作者彙整: Rafael Chinelato Del Nero

Inheritance and composition are two programming techniques developers use to establish relationships between classes and objects. Whereas inheritance derives one class from another, composition defines a class as the sum of its parts.Classes and obj… 閱讀全文 →

Many programming languages allow passing parameters by reference or by value. In Java, we can only pass parameters by value. This imposes some limits and also raises questions. For instance, if the parameter value is changed in the method, what happ… 閱讀全文 →

Programmers frequently need to sort elements from a database into a collection, array, or map. In Java, we can implement whatever sorting algorithm we want with any type. Using the Comparable interface and compareTo() method, we can sort using alpha… 閱讀全文 →

Threading refers to the practice of executing programming processes concurrently to improve application performance. While it’s not that common to work with threads directly in business applications, they’re used all the time in Java frameworks.As a… 閱讀全文 →

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According to the legend Venkat Subramaniam, polymorphism is the most important concept in object-oriented programming. Polymorphism–or the ability of an object to execute specialized actions based on its type–is what makes Java code flexible. Desi… 閱讀全文 →

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