Extends

Extends is a keyword in several programming languages used to denote implementation inheritance

Implements

`implements` is a keyword in several programming languages used to denote implementation of an interface.



Better runnable thread

Example

"Which i think makes sense because extends from a class should take higher priority than implements from an interface"

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Super class method and Interface default method conflict resolution

"They say that implements runnable is more preferrable than extends thread"

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Implementing Runnable and using Thread's methods within your own class

"Why is implements runnable a better option than extends from thread class"

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Implementing Runnable vs. extending Thread

"I also know implements runable is better than extends thread"

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Why there are two way of using thread in java?

"I have read that implements runnable is better than extends thread but i have no idea of how"

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How To Convert extends Thread Class to Implement Runnable

"You could also so an anonymous class which implements runnable;but whether or not your use an anonymous class is orthogonal to the question of whether implementing runnable or extends thread is the better mechanism to define your thread task"

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When you should implement Runnable?

"Implements runnable is better because you can extends other classes"

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How to Multithread when already extending a class

"I have not found a lot of times when implements an interface would be a better system than extends a superclass"

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When to implement an interface and when to extend a superclass?

Easier value listview

Example

"Second in order to add or update the value of listview in general extends arrayadapter is much easier than implements baseadapter because of arrayadapter support add remove insert method by itself"

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Update Listview item and get values using BaseAdapter Android

"Note extends mouseadapter is easier since you only need to implements the methods you want to handle"

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How to avoid child-GUI-objects to take over mouse listener?

Fragment1 fragment loadermanager.loadercallbacks

Example

"Public class fragment1 extends fragment implements loadermanager.loadercallbacks choreographer skipped 31 frames"

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AsyncTaskLoader slows down fragment tabs transition (Skipped frames)

"That way you have to implements every method in the collection interface bt;making your class extends abstractcollection extends abstractcollection is much more easy since it does"

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Right way to make my own collection in java

Others

Example

Implements gives larger errors because i tried with extends

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Type The type cannot be a superinterface of Do; a superinterface must be an interface

If foobar implements a is s not obvious from the names that b extends a declaring foobar in such a way may make foobar implements a is a tad easier to understand but more often than not that just means you need to rethink the relationship between b and a

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Interface syntax in Java

Probably some debate can be had about that decision but i felt like that was a lot less work than extends each abstract enum class with a custom one of my own and implements the abstract functions

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Template specialization of a single method from a templated class

Extends makes more sense to me here than implements maybe it s a typo in the book

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The LocationListener class doesn't have an onLocationChanged() method?

You may only rarely need to do anything more than extends the abstract classes with nothing more to implements than the common action

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CQRS How to avoid repeating fields between command and event?

This is kind-of the functionality you for instance see but you instantly already see that there it s called at an instance and the fact it requires to extends rather then implements pdostatement has more to do with the c-level implementation functionality of that class

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PHP Namespaces and inheritance

But if you d like to extends this api to be used by the external services then you ll be in a much better position with implements oauth 2.0 using doorkeeper because you can easily configure for example a authorization code grant for them

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Advantages of using OAuth Password Credentials Grant over Token Access Authentication

Is implements the rawcomparator that much faster than extends writablecomparator

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Is implementing the RawComparator really that much faster?

More or less the same thing as the accepted answer can be implements more succinctly by extends the gridviewpager like this

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Android Wear WearableListView in a GridViewPager

A possible reason is that extends represents a a stronger relationship than implements although both represent is a or is a type of relationships

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When we are inheriting a class and interface then we have to write first extends and then implements but not viceversa?why

Are there some solutions available to extends asp.net identity better than implements a custom solution as suggested in the links

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Integrate ASP.NET Identity with QR scan based login

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