Write a subclass of BasicGame in which the computer asks the user to choose a whole number from 1 to 100, inclusive. The program then makes a number of guesses. After each guess, the user tells whether the guess is too high, too low, or exactly right. Once the computer "knows" what the correct number is, the computer tells the user the correct number and the number of guesses tried. Have the program ask the user after each game whether she wants to play again. Design the program so that it always guesses the correct answer by the seventh try at latest. Hint: Have two instance variables that keep track of the smallest and largest values that the guess could be (initially 1 and 100). After each wrong guess, update these smallest and largest values appropriately.This is what I have written for the assignment:
Java Code:
import javax.swing.JOptionPane;
public class GuessThatNumber extends BasicGame
{
private java.util.Random randy;
private int itsCompNumber;
private int itsHigh = 99;
private int itsLow = 1;
[code]...
The part I'm having trouble with is changing the high and low values based on the input of "too high" or "too low," which I tried in the continueGame method... When I test the game, the values for itsCompNumber aren't restricted by the user's input at all, and I'm not sure how to fix it.
Alright, I have a JavaFX gui that is creating a new instance of data calculation to graph in a chart; however, the data is not updating each time the Platform.runLater() feature executes. Each time an event occurs, a new instance with the same variable name occurs. I use to get methods to retrieve the data I want, so shouldn't the values update each time the new instance is created? This is a very condensed version of what happens with the event, but this is what is not working correctly.
Event: solarPlot = new SolarTracker(); solarPlot.getElevation(); solarPlot.getAzimuth(); Class constructor : public SolarTracker() {
I am trying to create a tree that is like a take on 21 Questions. The tree pretty much just starts with three default values: the root/first question "Is it a mammal?", a left child "is it: human?", and a right child "is it: fish?", and then it builds off from there. It goes left for YES and right for NO. If the program guesses the wrong animal the user must enter the correct answer and a question that will distinguish the correct answer and the failed answer. That new question then becomes both the the failed answer and new answers's parent.
A little visual:
....................Is it a mammal?
...........It is: human?........Is it: fish?
*lets say it is a mammal but not human, ie a dog
Updated tree:
.....................Is it a mammal?
.....Does it have a tail?............Is it: fish?
Is it: dog?......Is it: human?
My problem is that after I update the tree 3rd time the values do not change properly. Lets say it is a mammal and its does have a tail, BUT its a cat, then, the updated question, which would now go before "is it: dog?" would be something like: "does it chase rodents?", which its left child would be cat and right would be dog.
However, when my program displays the values it would go something like this:
//first run: GOOD Think of an animal and I will guess it! Is it a mammal? Enter yes or no: yes Is it: human? no
[Code] .....
So pretty much I can't understand what I'm doing wrong since the values in the print statements are right, but they are wrong during the actual run. Where is my error?
For part of my program, I am trying to ask the user for input on generating a number of random characters. I have already done this with integers and doubles, how would I do this for characters using ASCII values? Would I use the same format as I did for generating integers (Shown in code)?
import java.util.Random; import java.util.Scanner; public class NewNumberCharacter { public static void main(String[] args) { // Create a Scanner Scanner input = new Scanner(System.in);
I am having a hard time trying to figure out how to print random numbers from a an array list. I tried google but nothing worked. I have to pick certain values from two lists and print them on the screen. I have included comments in the code to facilitate the explanation.
import java.util.Random; public class Parachute { public static void main(String[] args) { Random randomNumbers=new Random(); int number; int array []={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21}; char A[] = {'a', 'b', 'c','d','e','f','g','h', 'i','j','k','l','m','n','o','p','q'};
noticed that if I use integers only and simple multiiplication to get my exponent results (in this instance I was looking into Base 26) what is returned is odd, BUT consistent results once I surpass the integer upper limit of 2,147,483,647. I anticipated that once this limit was reached the program would blow up somehow, but no.
public static void main(String[] args) throws IOException{ // TODO Auto-generated method stub BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); System.out.print("Enter an integer exponent: "); int i = Integer.parseInt(br.readLine()); CountAlpha ca = new CountAlpha();
How to drag an image beyond the JFrame limits. In Netbeans, when you drag a Java file editor pane out of the main application frame and onto a second monitor, Netbeans provides a semi-transparent image of the pane you're dragging. I would like to reproduce this effect in my own code. I've been able to do this in a test program (code below) using a glass pane, but cannot figure out a good way to get the image to drag beyond the limits of the main application frame. I looked at the DragnGhostDemo from SwingHacks but it has the same limitation. How this could be accomplished?
In the test application below, click on on the button and drag it's image across the application frame.
Write a program that creates an array that can hold 9 double values that represent baseball batting averages for a starting baseball lineup. Use a for loop to populate array with random double values in the range of 0.00 to 0.500. Recall that "double" values are what Java calls "real" numbers. Use a second for loop to print the values in the array with one number per line. Finally, use a third for loop to traverse the array and find and print the maximum batting average in the array. Note: you will need to use String.format to control the precision of a double number when you print it- Here is my code so far:
public class P2F { public static void main (String[] args) { double [] player= new double [9]; //player[0]= Math.random(); for (int index=0; index < player.length; index++) {
[Code] ....
When I open the terminal window I get different variations of this [D@4545c5]. I would like to know all the things I am doing wrong.
I have a problem where I have to create random integers from 1 to n + 1. When the array is displayed I have to find the missing integer from the values that are displayed and show that value. I have to use O(n^2) and O(n) operations. I have created this code so far but I cannot figure out how to make my values display n + 1. It is only displaying values 1, 2, 3, 4 and 5 in random order. I also cannot figure out how to find the missing value. I have created a boolean displayed statement but can't determine how to use it in this code.
