JAVA Exceptions The class at the top of exception class hierarchy is ................. Exception Object ArithmeticException Throwable Exception Object ArithmeticException Throwable 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 None of these true Compilation Error false None of these true Compilation Error ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions Given the code. What is the result when this program is executed?public class Test{ static int x[]; static{ x[0] = 1; } public static void main(String args[]){ }} ExceptionInInitializerError is thrown IllegalStateException is thrown ArrayIndexOutOfBoundsException is thrown StackOverflowException is thrown None of these ExceptionInInitializerError is thrown IllegalStateException is thrown ArrayIndexOutOfBoundsException is thrown StackOverflowException is thrown None of these 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 4 2 and 3 1 and 4 3 and 4 1 and 2 2 and 4 2 and 3 1 and 4 3 and 4 1 and 2 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"); } }} "doCdoBdoA" is printed "error" is printed "doAdoBdoC" is printed "doBdoAerror" is printed nothing is printed "doCdoBdoA" is printed "error" is printed "doAdoBdoC" is printed "doBdoAerror" is printed nothing is printed ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions In which of the following package Exception class exist? java.net java.io java.util java.lang java.file java.net java.io java.util java.lang java.file ANSWER DOWNLOAD EXAMIANS APP