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"); } }} "one" is printed. None of these "null pointer exception" is printed. "exception" is printed. Compilation fails saying NullPointerException has already been caught. "one" is printed. None of these "null pointer exception" is printed. "exception" is printed. Compilation fails saying NullPointerException has already been caught. ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions 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 3 2 3 3 1 2 3 1 1 3 2 3 3 1 2 3 1 ANSWER DOWNLOAD EXAMIANS APP
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(); }} Name-B None of these Value-A Compilation succeed but no output Compilation fails-Exception NullPointerException is not compatible with throws clause in printName() Name-B None of these Value-A Compilation succeed but no output Compilation fails-Exception NullPointerException is not compatible with throws clause in printName() 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"); } }} "doBdoAerror" is printed "doAdoBdoC" is printed "error" is printed nothing is printed "doCdoBdoA" is printed "doBdoAerror" is printed "doAdoBdoC" is printed "error" is printed nothing is printed "doCdoBdoA" is printed ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions public class Test{ public static void main(String args[]){ try{ int a = Integer.parseInt("four"); } }}Which exception could be handled by the catch block for above? NumberFormatException ClassCastException None of these IllegalStateException ArrayIndexOutOfBoundsException NumberFormatException ClassCastException None of these IllegalStateException ArrayIndexOutOfBoundsException ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions Which keyword is used to explicitly throw an exception? try catch throwing throw try catch throwing throw ANSWER DOWNLOAD EXAMIANS APP
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