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 try{ File f = new File("a.txt");}catch(Exception e){}catch(IOException io){}Is this code create new file name a.txt ? None of these true false Compilation Error None of these true false Compilation Error 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? IllegalStateException None of these ArrayIndexOutOfBoundsException ClassCastException NumberFormatException IllegalStateException None of these ArrayIndexOutOfBoundsException ClassCastException NumberFormatException 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 "doCdoBdoA" is printed nothing is printed "doAdoBdoC" is printed "doBdoAerror" is printed "error" is printed "doCdoBdoA" is printed nothing is printed "doAdoBdoC" is printed "doBdoAerror" is printed 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(); }} Compilation fails-Exception NullPointerException is not compatible with throws clause in None of these Compilation succeed but no output Name-B Value-A printName() Compilation fails-Exception NullPointerException is not compatible with throws clause in None of these Compilation succeed but no output Name-B Value-A printName() ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions What happen in case of multiple catch blocks? The superclass exception must be caught first. Either super or subclass can be caught first. The superclass exception cannot caught first. None of these The superclass exception must be caught first. Either super or subclass can be caught first. The superclass exception cannot caught first. None of these ANSWER DOWNLOAD EXAMIANS APP
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