JAVA Exceptions The class at the top of exception class hierarchy is ................. Exception Throwable Object ArithmeticException Exception Throwable Object ArithmeticException ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions 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(); }} None of these printName() Compilation succeed but no output Name-B Value-A Compilation fails-Exception NullPointerException is not compatible with throws clause in None of these printName() Compilation succeed but no output Name-B Value-A Compilation fails-Exception NullPointerException is not compatible with throws clause in ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions 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. } 1 2 3 3 1 3 1 2 3 1 2 3 3 1 3 1 2 3 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 None of these NumberFormatException ClassCastException IllegalStateException ArrayIndexOutOfBoundsException None of these NumberFormatException ClassCastException IllegalStateException ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions Which of the following blocks execute compulsorily whether exception is caught or not. throw finally throws catch throw finally throws catch 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"); } }} "error" is printed "doAdoBdoC" is printed nothing is printed "doBdoAerror" is printed "doCdoBdoA" is printed "error" is printed "doAdoBdoC" is printed nothing is printed "doBdoAerror" is printed "doCdoBdoA" is printed ANSWER DOWNLOAD EXAMIANS APP
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