TheServerSide

ObjectOutputStream example: A Java object serialization tutorial

Community driven content discussing all aspects of software development from DevOps to design patterns. In this Java serialization example, we will use both the ObjectOutputStream and the ...
InfoWorld

Polymorphism and inheritance in Java

We will focus on the relationship between polymorphism and Java inheritance. The main thing to keep in mind is that polymorphism requires an inheritance or an interface implementation. You can see ...
TheServerSide

Find duplicates in a List in Java

Community driven content discussing all aspects of software development from DevOps to design patterns. It’s easy to remove duplicates from a list in Java. There are a variety of functions in Java ...
NBC News

U.S. shoots down 'high-altitude object' over Alaskan airspace, White House says

WASHINGTON — The U.S. military on Friday afternoon shot down a "high-altitude object" flying over Alaskan airspace and Arctic waters, National Security Council official John Kirby confirmed at the ...
GitHub

Fix java.lang.NullPointerException: Attempt to invoke virtual method 'int java.util.ArrayList.size()' on a null object reference in net.foltys.foodcheck.ui.fragment ...

androidx.fragment.app.FragmentManager$4.run (FragmentManager.java:413); ...