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. 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. "one" is printed. None of these "null pointer exception" is printed. ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions The class at the top of exception class hierarchy is ................. Exception ArithmeticException Object Throwable Exception ArithmeticException Object Throwable ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions 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(). 2 and 3 2 and 4 1 and 2 1 and 4 3 and 4 2 and 3 2 and 4 1 and 2 1 and 4 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions Which keyword is used to explicitly throw an exception? try catch throw throwing try catch throw throwing ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions try{ File f = new File("a.txt");}catch(Exception e){}catch(IOException io){}Is this code create new file name a.txt ? false Compilation Error None of these true false Compilation Error None of these true ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions Which keyword is used to specify the exception thrown by method? throws throw catch finally throws throw catch finally ANSWER DOWNLOAD EXAMIANS APP
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