Java Exception MCQ - Quiz

Q: Which exception is thrown when divide by zero statement executes?

Q: What happen in case of multiple catch blocks?

Q: Which exception is thrown when an array element is accessed beyond the array size?

Q: What is the output of the following program code?

public class Test{
        public static void main(String args[]){
                try{
                        int i;
                        return;
                }
                catch(Exception e){
                        System.out.print("inCatchBlock");
                }
                finally{
                        System.out.println("inFinallyBlock");
                }
        }
}

Q: 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();
      }
}

Q: What will be the output of the following piece of code:

class Person{
    public void talk() {}
}
public class Test{
    public static void main(String args[]){
        Person p = null;
        try{
                p.talk();
        }
        catch(NullPointerException e){
                System.out.print("There is a NullPointerException. ");
        }
        catch(Exception e){
                System.out.print("There is an Exception. ");
        }
        System.out.print("Everything went fine. ");
    }
}

Q: What will be the result after compiling this code?

class SuperClass{
      public int doIt(String str, Integer... data)throws Exception{
            String signature = "(String, Integer[])";
            System.out.println(str + " " + signature);
            return 1;
      }
}

public class Test extends SuperClass{
      public int doIt(String str, Integer... data){
            String signature = "(String, Integer[])";
            System.out.println("Overridden: " + str + " " +signature);
            return 0;
      }

      public static void main(String... args){
            SuperClass sb = new Test();
            sb.doIt("hello", 3);
      }
}

Q: 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();
      }
}

Q: 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.

Q: What will be the result if NullPointerException occurs at line 2?

1.  try{
2.       //some code goes here
3.  }
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. }