noun
object-oriented language
A programming language that supports object-oriented programming concepts such as classes, objects, inheritance, and polymorphism. Common examples include Java, C++, and Python.
Javaは代表的なオブジェクト指向言語の一つです。
Java is one of the representative object-oriented languages.
Refers to the programming paradigm itself, while オブジェクト指向言語 refers to a language that supports that paradigm.
Compound of オブジェクト (object) + 指向 (orientation) + 言語 (language), a calque from English 'object-oriented language'.