``` // original class in java class SomeClass { ...

# announcements

[rook]

//  original class in java
	class SomeClass {
		SomeClass(Mandatory mandatoryThing) {}
		SomeClass(Mandatory mandatoryThing, Important importantThing) {}
		SomeClass(Mandatory mandatoryThing, Important importantThing, Optional optionalThing) {}
	}

//  extending the class in kotlin
	class CustomClass : SomeClass {
		constructor(mandatoryThing: Mandatory) : super(mandatoryThing)
		constructor(mandatoryThing: Mandatory, importantThing: Important) : super(mandatoryThing, importantThing)
		constructor(mandatoryThing: Mandatory, importantThing: Important, optionalThing: Optional) : super(mandatoryThing, importantThing, optionalThing)

		init {
			//can't do this since I can't use importantThing
		}
	}