import java.util.Scanner;
//I had to use scanner in this program because I had to create objects that were in the Scanner class, such as in row 16.
* This program confirms a password typed into a *
* console window *
*/
public class Homework1 {
public static void main(String[] args) {
//Needs to add a scanner to the program to continue on
Scanner keyboard = new Scanner(System.in);
[code]....
Now I need to create a second version of this program that uses JOptionPane to get the inputs from the user and show the output!
Use Java to write and run a simple console-window program for checking passwords. The program must satisfy the following requirements:
-When the program runs, it should first print its name, e.g., Password Checker -The program should next prompt the user to enter a username, e.g.,
Please enter your username:
-The program should next prompt the user to enter a password, e.g., Please enter your password: - If the user enters a correct password, i.e., one that matches an internal secret password, the program responds. You are approved by access control!, and quits. -If the user enters an incorrect password, the program responds
Try again: -If the user enters a correct password matching the secret one, the program responds. You are approved by access control!, and quits. -If the user enters an incorrect password, the program responds
package class1; import java.util.Scanner; public class class1 { public static void main(String[] args) { // TODO Auto-generated method stub
I am trying to write a password checker program and thats the error i get. (the final error!) but this one i dont know how to fix. here is my code.
/* Text Text text */
import java.util.Scanner; // Imports the Scanner class to get Keyboard Inputs class PriceRichardChapter5Test { public static void main (String [] args) { String Password; // Creates the Password variable
Iv created an array list which contains people and attributes such as user id, username etc. It works fine for the most part. It allows the user to enter a name into the system. If the name entered matches a name stored in the array list then it will display that user, its id, name and password. I need to implement a password strength checker; but i am struggling.
First off; i need a method that will determine how strong a password is. I then need to find a means of how to output the result of this, outputting it alongside the other outputted attributes: id, name and password.
Here is what i have attempted so far, but to be honest its probably completely different to the exact strength check and way that i want the result to be displayed. I know that the code below is a good start, but its not close to implementing the code in a way that the password strength result can be outputted in the arraylist after a search for a user and their password is made.
private int checkPasswordStrength2(String passw) { int strengthCount=0; String[] partialRegexChecks = { ".*[a-z]+.*", // lower ".*[A-Z]+.*", // upper ".*[d]+.*", // digits ".*[@#$%]+.*" // symbols }; if (passw.matches(partialRegexChecks[0])) {
[Code] .....
I just really want to get this done. Iv looked for solutions online; but they implement a password strength checker much differently to how mine needs to work from what i can tell.
I am developing a number of Data Structures in Bluej. Iv created a nice little arraylist program, and want to add a password generator to this program. People are already prestored within the arraylist, and contain attributes such as ID, name, password, etc. I can search a persons name within the list and then view their ID, password, and encrypted password. I want to add a field which will show password strength, bare in mind the password is already stored within the program and will not be entered via the user.
I understand that this could be done via a regular expression, or using some count method where certain goals/sets of characters increase the count which determine strength.
My homework is asking me to write a program that prompts the user to enter a password and displays "valid password" if the rule is followed or "invalid password"
Sample enter a string for password: wewewx valid password
It's being graded on Design of my GUI Dialog box User friendliness Creativity
My current issues with the current code I have written is simply the password doesn't work unless it starts with 2 digits, the other order it displays as wrong. and I have no idea how to add a GUI.
I have a checker game already and I am trying to make an AI opponent even if not so Intelligent as long as it can move chips on its own until the game is over.
I am new to JAVA GUI programming and was wondering how you go about getting and testing if a password field text equals something. For example, if the password equals "password" then do something.
I can't get the code to compile for the driver every time i get an error message saying
SudokuCheckerTest.java:28: error: cannot find symbol foo.displayGrid(grid); ^ symbol: variable grid location: class SudokuCheckerTest SudokuCheckerTest.java:29: error: cannot find symbol foo.getGrid(grid);
[Code] .....
4 errors
Java Code :
import java.util.Scanner; public class SudokuChecker{ public SudokuChecker(){ // displays intro code and initializes the array grid as well as using method calls. Scanner in = new Scanner(System.in); int [][] grid = new int [4][4]; displayGrid(grid);
I'm trying to make a checkers game in Java and I managed to make my grid with it's button on it. Each button which has a pawn on it has it's own actionListener which was all done in the loop as I made the grid as shown in my code below. Now I have a huge problem. I don't know how to handle the move, check if move is legal, jump and double jump. Here is the code I wrote so far. I wrote it in such a way that all the buttons which have a pawn on them can perform the same action but then I'm completely stuck.
import java.awt.event.*; import javax.swing.*; import java.awt.*; public class CheckerBoard extends JPanel{ public static final int WIDTH = 530; public static final int HEIGHT = 530; private JButton[][] grids;
Is there anyway I can write a do while statement for this program. I haven't seen anyway to do it anywhere.
Java Code:
import javax.swing.JOptionPane; public class History { public static void main(String[] args) { //First Question: What is the capital of Mexico? String[] question1 = {"Mexico City", "Paris" //The choseable answers are made using String ,"Washington D.C", "Tokyo"};
import java.util.Scanner; import javax.swing.JOptionpane; public class Project { public static void main(String[] args) { Scanner input = new Scanner(System.in);
[code]...
