Object-oriented programming languages - How Old Today?

1

PHP

2

Chapel_(programming_language)

2

D_(programming_language)

2

Dart_(programming_language)

2

Eiffel_(programming_language)

2

Java_(programming_language)

2

Kotlin

2

Nemerle

2

Object_Pascal

2

Perl

2

Pike_(programming_language)

2

PowerShell

2

Processing_(programming_language)

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Vala_(programming_language)