Java Programming, Loose-leaf Version
8th Edition
ISBN: 9781337685917
Author: Joyce Farrell
Publisher: Cengage Learning
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Chapter 12, Problem 8RQ
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In object-oriented
Hence, the correct answer is option “B”.
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Question (1): Write a program that asks the user to enter an integer greater than zero and store it in a variable called “n”. Then it calculates the final value that will be stored in a variable called “s” according to the following equation And add an exception when the user enters any value other than integer shows the message “You entered non integer value, please try again.”, and let the user to enter a new value.Example 1Enter an integer: 4S = -2.0Example 2Enter an integer: aYou entered non integer value, please try again.Enter an integer: 4S = -2.0
# Split input into 2 parts: name and ageparts = input().split()name = parts[0]while name != '-1':# FIXME: The following line will throw ValueError exception.# Insert try/except blocks to catch the exception.age = int(parts[1]) + 1print('{} {}'.format(name, age))# Get next lineparts = input().split()name = parts[0]
How to fix this code with try except block
Q1) The following snippet of code inputs an integer and outputs it:int num=0;Scanner kbd = new Scanner(System.in);num = kbd.nextInt();System.out.println(num);Run this program but enter text instead of an integer. The programshould crash and tell you what kind of exception was thrown by thenextInt method. Wrap this code inside a try/catch block where youcatch the exception that is thrown. Add a loop so the user must enterthe number again if text is entered.Q2) The following class maintains an account balance and returns a special error code.public class Account{private double balance;// returns new balance or -1 if errorpublic double deposit(double amount){if (amount > 0)balance += amount;elsereturn -1; // Code indicating errorreturn balance;}}Rewrite the class so that it throws appropriate exception instead ofreturning -1 as an error code. Write test code that attempts to deposit invalid amounts and catches the exceptions that are thrown
Chapter 12 Solutions
Java Programming, Loose-leaf Version
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- C++ You did this way back in Unit 1! But now all of your RomanNumber code is wrapped up in a class, so the "main" program is short and sweet. As before, write a program that accepts entries from the user. If it's an integer, convert to Roman Number and display. If it's a Roman Number, convert to integer and display. If it's neither, thrown an exception and continue to process The action to take here will be to display an error message If the entry is 0 or O (The digit 0 (zero) or the letter O) exit and state how many conversions were done of each type (integer to Roman and Roman to integer) and how many exceptions were thrown. As I said, the main program will be short and sweet. Provide your .cpp code and a screen shot of your program in action. Enter twelve conversions - four integer to Roman, four Roman to integer, and two of each in which the input is invalid so that I can see the exceptions. The thirteenth and final entry will be 0 or O.arrow_forwardIn Java when a method throws a checked Exception, what must we always do when calling that method? A. Make sure to declare the method as static. B. Put it inside a try/catch block. C. Set the permission level of the method to private. D. Check our input, and if it will be bad input we must throw an exception before calling the method.arrow_forwardCreate an application that will catch an exception using the try catch block. Use Java as the languagearrow_forward
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