In this blog we will learn about ArrayList. ArrayList is one of the collection class of collection framework. It is a way of storing elements dynamically in an array. It implements the List interface ...

at java.base/java.io.ObjectOutputStream.writeOrdinaryObject (ObjectOutputStream.java:1433) at java.base/java.io.ObjectOutputStream.writeObject0 (ObjectOutputStream.java:1179) ...

2.9.0 and 2.8.7 A NullPointerException occured indicating the ArrayList was either null or not of the expected type on Android 11 and 12. Android 10 and below A HashMap is succesfully added to the ...

Here the Below Example will show you how you can construct your own Collection(ArrayList) in Java. The below example will show you that our Class Generics will behave like the ArrayList. I have use ...

Community driven content discussing all aspects of software development from DevOps to design patterns. Java collection classes allow a developer to keep track of contained items in one of two ways, ...