JAVA Exceptions The class at the top of exception class hierarchy is ................. ArithmeticException Exception Object Throwable ArithmeticException Exception Object Throwable 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 Name-B printName() Value-A Compilation succeed but no output Compilation fails-Exception NullPointerException is not compatible with throws clause in None of these Name-B printName() Value-A Compilation succeed but no output Compilation fails-Exception NullPointerException is not compatible with throws clause in ANSWER DOWNLOAD EXAMIANS APP
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 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 nothing is printed "doAdoBdoC" is printed "doCdoBdoA" is printed "error" is printed "doBdoAerror" is printed nothing is printed "doAdoBdoC" is printed "doCdoBdoA" is printed "error" is printed 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 Compilation Error true false None of these Compilation Error true false ANSWER DOWNLOAD EXAMIANS APP
JAVA Exceptions Which of the below statement is/are true about Error?A. An Error is a subclass of Throwable.B. An Error is a subclass of Exception.C. Error indicates serious problems that a reasonable application should not try to catch.D. An Error is a subclass of IOException. A and B B and C A and D A and C B and D A and B B and C A and D A and C B and D ANSWER DOWNLOAD EXAMIANS APP
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