Java Programming, Loose-leaf Version
8th Edition
ISBN: 9781337685917
Author: Joyce Farrell
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 7, Problem 4PE
Program Plan Intro
Program to display valid and invalid password
Program plan:
Filename: “ValidatePassword.java”
- Define the “ValidatePassword” class
- Declare the required variables and set the values.
- Create an object for scanner class.
- Prompt the user to enter the password.
- Read the length of the string and store it in a variable.
- Using, if…else condition check whether the string contains two uppercase, 3 lowercase and one digit.
- If the condition is satisfied, print the string as valid password, else print as invalid password.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Write an application named, Lab14.java. This application will do the following: 1. Display an introductory message 2. Choose a random word from the file, wordlist.txt, and display it 3. Disguise the selected word, and display it 4. Ask the user whether to continue, i.e., whether to repeat steps 2, 3, and 4, or quit the application Once the user chooses to stop the application: 5. Display the total number of vowels hidden 6. Display the total number of consonants hidden 7. Display termination message The user will be asked whether to continue playing and will indicate that another game is to be played by answering ‘y’ or ‘Y’ in response to the question, “Want to play again?” asked by the program after displaying each chosen word and its disguised version. If the user’s response is any character other than ‘y’ or ‘Y’, the totals are displayed and then the application termination message is displayed. See examples below. About randomly choosing a word from the file, wordlist.txt, found on…
Write an application that handles a student report card. The application shall save the marks of computer science, math and English. Each subject has a total of 50 marks. If a student obtains at least 75/150 marks, an event will trigger and show a congratulation message on passing the exam. Otherwise, it will display an “F” grade.
Write an application that allows a user to enter any number of student test scores until the user enters 999. If the score entered is less than 0 or more than 100, display an appropriate message and do not use the score. After all the scores have been entered, display the number of scores entered, the highest score, the lowest score, and the arithmetic average. Save the file as TestScoreStatistics.cpp.
Chapter 7 Solutions
Java Programming, Loose-leaf Version
Knowledge Booster
Similar questions
- For Java Write an application that prompts the user for a password that contains at least two uppercase letters, at least three lowercase letters, and at least one digit. Continuously reprompt the user until a valid password is entered. Display Valid password if the password is valid; if not, display the appropriate reason(s) the password is not valid as follows: The password did not have enough of the following: uppercase letters lowercase letters digitsarrow_forwardCreate an application that allows you to play the Rock-Paper-Scissors game against the computer. When played between two people, each chooses one of three possibilities (typically indicated by a hand gesture) at the same moment, and the winner is chosen.Rock defeats Scissors, Scissors defeats Paper, and Paper defeats Rock in the game. The programme should choose one of the three alternatives at random (without exposing it) and then prompt the user to choose. The programme then displays both options and publishes a statement stating whether the user won, the machine won, or it was a tie. Continue to play till the user decides to stop. The number of user wins, losses, and ties is then printed.arrow_forwardCreate an application that lets the user play the game of Rock, Paper, Scissors against the computer. The program should work as follows:1. When the program begins, a random number in the range of 1 through 3 is generated. If the number is 1, then the computer has chosen rock. If the number is2, then the computer has chosen paper. If the number is 3, then the computer has chosen scissors. (Do not display the computer’s choice yet.)2. The user selects his or her choice of rock, paper, or scissors. To get this input you can use Button controls, or clickable PictureBox controls displaying some of the artwork that you will find in the student sample files.3. The computer’s choice is displayed.4. A winner is selected according to the following rules:• If one player chooses rock and the other player chooses scissors, then rock wins. (Rock smashes scissors.)• If one player chooses scissors and the other player chooses paper, then scissors wins. (Scissors cuts paper.)• If one player chooses…arrow_forward
- . Write an application for a college’s admissions office. Prompt the user for a student’s numeric high school grade point average (for example, 3.2) and an admission test score from 0 to 100. Display the message “Accept” if the student has any of the following: A grade point average below 3.0 and an admission test score of at least 80 If the student does not meet either of the qualification criteria, display “Reject”. Save the file as Admission.java.arrow_forwardWrite a java application that handles a student report card. The application shall save the marks of computer science, math and English. Each subject has a total of 50 marks. If a student obtains at least 75/150 marks, an event will trigger and show a congratulation message on passing the exam. Otherwise, it will display an “F” grade.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- EBK JAVA PROGRAMMINGComputer ScienceISBN:9781337671385Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENTEBK JAVA PROGRAMMINGComputer ScienceISBN:9781305480537Author:FARRELLPublisher:CENGAGE LEARNING - CONSIGNMENTProgramming Logic & Design ComprehensiveComputer ScienceISBN:9781337669405Author:FARRELLPublisher:Cengage
- Microsoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781305480537
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Programming Logic & Design Comprehensive
Computer Science
ISBN:9781337669405
Author:FARRELL
Publisher:Cengage
Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,