This is the Error that i get in console!"Exception in thread "main" java.lang.Error: Unresolved compilation problem: JOptionPane cannot be resolved at Project.main(Project.java:10)"
Here's My code to create multiple JTextfields in a Single Option Pane.
My goal is simple.
Take some input from the user and then store it a TEXT File.
package printer; import java.awt.Toolkit; import java.io.BufferedWriter; import java.io.FileWriter; import java.io.IOException; import javax.swing.*; public class Database { JTextField name = new JTextField(); JTextField roll = new JTextField();
I am writing a program that has to do with ciphers and cipher shifts. The program itself works fine, but I am having trouble printing out the answers to JOptionPane. I know the basics of JOptionPane, but my problem is this:
Majority of my program takes place in a for loop, and resolves the cipher (it is a basic cipher program) 1 digit at a time. So, only the last DIGIT (I don't know how to convert a digit to a CHAR in JOptionPane) is printed to JOptionPane. Here is my code:
public static void main(String[] args) { String cipher = JOptionPane.showInputDialog(null, "Please enter a sentence or word that you wish to encode or decode. This program uses " + " a basic cipher shift."); int answer = 0; String upperCase = cipher.toUpperCase(); char[] cipherArray = cipher.toCharArray();
I am supposed to be doing a class assignment that calculates the area of a triangle and outputs with JOptionPane. I was able to fix some errors, but it's uncovering more errors.Here is my code:
public class Area { public static void main (String [] args) { double a, b, c; //Input sides of triangle double x; //Perimeter of triangle double area; //Area of triangle StringTokenizer st;
Just wondering if there was a way to change a JOptionPane's display message dependent on the button the user is hovering over. I.e.: Hover option1, shows one message; hover option2, shows a different message, etc.. but within the same JOptionPane (not showing a new one).
import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import javax.swing.ImageIcon; import javax.swing.JOptionPane; public class Main
[Code] ....
I cant custom my own icon. There is no error. But the image that I tried to show in the joptionpane is not showing. What should i do?
I am a beginner in Java and I am currently learning about JOption pane.Using Strings I am accepting an input from the user and by using the Interer.ParseInt(variable) option I am able to multiply this two strings using the code below.
String Length; Length = JOptionPane.showInputDialog("Enter the Length"); String Breadth; Breadth = JOptionPane.showInputDialog("Enter the Breadth"); System.out.println(" Area is " + (Integer.parseInt(Breadth) * Integer.parseInt(Length))); System.exit(0);
How Do I make my code accept Decimal values. E.g. My Code should accept 10.02 as Length and 20.42 as Breadth and give the product a Decimal.
Is it possible to make it so that when the popup box comes up I will only be able to click on the box? For example, I would be browsing the internet while the program is running and then the box pops up and I am forced to answer the question before I can click on anything else. If it is possible, how do I do it?
I am quite familiar with using JOptionPane and its various displayXDialog() methods and reasonably familiar with changing fonts.
I have a JOptionPane.displayMessageDialog() that is working fine but I decided to make the font larger.
I found an example from which I coded:
Font font = UIManager.getFont("OptionPane.font"); UIManager.put("OptionPane.font", new Font(font.getName(), font.getStyle(), 24)); font = UIManager.getFont("OptionPane.font"); JOptionPane.showMessageDialog(this, "Welcome to Mover", "About Mover", -1); // no icon
After the UIManager.getFont() call after the UIManager.put() call, font shows the new font size of 24, but the showMessageDialog() dialog still has the default font.
And yes I understand that, when this works, it will affect every JOptionPane in my program.
I also tried:
Font font = UIManager.getFont("OptionPane.font"); JOptionPane message = new JOptionPane("Welcome to Mover", JOptionPane.INFORMATION_MESSAGE); JDialog dlg = message.createDialog("About Mover");
[Code] ....
This gave me a dialog with the default font and an unwanted icon.
So I tried
// both Font font = UIManager.getFont("Dialog.font"); // and Font font = UIManager.getFont("JDialog.font");
and planned to use that font in my setFont() call but font was null.
I have to make an application called miles to meters that converts miles to meters that asks for user input through joption pane and the output can be eather system.out.println or joption pane, I found the code i need but it uses buffered reader for input not joption pane. Here is the source code
import java.io.*; import java.util.*; class MetersToMiles{ public static void main (String[] args)throws Exception{ // 1 meters = 0.00062137119 miles;
import javax.swing.*; public class Swag { public static void main ( String[] args) { String name = JOptionPane.showInputDialog("What is your name?"); String input = JOptionPane.showInputDialog("How old are you?"); int age = Integer.parseInt(input); System.out.print(" Hello, " +name); System.out.println("Next year you'll be " +(age+1)); } }
And run it, it ends up looking like thisH1765.png I'm running windows 8, the latest x64 JDK, no type of custom font or anything that I know of. I've run this through eclipse, CMD, and uninstalled and reinstalled Java. I tried using another example of JOptionPane usage from a site and running it, still looks the same.
