Question 1

What happen in case of multiple catch blocks?

A. Either super or subclass can be caught first. B. The superclass exception must be caught first. C. The superclass exception cannot caught first. D. None of these

Question 2

System class is defined in .................

A. java.util package B. java.lang package C. java.io package D. java.awt package

Question 3

Which keyword is used to specify the exception thrown by the method?

A. catch B. throws C. finally D. throw

Question 4

What will be the output of the following piece of code: <pre class="prettyprint"> class Person{ public void talk() {} } public class Test{ public static void main(String args[]){ Person p = null; try{ p.talk(); } catch(NullPointerException e){ System.out.print("There is a NullPointerException. "); } catch(Exception e){ System.out.print("There is an Exception. "); } System.out.print("Everything went fine. "); } } </pre>

A. There is a NullPointerException. Everything went fine. B. There is a NullPointerException. C. There is a NullPointerException. There is an Exception. D. This code will not compile, because in Java there are no pointers.

Question 5

Exception generated in try block is caught in ........... block.

A. catch B. throw C. throws D. finally

Question 6

What will be the output? <pre class="prettyprint"> class MyClass{ public String test(){ try{ System.out.print("One"); return ""; } finally{ System.out.print("Two"); } } } public class Test{ public static void main(String args[]){ MyClass m = new MyClass(); m.test(); } } </pre>

A. One B. Two C. One Two D. Compilation Error

Question 7

Determine output of the following program code? <pre class="prettyprint"> public class Test{ public static void main(String args[]){ int i; try{ i = calculate(); System.out.println(i); }catch(Exception e){ System.out.println("Error occured"); } } static int calculate(){ return (7/2); } } </pre>

A. 3 B. 3.5 C. Error occured D. Compilation Error

Question 8

What will be the result after the class Test execution? <pre class="prettyprint"> class A{ public void doA(){ B b = new B(); b.dobB(); System.out.print("doA"); } } class B{ public void dobB(){ C c = new C(); c.doC(); System.out.print("doB"); } } class C{ public void doC(){ if(true) throw new NullPointerException(); System.out.print("doC"); } } public class Test{ public static void main(String args[]){ try{ A a = new A(); a.doA(); }catch(Exception ex){ System.out.print("error"); } } } </pre>

A. "doCdoBdoA" is printed B. "doAdoBdoC" is printed C. "doBdoAerror" is printed D. "error" is printed

Question 9

Which of the below statement is/are true about Error? A. An Error is a subclass of Throwable. B. An Error is a subclass of Exception. C. Error indicates serious problems that a reasonable application should not try to catch. D. An Error is a subclass of IOException.

A. A and D B. A and B C. A and C D. B and C

Question 10

In which of the following package Exception class exist?

A. java.util B. java.file C. java.io D. java.lang

Java Exception MCQ