Now, we turn our focus to the mothership of the Java class inheritance hierarchy, java.lang.Object. What you’ll learn in this Java tutorial ...

In this example, if Address doesn’t implement Serializable, a java.io.NotSerializableException will be thrown when trying to serialize a Person object. See Also: Top Java IDEs and Code Editors ...

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.

This Java runtime exception happens when the wrong type of object is placed into an array. In the example below, a BigInteger array is created, followed by an attempt to add a Double. The Double does ...

JVM heap analysis with Java Flight Recorder Here’s how the Java Flight Recorder’s Old Object Sample event works. When a recording is started, a fixed number of objects from the Java heap are tracked.

In my previous article, I described how to use Java’s reference objects, SoftReference and WeakReference, to build weak references and mark blocks as reclaimable in a simple application.