Java Tutorials: Difference between Interface & abstract class

interface vs abstract class: When to use interface & when to use abstract class: Design difference: Interface - When all functionalities are implemented differently as per different behaviour then choose interface as their interface is different though their behaviour is same. - So as far as all classes are following a protocol (behaviour) but way of implemeting is different, choose interface. abstract class: - When some of the functaionalities are same, but some are implemented differently, then choose abstarct classes. - So in abstract class, some of the implementation are same for all, but some are other, but in interface, all implementation are different. Behaviour difference: - Generally interface are utility method, which can be implemented by any classes like Comparator, but abstract classes are co-related - You can not extends more than 1 class, but you can implement multiple interface, so a interface in java, what is difference between interface & abstract class in java, abstarct class vs interface, java abstarct class vs interface, difference between abstarct class vs interface, abstract class, when to use interface, when to use abstract class, interface, class, java tutorial, coding simplified, java CHECK OUT CODING SIMPLIFIED https://www.youtube.com/codingsimplified I started my YouTube channel, Coding Simplified, during Dec of 2015. Since then, I've published over 300+ videos. My account is Partner Verified. ★☆★ VIEW THE BLOG POST: ★☆★ http://codingsimplified.com ★☆★ SUBSCRIBE TO ME ON YOUTUBE: ★☆★ https://www.youtube.com/codingsimplified?sub_confirmation=1 ★☆★ SEND EMAIL At: ★☆★ Email: thecodingsimplified@gmail.com