Java provides a way for the programmer to exercise control over memory management by marking certain objects as expendable via reference objects. Should an application’s memory requirements ...

Method references in Java are part of the broader set of features introduced and enhanced in Java 8 and beyond. They are a concise way to refer to methods of classes or objects.

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.

The management of object references that lie solely within the framework client or solely within the framework infrastructure is relatively straightforward for the respective author to control.

An instance method is invoked using an object reference. Java provides an implicit parameter named this, which can be used to reference the invocation object within the method body. An instance method ...

The circular reference is fixed when the person is serialized because instead of writing the Group as json it just writes the id of the group, leaving it to the recipient to decompose what the id ...

Java stores object values in heap memory; references to the value are stored in the stack. Another way to create strings is to use the new keyword, as in the following example. String s1 = new String( ...