JAVA EXCEPTIONS QUIZ

What will be the result if NullPointerException occurs at line 2?1. try{2. //some code goes here3. }4. catch(NullPointerException ne){5. System.out.print("1 ");6. }7. catch(RuntimeException re){8. System.out.print("2 ");9. }10. finally{11. System.out.print("3");12. }

1

1 2 3

3

1 3

2 3

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What is the output for the below code ?import java.io.FileNotFoundException;class A{ public void printName() throws FileNotFoundException{ System.out.println("Value-A"); }}class B extends A{ public void printName() throws NullPointerException{ System.out.println("Name-B"); }}public class Test{ public static void main (String[] args) throws Exception{ A a = new B(); a.printName(); }}

Value-A

printName()

Name-B

Compilation fails-Exception NullPointerException is not compatible with throws clause in

None of these

Compilation succeed but no output

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Given the code. What is the result when this program is executed?public class Test{ static int x[]; static{ x[0] = 1; } public static void main(String args[]){ }}

StackOverflowException is thrown

ArrayIndexOutOfBoundsException is thrown

None of these

IllegalStateException is thrown

ExceptionInInitializerError is thrown

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Which of the following blocks execute compulsorily whether exception is caught or not.

catch

throws

finally

throw

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Predict the output:public class Test{ public static void main(String args[]){ try{ String arr[] = new String[10]; arr = null; arr[0] = "one"; System.out.print(arr[0]); }catch(Exception ex){ System.out.print("exception"); }catch(NullPointerException nex){ System.out.print("null pointer exception"); } }}

"null pointer exception" is printed.

"exception" is printed.

"one" is printed.

None of these

Compilation fails saying NullPointerException has already been caught.

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What will be the result of executing the following code?public class Test{ public void divide(int a, int b){ try{ int c = a / b; }catch(Exception e){ System.out.print("Exception "); }finally{ System.out.println("Finally"); } public static void main(String args[]){ Test t = new Test(); t.divide(0,3); }}

Prints out: Finally

Compile with error

Prints out: Exception

None of these

Prints out: Exception Finally

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Which exception is thrown when divide by zero statement executes?

NullPointerException

ArithmeticException

NumberFormatException

None of these

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The class at the top of exception class hierarchy is .................

Exception

ArithmeticException

Object

Throwable

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What is the output of the following program code?public class Test{ public static void main(String args[]){ try{ int i; return; } catch(Exception e){ System.out.print("inCatchBlock"); } finally{ System.out.println("inFinallyBlock"); } }}

inCatchBlock inFinallyBlock

inCatchBlock

The program will return without printing anything

inFinallyBlock

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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.

B and C

A and C

B and D

A and D

A and B

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