Concept explainers
(a)
Exception handling:
In Java, the exception is an object used to signal the unexpected error occurred during a program execution.
- Exception is the error, which arises at run time and such errors can be handled in Java by exception handling.
Runtime exception:
- The runtime exceptions are indicated in RuntimeException class that defines the errors in programs such as out of bounds array, numeric errors, and so on.
- Some of runtime exceptions such as,
- ArithmeticException
- NullPointerException
- IndexOutOfBoundsException
- IllegalArgumentException
(b)
Explanation of Solution
Output of code:
The given code is,
//Class definition
class Test
{
// Main function
public static void main(String args[])
{
//Declare the array variable
int[] list = new int[5];
//Display the result
System.out.println(list[5]);
}
}
Explanation:
In the above code,
- In t...
(c)
Explanation of Solution
Output of code:
The given code is,
//Class definition
class Test
{
// Main function
public static void main(String args[])
{
//Declare the string variable
String s = "abc";
//Display the result
System.out.println(s.charAt(3));
}
}
Explanation:
In the above code,
- In the main function,
- Declare and i...
(d)
Explanation of Solution
Output of code:
The given code is,
//Class definition
class Test
{
// Main function
public static void main(String args[])
{
//Create the object for Object class
Object o = new Object();
//Initialize the object to string variable
String d = (String)o;
}
}
Explanation:
In the above ...
(e)
Explanation of Solution
Output of code:
The given code is,
//Class definition
class Test
{
// Main function
public static void main(String args[])
{
//Create the object for Object class
Object o = null;
//Convert "o" into string and then display it
System.out.println(o...
(f)
Explanation of Solution
Output of code:
The given code is,
//Class definition
class Test
{
// Main function
public static void main(String args[])
{
//Divide the 1.0 by 0 and then display the result
System.out.println(1.0/0);
}
}
Explanation:
In the above...
Want to see the full answer?
Check out a sample textbook solutionChapter 12 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version, Student Value Edition (11th Edition)
- please include comments for better understandingarrow_forwardNeed help with implementing of this program in C# by using Interface. Task: RenameFile Create an interface IUndoable to represent actions that can be reversed. Create a class that renames a file, and make it undoable.arrow_forwardSuppose an exception is thrown in a function. What are the three things the function can do?arrow_forward
- Java Foundations : Please provide code and explain. Thank you. Write the code segments in main( ) and in methodA( ) for the following scenario: main( ) passes methodA an int variable called a. methodA generates an exception, but does not deal with it, if a is not between 1 and 100.arrow_forwardIf an exception is raised and the program does not handle it with a try/exceptstatement, what happens?arrow_forwardAnswer and the outputarrow_forward
- Write the code in java and please don't plagiarize or copy from other sources write it on your own. Read carefully and follow the instructions in the question. Thank you.arrow_forwardWhen is it preferable to use Exception over if-else when dealing with error/invalid situations?in the language Javaarrow_forwardCreate a flowchart and modify the code. INSTRUCTION: Create a new class called CalculatorWithMod. This class should be a sub class of the base class Calculator. This class should also have an additional method for calculating the modulo. The modulo method should only be seen at the sub class, and not the base class! Include exception handling for instances when dividing by 0 or calculating the modulo with 0. You would need to use throw, try, and catch. The modulo (or "modulus" or "mod") is the remainder after dividing one number by another.Example: 20 mod 3 equals 2Because 20/3 = 6 with a remainder of 2 CODE TO COPY: #include <iostream> using namespace std; class Calculator{public:Calculator(){printf("Welcome to my Calculator\n"); } int addition(int a, int b);int subtraction(int a, int b);int multiplication(int a, int b);float division(int a, int b);}; int Calculator::addition(int a, int b){return (a+b);} int Calculator::subtraction(int a, int b){return (a-b);} int…arrow_forward
- For WriteToFile, describe what it doesarrow_forwardArithmetic Exception Arman has a shop where he provides stuff on rent. The whole payment system is computerised. A customer has to enter the item name, item type, cost, and the number of days they have taken the item for rent. The system then tells them the cost per day. But there is a problem with the machine that if the number of days entered is not an integer value then the system would crash. To handle this, Arman decided to upgrade the software and use exception handling in case the customer entered any invalid input it should display " Number of days x is invalid".Write a C++ program to find the item cost per day with the cost for n days given. The arithmetic exception has to be thrown if the n is less than or equal to zero.Strictly adhere to the Object-Oriented specifications given in the problem statement. All class names, member variable names, and function names should be the same as specified in the problem statement.The class Item has the following private data members.…arrow_forwardplease solve this important, thanks.arrow_forward
- C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology Ptr