JAVA Exceptions In which of the following package Exception class exist? java.lang java.file java.io java.net java.util java.lang java.file java.io java.net java.util 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 1 and 4 3 and 4 1 and 2 2 and 4 2 and 3 1 and 4 3 and 4 1 and 2 2 and 4 ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions The class at the top of exception class hierarchy is ................. Exception ArithmeticException Throwable Object Exception ArithmeticException Throwable Object ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions 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(); }} Two One Two None of these Compilation Error One Two One Two None of these Compilation Error One 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? ArrayIndexOutOfBoundsException IllegalStateException ClassCastException None of these NumberFormatException ArrayIndexOutOfBoundsException IllegalStateException ClassCastException None of these NumberFormatException 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"); } }} Compilation fails saying NullPointerException has already been caught. None of these "exception" is printed. "one" is printed. "null pointer exception" is printed. Compilation fails saying NullPointerException has already been caught. None of these "exception" is printed. "one" is printed. "null pointer exception" is printed. ANSWER DOWNLOAD EXAMIANS APP
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