4. Reading the program and write the running results. public class ExceptionDemo{ public static void main(String args[ D{ int i = 0. j= 1, k; try{ k =j/i; }catch(ArithmeticException e){ System.out.println("Arithmetic Exception"); }catch (Exception e){ System.out.printin("Exception"); }finally { System.out.println("Finally"); } The above running results:

4. Reading the program and write the running results. public class ExceptionDemo{ public static void main(String args[ D{ int i = 0. j= 1, k; try{ k =j/i; }catch(ArithmeticException e){ System.out.println("Arithmetic Exception"); }catch (Exception e){ System.out.printin("Exception"); }finally { System.out.println("Finally"); } The above running results:

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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--------------HW1_P1_INCOMPLETE.JAVA CODE GIVEN____ public class Hw1_part1 { public static void stats(int[] a) {// complete this method}public static void subarray(int[] a, int from, int to) {// error check w/o using Java's exception handlingif (from < 0 || to >= a.length) {System.out.println("Index out of bound");return;}// complete this method}public static void main(String[] args) {// test int[] a = {15, 25, 10, 65, 30, 55, 65};System.out.println("\nGiven array is: " + Arrays.toString(a));stats(a);subarray(a, 1, 4);// test with other arrays} }
What will be the output of the following Java program? class exception_handling { public static void main(String args[]) { try { int a[] = {1, 2,3 , 4, 5}; for (int i = 0; i < 7; ++i) System.out.print(a[i]); } catch(ArrayIndexOutOfBoundsException e) { System.out.print("0"); } } } i) 12345 ii) 123450 iii) 1234500 iv) Compilation Error
EXPLAIN What is displayed when running the following program? Give reson why you got that answer.public class Test { public static void main(String[] args) {try {method();System.out.println("After the method call"); } catch (RuntimeException ex) {System.out.println("RuntimeException in main"); } catch (Exception ex) {System.out.println("Exception in main"); } }static void method() throws Exception {try {String s ="abc";System.out.println(s.charAt(3));}catch (RuntimeException ex) {System.out.println("RuntimeException in method()"); } catch (Exception ex) {System.out.println("Exception in method()"); }}}
What would be the output of the following code?class X{public void display(){}}public class Solution{public static void main(String[] args) {X x = null;try {x.display();}catch(NullPointerException e) {System.out.print("There is a NullPointerException ");}catch(Exception e) {System.out.println("There is an Exception");}finally {System.out.println("Everything's fine");}}}A) There is a NullPointerException Everything’s fineB) Everything’s fineC) There is an Exception Everything’s fineD) Compilation error
5) What would be the output of the following code?public class Solution{public static void main(String args[]) { try {throw 5;}catch(int e) {System.out.print("Exception: " + e);}finally {System.out.print("Finally");}}}A) Exception: 5 FinallyB) FinallyC) Compilation errorD) Exception: 0 Finally
What is exception propagation? Give an example of a class that contains at least two methods, in which one method calls another. Ensure that the subordinate method will call a predefined Java method that can throw a checked exception. The subordinate method should not catch the exception. Explain how exception propagation will occur in your example.
Code completion and explain. public class X { public static void main(String [] args) { try { badMethod(); System.out.print("A"); } catch (RuntimeException ex) /* Line 10 */ { System.out.print("B"); } catch (Exception ex1) { System.out.print("C"); } finally { System.out.print("D"); } System.out.print("E"); } public static void badMethod() { throw new RuntimeException(); } }.
Compile and run the following Java programming code and observe the result. public class ExceptionCheck { public static void main(String args[]) { try{ System.out.println ("statement 1"); //System.out.println (5/0); System.out.println ("statement 2"); System.out.println ("statement 3"); } catch (ArithmaticException e) { // catch (FileNotFoundException e) System.out.println(10/2); //System.out.println(10/0); } System.out.println ("statement 4"); } } What can you say about the termination of the program in following cases? (a) If no exception in the program, (b) If statement 2 has the exception, (replace statement 2 with System.out.println (5/0);) (c) If corresponding catch block is not available, // catch (FileNotFoundException e) (d) If the exception occurs at the catch block, (remove comment //System.out.println(10/0);) (e) If the exception occurs at statement 4
-------------HW1_P1_INCOMPLETE.JAVA,,,,,,,,,,,,,,,,,,,,,,,,,, public class Hw1_part1 { public static void stats(int[] a) {// complete this method}public static void subarray(int[] a, int from, int to) {// error check w/o using Java's exception handlingif (from < 0 || to >= a.length) {System.out.println("Index out of bound");return;}// complete this method}public static void main(String[] args) {// test int[] a = {15, 25, 10, 65, 30, 55, 65};System.out.println("\nGiven array is: " + Arrays.toString(a));stats(a);subarray(a, 1, 4);// test with other arrays} }
void foo () { try { throw new Exception1 (); print (" A "); throw new Exception2 (); print (" B "); } catch ( Exception1 e1 ) { print " handler1 "; } print (" C "); throw new Exception2 (); } void main () { try { try { foo (); print (" D "); } catch ( Exception1 e1 ) { print " handler2 "; } print (" E "); } catch ( Exception2 e2 ) { print " handler3 "; } } Write down the output of the program and justify why it is the output. Instead of the “replacement” semantics of exception handling used in modern languages, a very early design of exception handling introduced in the PL/I language uses a “binding” semantics. In particular, the design dynamically tracks a sequence of “catch” blocks that are currently active; a catch block is active whenever the corresponding try block is active. What will be the output of the following program if the language uses the “binding” semantics? Give the reasoning for your answer.
I have to create a Java program that lets the user interact with it, so they can learn about exceptions. How do I let the user interact with a list of options and direct them to a catch statement? Here is my program so far: import java.util.Scanner;import java.io.*;import java.util.InputMismatchException; public class Exceptions{ public static void main(String[] args)throws IOException{ // declare variables char option = 'y'; //Arithhmetic & Array TEST int array[] = {10,20,30,40}; int num1 = 50; int num2 = 10; // Setting up scanner to get user data Scanner exc = new Scanner(System.in); // Main method (menu, try-catch block) // all within a loop try { } // I want to learn how an ArrayIndexOutOfBoundsException... catch(ArrayIndexOutOfBoundsException exception) { System.out.println("This exception is thrown when the array index that was entered is…
Answer the following questions based on your knowledge of exception handling: Why should you use exception handler in a java program? “Introducing exception handler in a program is not always good” – Explain this statement with an example. Rewrite the following inefficient java code snippet to handle the runtime exception without using the try-catch.