JAVA Exceptions In which of the following package Exception class exist? java.lang java.file java.util java.io java.net java.lang java.file java.util java.io java.net 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"); } }} "doBdoAerror" is printed "error" is printed "doCdoBdoA" is printed nothing is printed "doAdoBdoC" is printed "doBdoAerror" is printed "error" is printed "doCdoBdoA" is printed nothing is printed "doAdoBdoC" is printed 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 None of these One Compilation Error One Two Two None of these One Compilation Error One Two ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions The class at the top of exception class hierarchy is ................. Exception Object Throwable ArithmeticException Exception Object Throwable ArithmeticException 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(). 3 and 4 1 and 2 2 and 4 1 and 4 2 and 3 3 and 4 1 and 2 2 and 4 1 and 4 2 and 3 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"); } }} "one" is printed. "exception" is printed. "null pointer exception" is printed. None of these Compilation fails saying NullPointerException has already been caught. "one" is printed. "exception" is printed. "null pointer exception" is printed. None of these Compilation fails saying NullPointerException has already been caught. ANSWER DOWNLOAD EXAMIANS APP
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