Community driven content discussing all aspects of software development from DevOps to design patterns. To find the size or length of a Java array, follow these four steps Declare a variable of type ...

Java’s String class encapsulates an array of bytes. A byte can be converted to a char, in which case, String becomes an array of characters used to compose words, sentences, or any other data you want ...

Community driven content discussing all aspects of software development from DevOps to design patterns. The correct way to convert a String to long in Java is to use the parseLong(String x) method of ...

We migrated to the new driver and we're getting java.lang.IllegalArgumentException: Only singleton array is allowed. I checked the repo and see that Array of numbers was implemented but not array of ...

In this little article, we will see how to get the string representation(tostring) of an object cautiously, that means avoiding NullPointerException. Getting the ...

ArrayList is an heterogeneous collection of objects where each object can be indexed individually. While writing an application there could be some scenarios where we have ArrayList object filled with ...

I've configured Seyren to pull metrics from Graphite. It works at first, but after some time (like 1-2 days) it stops being able to read from Graphite and all figures appear broken. The "Last check" ...

I came across to the many questions asking about to store some kind data in Shared-preferences such as String[] array. Many of these questions are answered with "Use a database". But here i will show ...