JAVA Exceptions Which of the following blocks execute compulsorily whether exception is caught or not. catch throws finally throw catch throws finally throw ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions What happen in case of multiple catch blocks? The superclass exception cannot caught first. The superclass exception must be caught first. None of these Either super or subclass can be caught first. The superclass exception cannot caught first. The superclass exception must be caught first. None of these Either super or subclass can be caught first. 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 "one" is printed. Compilation fails saying NullPointerException has already been caught. "null pointer exception" is printed. "exception" is printed. None of these "one" is printed. Compilation fails saying NullPointerException has already been caught. "null pointer exception" is printed. ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions Determine output of the following program code?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); }} Error occured None of these 3.5 Compilation Error 3 Error occured None of these 3.5 Compilation Error 3 ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions What will be the output of the following piece of code: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. "); }} There is a NullPointerException. This code will not compile, because in Java there are no pointers. There is a NullPointerException. There is an Exception. There is a NullPointerException. Everything went fine. There is a NullPointerException. This code will not compile, because in Java there are no pointers. There is a NullPointerException. There is an Exception. There is a NullPointerException. Everything went fine. 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"); } }} "doAdoBdoC" is printed "error" is printed "doCdoBdoA" is printed "doBdoAerror" is printed nothing is printed "doAdoBdoC" is printed "error" is printed "doCdoBdoA" is printed "doBdoAerror" is printed nothing is printed ANSWER DOWNLOAD EXAMIANS APP
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