JAVA Exceptions
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(); }}

Compilation fails-Exception NullPointerException is not compatible with throws clause in
Value-A
None of these
Name-B
Compilation succeed but no output
printName()

ANSWER DOWNLOAD EXAMIANS APP

JAVA Exceptions
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"); } }}

"exception" is printed.
None of these
"null pointer exception" is printed.
Compilation fails saying NullPointerException has already been caught.
"one" is printed.

ANSWER DOWNLOAD EXAMIANS APP

JAVA Exceptions
What will be the result after the class Test execution?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"); } }}

"error" is printed
"doBdoAerror" is printed
"doAdoBdoC" is printed
nothing is printed
"doCdoBdoA" is printed

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON JAVA Exceptions