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<syntaxhighlight lang="cpp">
import std;
class PolarPoint {
private:
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A constructor taking zero number of arguments is called a "no-arguments" or "no-arg" constructor.<ref>{{cite web|url=http://docs.oracle.com/javase/tutorial/java/javaOO/constructors.html|title= Providing Constructors for Your Classes |publisher=Oracle Corporation|date=2013|access-date=2013-12-20}}</ref>
=== JavaScript/TypeScript ===
As of ES6, [[JavaScript]] has direct constructors like many other programming languages. They are written as such
<syntaxhighlight lang="javascript">
class FooBar {
constructor(baz) {
this.baz = baz;
}
}
</syntaxhighlight>
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<syntaxhighlight lang="javascript">
const foo = new FooBar('7');
</syntaxhighlight>
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<syntaxhighlight lang="javascript">
function FooBar (baz) {
this.baz = baz;
}
</syntaxhighlight>
This is instantiated the same way as above.
The [[TypeScript]] equivalent of this would be:
<syntaxhighlight lang="typescript">
class FooBar {
baz: string;
constructor(baz: string) {
this.baz = baz;
}
}
const foo: FooBar = new FooBar('7');
</syntaxhighlight>
=== Object Pascal ===
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