Quizzes – Java exceptions

The following Java exercise(s) are designed to help you understand the article to which it belongs. If the following quizzes are too hard, then I recommend to read the article first, which offers a theoretical explanation including examples and exercises.

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Quiz 1: Handling Exceptions In Java

What is written to the standard output as the result of executing the following code?

public class MyClass{

	public void method(){
		try{
			int x = Integer.parseInt("x");
			System.out.print(" a");
		}
		catch(NumberFormatException e){
			System.out.print(" b");
		}
		catch(IllegalArgumentException e){
			System.out.print(" c");
			return;
		}
		catch(Exception e){
			System.out.print(" d");
		}
		finally{
			System.out.print(" e");
		}
		System.out.print(" f");
	}
	public static void main(String[] args){
		MyClass mc = new MyClass();
		mc.method();
	}
}

Select the correct answer.


 

Quiz 2: Handling try catch and finally In Java

What is written to the standard output as the result of executing the following code?

public class MyClass{

	int x;
	String str;

	public void method(){
		try{
			str.indexOf(0);
		}
		catch(SecurityException s){
			x ++ ;
		}
		catch(NullPointerException n){
			x += 3;
		}
		catch(RuntimeException r){
			x += 5;
		}
		catch(Exception e){
			x += 7;
		}
		finally{
			x += 8;
		}
	}
	public static void main(String[] args){
		MyClass mc = new MyClass();
		mc.method();
		System.out.println(mc.x);
	}
}

Select the correct answer.


 

Quiz 3: Dividing by 0 Exception

What is written to the standard output as the result of executing the following code?

public class MyClass{

	int y;

	public void method(){
		try{
			int i = 2 / y;
		}
		catch(NullPointerException n){
			y += 3;
		}
		catch(RuntimeException r){
			y += 5;
			return;
		}
		catch(Exception e){
			y += 7;
		}
		finally{
			y += 6;
		}
		y += 4;
	}
	public static void main(String[] args){
		MyClass mc = new MyClass();
		mc.method();
		System.out.println(mc.y);
	}
}

Select the correct answer.





Sar Maroof is a professional software development teacher, gives master classes and publishes technical articles. He is also an expert software developer and worked for several big as well as small companies and later as a freelancer.

1 Comment

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  1. Home run! Great slugnigg with that answer!

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