What happen in case of multiple catch blocks? The superclass exception cannot caught first. Either super or subclass can be caught first. None of these The superclass exception must be caught first. TRUE ANSWER : ? YOUR ANSWER : ?
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 3 Compilation Error TRUE ANSWER : ? YOUR ANSWER : ?
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. } 2 3 3 1 3 1 2 3 1 TRUE ANSWER : ? YOUR ANSWER : ?
What will be the output?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(); }} None of these Compilation Error One One Two Two TRUE ANSWER : ? YOUR ANSWER : ?
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"); } }} inFinallyBlock inCatchBlock The program will return without printing anything inCatchBlock inFinallyBlock TRUE ANSWER : ? YOUR ANSWER : ?
The class at the top of exception class hierarchy is ................. ArithmeticException Exception Throwable Object TRUE ANSWER : ? YOUR ANSWER : ?
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? ArrayIndexOutOfBoundsException IllegalStateException ClassCastException NumberFormatException None of these TRUE ANSWER : ? YOUR ANSWER : ?
Which keyword is used to explicitly throw an exception? throw throwing catch try TRUE ANSWER : ? YOUR ANSWER : ?
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 printName() Value-A None of these Name-B Compilation succeed but no output TRUE ANSWER : ? YOUR ANSWER : ?
Given the following piece of code:class SalaryCalculationException extends Exception{}class Person{ public void calculateSalary() throws SalaryCalculationException{ //... throw new SalaryCalculationException(); //... }}class Company{ public void paySalaries(){ new Person().calculateSalary(); }}Which of the following statements is correct?1. This code will compile without any problems.2. This code will compile if in method paySalaries() we return a boolean in stead of void.3. This code will compile if we add a try-catch block in paySalaries().4. This code will compile if we add throws SalaryCalculationException in the signature of method paySalaries(). 1 and 4 1 and 2 2 and 4 3 and 4 2 and 3 TRUE ANSWER : ? YOUR ANSWER : ?