How to handle java unchecked exceptions Yasser Ibrahim @Jobilize

Author: Yasser Ibrahim

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Question 31 / 297: What is the expected output of compiling and running this code?

class Father {
	public Father() throws RuntimeException {
		System.out.print("Father");
		throw new RuntimeException();
	}
}

class Son extends Father {
	public Son() throws RuntimeException {
		System.out.print("Son");

	}
}

public class Tester {
	public static void main(String[] args) {
			new Son(); // line 17
		
	}
}

A Compile error, an import to java.lang.RuntimeException is required

B Father will be printed then a RuntimeException would be thrown

C Compile error at line 17, new Son() should be within a try/catch block

D Son

E SonFather

F FatherSon

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Explanation:

Implicit call to super() will be called, print Father, then throws a RuntimeException. The remaining of the code in Son constructor won't be continued.

RuntimeException is an unchecked exception which means Son() although that it explicitly declares to throw a RuntimeException, no handling is required

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