This post shows readers how to create an array in Java. Including: Array Lists, multidimensional arrays, maps, and more.

Copying objects is a common Java programming operation that has one serious trap. Here's how to avoid copying from an object reference and only copy the instance and values you want.

Don't let the occurrence of a RuntimeException in Java bring your code to a standstill. Here are 10 examples of how to avoid runtime exceptions in Java.

Java’s Scanner String input method To take String input from the user with Java’s Scanner class, just follow these steps Import java.util.*; to make Java’s Scanner class available Use the new keyword ...

The agent class above exposes a statically available method for accessing Instrumentation.getObjectSize(Object). The next code listing demonstrates a simple ‘application’ that makes use of it.