Can you name the types of references used in Java for managing objects?

In Java, different types of references are used to manage objects and their garbage collection, which determine how long an object remains accessible and when it can be collected:

• Strong Reference — a normal reference to an object. As long as such a reference exists, the object will not be collected.
• Soft Reference — objects with such references are only collected when memory is low, useful for caching.
• Weak Reference — objects with such references can be collected during the next garbage collection cycle, even if the reference still exists.
• Phantom Reference — used to track when an object is ready to be collected but has not yet been collected. It allows performing additional actions after the object is collected.

Example of creating a weak reference:

import java.lang.ref.WeakReference;

Object obj = new Object();
WeakReference<Object> weakRef = new WeakReference<>(obj);
obj = null; // Now the object is available for garbage collection