for both HTTP and HTTPS requests?

I am writing a code which task is to retrieve a requested URL or full path. I've written this code: HttpServletReq...

How is Java platform-independent when it needs a JVM to run??

I just started learning Java and I'm confused about the topic of platform independence. Doesn't "independent" imply...

Display a RecyclerView in Fragment?

I'm trying out the new RecyclerView in Android Lollipop and I'm stuck. I'm trying to receive a list, with an icon a...

Creating a graph in java?

I want to create a program that creates a graph (to be specific a program graph), which stores values at nodes and ...

“Guess the number” in Java?

We are meant to to create a program in java in which the computer randomly guesses a number between 1-100 and allows...

Flip Image with Graphics2D?

I've been trying to figure out how to flip an image for a while, but haven't figured out yet. I'm using Graphics2D ...

Why is there no String.Empty in Java??

I understand that every time I type the string literal "", the same String object is referenced in the string pool. ...

This view is not constrained?

I get the following error and I am using Android studio 2.2 Preview 3. I searched Google but couldn't find any resou...