Can java constructors throw exceptions What JavaChamp Team Flash

Question 34 / 297: What is the expected output of compiling and running the following code?

import java.io.IOException;

class AirPlane {
	public AirPlane() throws IOException, RuntimeException {
		System.out.println("AirPlane");
	}
}

class AirJet extends AirPlane { } // line 7

public class Tester {
public static void main(String args[]) throws IOException { // line 10
	new AirPlane(); // line 11
}
}

A AirPlane

B Compile error at line 7, AirJet must declare a constructor that throws IOException or any of
its supertypes

C Compile error at line 10, main() must throw also RuntimeException

D Compile error at line 11 ,new AirPlane() must be within try/catch block

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Explanation:

If the Super class provides a constructor that throws a checked exception, then the sub classes must define an explicit constructor that also throws the same exception or one of its super types. For example class AirJet must declare a constructor like this

AirJet(int x) throws IOException{...}

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