Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
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Expert Solution & Answer
Chapter 9.3, Problem 27STQ
Explanation of Solution
Given program segment:
//Try block
try
{
//Assign a value to the variable
int n = 7;
//Checking if value is greater than 0
if(n > 0)
//Throwing a predefined exception
throw new Exception();
//Checking if n is lesser than 0
else if (n < 0)
//Throwing user-defined exception
throw new NegativeNumberException();
//Else
else
//Print Hello
System.out.println("Hello!");
}
//Catch the user-defined exception
catch (NegativeNumberException e)
{
//Print the message
System...
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*This is a handout from my class that I'm having trouble with I tried YouTube videos and I'm still lost please explain the answers as simply as you can and thank you.*
A. Look over the following code fragment, give the output:
try {
method();
System.out.println("After the method call");
}
catch (Exception ex) {
System.out.println("Exception in main");
}
catch (RuntimeException ex) {
System.out.println("RuntimeException in main");
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static void method() throws Exception {
System.out.println(1 / 0);
}
B. Write the code to load an array. Use simple I/O (system.out.print, etc.) to get integer values from the user and load the array (loop?). Your code has the potential to generate 2 exceptions: 1) InputMismatch (research this) and 2) IllegalValueException (assume this exists). If the 1st occurs, change the input to be 99, warn the user and continue. The 2nd exception will occur when the user enters a 0; if this occurs, notify the user that a 0 has been entered, and change the input to…
ANSWER IN JAVA
Standard Output: Enter·side·length·of·square:Side·length·must·be·greater·than·0.↵
Define the class InvalidSideException, which inherits from the Exception class. Also define a Square class, which has one method variable -- an int describing the side length. The constructor of the Square class should take one argument, an int meant to initialize the side length; however, if the argument is not greater than 0, the constructor should throw an InvalidSideError. The Square class should also have a method getArea(), which returns the area of the square.Create a Driver class with a main method to test your classes. Your program should prompt the user to enter a value for the side length, and then create a Square object with that side length. If the side length is valid, the program should print the area of the square. Otherwise, it should catch the InvalidExceptionError, print "Side length must be greater than 0.", and terminate the program.
Using JavaFX, create a simple calculator application, like the following:
The operators is ( + : " addition process" , -:subtraction process", *:"multiplication process" , /:"division process" , C : "Clear" , H: "History");
Validate that the first number and second is a numeric value if it is not throwing an exception.
When clicking the operators (+, -, *, /): the result will display at the bottom, and stored in history.
When clicking C, clear the first, second number and the history.
When clicking H, the history will display at the bottom.
When the user click / and the second number is 0 throw an arithmetic exception.
Chapter 9 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 9.1 - Prob. 1STQCh. 9.1 - What output would the code in the previous...Ch. 9.1 - Prob. 3STQCh. 9.1 - Prob. 4STQCh. 9.1 - Prob. 5STQCh. 9.1 - Prob. 6STQCh. 9.1 - Prob. 7STQCh. 9.1 - Prob. 8STQCh. 9.1 - In the code given in Self-Test Question 1,...Ch. 9.1 - In the code given in Self-Test Question 1,...
Ch. 9.1 - Prob. 11STQCh. 9.1 - Prob. 12STQCh. 9.1 - Prob. 13STQCh. 9.1 - Prob. 14STQCh. 9.2 - Prob. 15STQCh. 9.2 - Prob. 16STQCh. 9.2 - Prob. 17STQCh. 9.2 - Prob. 18STQCh. 9.2 - Prob. 19STQCh. 9.2 - Prob. 20STQCh. 9.2 - Suppose that, in Self-Test Question 19, we change...Ch. 9.2 - Prob. 22STQCh. 9.2 - Prob. 23STQCh. 9.3 - Prob. 24STQCh. 9.3 - Prob. 25STQCh. 9.3 - Prob. 26STQCh. 9.3 - Prob. 27STQCh. 9.3 - Prob. 28STQCh. 9.3 - Repeat Self-Test Question 27, but change the value...Ch. 9.3 - Prob. 30STQCh. 9.3 - Prob. 31STQCh. 9.3 - Prob. 32STQCh. 9.3 - Consider the following program: a. What output...Ch. 9.3 - Write an accessor method called getPrecision that...Ch. 9.3 - Prob. 35STQCh. 9.4 - Prob. 36STQCh. 9.4 - Prob. 37STQCh. 9.4 - Prob. 38STQCh. 9 - Write a program that allows students to schedule...Ch. 9 - Prob. 2ECh. 9 - Prob. 3ECh. 9 - Prob. 4ECh. 9 - Prob. 5ECh. 9 - Write code that reads a string from the keyboard...Ch. 9 - Create a class Rational that represents a rational...Ch. 9 - Prob. 9ECh. 9 - Suppose that you are going to create an object...Ch. 9 - Revise the class RoomCounter described in the...Ch. 9 - Prob. 12ECh. 9 - Write a class LapTimer that can be used to time...Ch. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Prob. 3PCh. 9 - Write a program that uses the class calculator in...Ch. 9 - Prob. 3PPCh. 9 - Prob. 7PPCh. 9 - Suppose that you are in change of customer service...Ch. 9 - Write an application that implements a trip-time...
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