In a previous article, Everything You Need to Know About Java Serialization Explained , I explained how we can serialize/deserialize one object using the Serializable interface and explain how we can customize the serialization process using writeObject and readObject methods. Disadvantages of Java Serialization Process But these customizations are not sufficient because the JVM has full contro...

In this Java Challenger you’ll learn how equals() and hashcode() combine to make object comparisons efficient and easy in your Java programs. Simply put, these methods work together to verify if two objects have the same values. Without equals() and hashcode() we would have to create very large " if " comparisons, comparing every field from an object. This would make code really confusing and h...

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