C++ How to Program (10th Edition)
10th Edition
ISBN: 9780134448237
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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(Throwing Exceptions from a catch) Suppose a program throws an exception and the appropriate exception handler begins executing. Now suppose that the exception handler itself throwsthe same exception. Does this create infinite recursion? Write a program to check your observation.
(Creating Custom Exception Class) Write a Password class that stores a password string. Passwords must contain at least seven alpha-numeric characters, with at least one letter and one digit. Also write an InvalidPasswordException class that extends Exception. The Password constructor should throw an InvalidPasswordException, which should report an appropriate message based on a given string (e.g. if the string contains no digits, the exception should report this fact). Write a GUI program to prompt the user to enter a password and report an InvalidPasswordException if an invalid password is entered. Please teach and help me how to deisgn the program based on the two files given .Some sample screenshots are shown below:
InvalidPasswordException.java
public class InvalidPasswordException extends Exception{ public InvalidPasswordException (String errMsg){ super(errMsg); } }
Password.java
public class Password {private String passwordstr;
public…
[Access Control Policy]: A computer system usually implements the exception
handling mechanism. Like the interrupt handling mechanism, the original program
flow will be stopped until the exception is handled. For example, when a program is
calculating c=a/b, and for some reason b was set to 0, the program will encounter
the "Division by Zero" exception. The control will be given to the exception handler,
and the recovery action could be "report only", "return to the next instruction",
"purge the program", etc., based on the severity of the problem. From the abov
information, we can conclude:
A computer system can integrate both Discretionary Access Control (DAC) and Mandatory
Access Control (MAC) security policies
An administrator can inhibit the exception handling
The exception handling mechanism is like the Mandatory Access Control security policy, no
matter which user caused the exception (even the administrator), the program should be
stopped, and the control should be given to the…
Chapter 17 Solutions
C++ How to Program (10th Edition)
Ch. 17 - (Exceptional Conditions) List various exceptional...Ch. 17 - (Catch Parameter) Under what circumstances would...Ch. 17 - (throw Statement) A program contains the statement...Ch. 17 - (Exception Handling vs. Other Schemes) Compare and...Ch. 17 - Prob. 17.19ECh. 17 - Prob. 17.20ECh. 17 - Prob. 17.21ECh. 17 - (Catching Derived-Class Exceptions) Use...Ch. 17 - (Throwing the Result of a Conditional Expression)...Ch. 17 - Prob. 17.24E
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