solve: **Understanding and Implementing Custom Exceptions in Java**In a particular business, all documents are designated by one-character codes that indicate their classification: - **U** for Unclassified- **C** for Confidential- **P** for ProprietaryThese codes are prefixes for file names, preceded by an underscore. Example file names include `U_QuarterOneData.txt` or `P_Numbers.txt`.### TaskThe goal is to create an exception class called `InvalidDocumentCodeException`. This custom exception will be triggered when a document's designation does not match U, C, or P.### Implementation- **Driver Class**: Implement this exception in a Driver class that reads file names from the user.- When the program finds a file with an invalid code, it raises `InvalidDocumentCodeException`.- Catch this exception, output "This document has an invalid code.", and continue processing the remaining files.- The program terminates when the user inputs "DONE".### Example Execution**Sample Run #1:** Execution of the program```plaintextjava DriverEnter: file:name:U_JuneData.txtEnter: file:name:P_JulyData.txtEnter: file:name:C_AugustData.txtEnter: file:name:K_SeptemberData.txtThis document has an invalid code.Enter: file:name:C_OctoberData.txtEnter: file:name:DONE```### ExplanationThe sample run demonstrates entering multiple file names. When a file name starting with an invalid designation ('K_SeptemberData.txt' here, which starts with 'K') is detected, it triggers the exception and prints the error message. The program continues to request file names until "DONE" is entered, at which point it stops processing.This exercise is designed to emphasize the utility and implementation of custom exceptions to handle specific cases in Java programming.

Solution- The provided Java code requests the user's input on the file names. Code- import…

signation starting with either U, C, or P, standing for unclassified, nfidential, or proprietary. These codes are put in the names of the files, the very beginning, followed by an underscore. example, a file might be named U_QuarterOneData.txt or P_Numbers.txt eate an exception class called InvalidDocumentCodeException, designed to be own when the designation for a document is not U, C, or P. plement this exception in a Driver class (in the same file) that asks the er for the names of files. When the program encounters a file with an invalid signation, it should throw an Invalid DocumentCodeException, catch it, and ndle it by printing, "This document has an invalid code." Then, it should ntinue processing files.

signation starting with either U, C, or P, standing for unclassified, nfidential, or proprietary. These codes are put in the names of the files, the very beginning, followed by an underscore. example, a file might be named U_QuarterOneData.txt or P_Numbers.txt eate an exception class called InvalidDocumentCodeException, designed to be own when the designation for a document is not U, C, or P. plement this exception in a Driver class (in the same file) that asks the er for the names of files. When the program encounters a file with an invalid signation, it should throw an Invalid DocumentCodeException, catch it, and ndle it by printing, "This document has an invalid code." Then, it should ntinue processing files.

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

See similar textbooks

Similar questions

Q\Find the maximum and minimum values of. f (x, y.z) = xyz subject to the constraint 2 x + 9y² + z that x > 0 for this problem. = 4 Assume Why is this assumption needed?
Explain the difference between a P problem and an NP problem (aka P vs. NP)
There are three financial aid counselors. If a student’s last initial is from A – H, let them know that their counselor is Jon Stewart. If a student’s last initial is from I – Q, let them know that their counselor is Chelsea Handler. If a student’s last initial is from R – Z, let them know that their counselor is Brian Williams.Ask student for the FICO score, if it’s less than 660 tell that this student cannot have a loan.
Solve this with complete solution please
pleaseee solve question 2 please
Which type of best first search algorithm was used to predict the closeness of the end of path and its solution? a) Greedy BFS b) Divide and Conquer c) Heuristic BFS d) Combinatorial
If A moves first, who will win a 400+1 game? What is the first move?
Example 4: Solve i) у" - 2у' + у %3D Зсохх + 2sinх.
Question 2 (1 point) Consider the following sequence: aj = 2, and an = 2an-1 + 1, for n > 1. %3D What is the value of a6? (Enter your answer as a single integer.)
Question 2: Three players (A, B and C) play the Card Game. Each player has two cards. The three players have the following card values: Player (A): 5 and 7 Player (B): 4 and 2 Player (C): 8 and 1 Player A starts by putting one card then Player B puts one card then player C puts one card and the game is over. The score of player A (utility value for A) is computed by the following formula: Score(A) = card value(A) - card value(B) - card value(C). The score of player B (utility value for B) is computed by the following formula: Score(B) = card value(B) - card value(A) - card value(C). The score of player C (utility value for C) is computed by the following formula: Score(C) card value(C) - card value(A) - card value(B). a) Construct the corresponding Game Tree. Then find the utility values of all nodes. b) Which player will win the game? c) Show how can the losers make the winner lose the game. What do you note?