Rules to create immutable class: In order to make a Java class immutable, follow these rules. Do not implement setter methods (known as mutators) that can modify the state of the object. Declare all fields (data members) private and final. private, so that they cannot be accessed outside...
This tutorial introduces how to implement key-value pairs in Java. ADVERTISEMENT In Java, to deal with the key-value pair, theMapinterface and its implementation classes are used. We can use classes such asHashMapandTreeMapto store data into the key-value pair. ...
In this tutorial, we’ll compare these two approaches, and learn four methods to implement the deep copy. Further reading: Java Copy Constructor Here's how to create copy constructors in Java and why to implementing Cloneable isn't such a great idea. Read more→ How to Copy an Array in ...
Access to Xaml elements from another code behind file Access User Control elements in class (or other user user control or in the same user control but in static void) wpf Accessing a member value set in previous window other then using a static member Accessing an ItemsControl's Children Acc...
dojandskillsas the state, for deep cloning we do not need to worry about the code>name field because it is a String object and by default all strings are immutable in nature. You can read more about immutability onHow to Create an Immutable Class in JavaandWhy String is Immutable and Fi...
How to implement reverse-lookup in enum? What is EnumMap and EnumSet? 1.12.Java Serialization and Serializable Interface Suppose you are preparing for a Java interview with a Telecom company or any such domain that uses serialization in their application flows. In that case, you will highly bene...
Using final keyword to prevent inheritance: When a class is declared as final then it cannot be subclassed i.e. no other class can extend it. This is particularly useful, for example, when creating an immutable class like the predefined String class. Declaring a class as final implicitly ...
In Java How to remove elements from ArrayList while iterating? The list.remove(s) will throws java.util.ConcurrentModificationException, if you remove an
HashSet, LinkedHashSet, HashMap, Hashtable, or WeakHashMap, make sure that the hashCode() of the key objects that you put into the collection never changes while the object is in the collection. The bulletproof way to ensure this is to make your keys immutable, which has also other ...
Learn how to create an immutable lightweight class in C# that encapsulates automatically implemented properties. There are two implementation approaches.