=Java import java.util.Random; public class Task6 { public static void main(String[] args) { int[] numbers = new int[7]; //create array of numbers Random random = new Random(); boolean displayed = false; //boolean value to determine if number was displayed
filling out a Random array: An Array of Specific Length Filled with Random Numbers This time what I need to do is take the elements from this Random array and assign them to a new Byte array:
for(int i = 0; i < limit-10; i++) { Random dice = new Random(); int randomIndex = dice.nextInt(array.length); if (array[randomIndex] < 128) { System.out.print(array[randomIndex] + " "); } else if (array[randomIndex] >= 128) { System.out.print(array[i] + " "); } } byte[] noteValues = new byte[]
{ 64, 69, 72, 71, 64, 71, 74, 72, 76, 68, 76 }; //This is the byte array filled manually!
I've tried amending the manual input to fit in with the Random array, as follows:
byte[] noteValues = new byte[] { array[randomIndex] };
In this case, however, the Byte array can't interpret the int values. Also, if the Byte array is outside the 'for' loop, array[randomIndex] cannot be resolved.
The program I'm supposed to create generates a random number between one to ten. Then the program is to ask me if I wish to cross the road. If you choose to cross, the outcomes for 0-2 are "You crossed safely." For 3-5, 75% of the time it should say "RIP you got run over", and 35% of the time it should say "You crossed the street." For 6-8, 60% of the time it should say you made it.", and 40% of the time it should say "You died". For 9-10, it should say "RIP".
So far I have gotten the random number generation part working. I have up to here:
import java.util.Random; public class test4 { public static void main(String[] args) { Random random = new Random(); for(int i =0; i < 1; i++){ int num = random.nextInt(10) + 1; System.out.println("The number of cars on the street are: " + num + "Do you wish to cross the road?"); } } }
I am using JSF2 with Primefaces. Here is my business requirement-Hidden field on JSF page should take the value from the session object that is set in managed bean. Session object is updated every time when the user submits the page. I am able to update the session object in the managed bean and able to get the value in the hidden field first time and after that i see the same value in the hidden field even though session object has different value. Here is the hidden field: <h:inputHidden id="xyz" value="xyz"/> i tried using sessionScope but still didn't work.
I have a jTextPane set up and a panel with radioButtons. My jTextPane displays the contents of a text file I have chosen. The 3rd line, 4th index, displayed in my jTextPane specifies a value of type int. When I click my radioButton, I would like that value to increase by 1. So far, I have the following code. I tried to pane.setText(value + 1), but that doesn't seem to work. How do I update the value and display the updated value in jTextPane?
My code :
private final ActionListener actionListen = new ActionListener() { for(String line: pane.getText().split("")){ String lineThree = line[3]; int value = lineThree.charAt(4); if(radioButton.isSelected()){ pane.setText(value+1); } }};
The program runs well , it adds the applet but it dosn't update the interface unless I press "_"(Minimize) . To be more clear , the object paints a spring wich goes through 4 stages , it is added to the JFrame but it dosn't uptade until I minimize the frame , that is when it goes to the next stage .
The main class which calls the spring to be added to the frame :
public class principal implements ActionListener ,Runnable{ JTextField field; JFrame frame; private class Action implements ActionListener { public void actionPerformed(ActionEvent event) { frame.repaint();
I am trying to Make A GUI which has a Jcombo box i also want it to have a jlabel that up dates depending on which option the user selects from the JcomboBox
for exampl if i select lion i want it to say you chose lion on the Jlabel and if i choose ostrich i want it to say ostrich and so on
I have two images. I want to be able to click them and kick off a call to a listener in Java to change a value in the bean. I also want the view to update my dropdown (labeled "menuModel") to either be rendered or not, depending on which image I click. Alternatively, I would be fine with the dropdown simply being disabled and enabled for the same criteria.
So far, the listener kicks off fine, and the value gets updated correctly in the bean. However, the view never gets updated. I have tried this a hundred different ways, but nothing seems to work. If I hit refresh on my browser, the view updates. But I want it to do it automatically.
I have loaded the combo box at starting of program.When i am adding the element to combo box through database it's not updating visually.But the inserted data is successfully loaded in List.
When I add an element to my array, I have to make sure that it stays a heap, ie every child is smaller than its parent. However the method that I am using for this, trickling up, is not updating the elements properly, it pretty much just leaves is as is.
Here is the relevant code:
public class MaxIntHeap { int[] array; int actualSize = 0; public MaxIntHeap(){ array = new int[20];
Why the Progress Bar is not Working in Second attempt?When i am Invoking Below Method on actionPerformed at first attempt its Working Fine but After that Its Not Working at all....
My program is working fine. When I executes it, it shows me this:
The clock is 54 minutes over 23 (+41 seconds.
and when i press ENTER, it shows me this:
23:54:41
But then it won't show me the update. I want to update the time, for example when I started the execution the time was 23:54:41 but it must show me something like 23:54:45, because I need the current time.
I have searched the whole internet about this but I don't know how to use the "Date.update ();".
Here is my code
package p2;
import java.util.Calendar; import java.util.Date; import javax.swing.JOptionPane; public class Time { public void myTime() { Calendar cal = Calendar.getInstance();
I have an application scoped and i want to edit it from request scoped data. I use this code but application scoped data are not updating. What i am doing wrong?
Application Scoped Data
@ManagedBean @ApplicationScoped public class ApplicationData { protected String contactEmail; public String getContactEmail() { return contactEmail;
If I run this code. I can manipulate it so that X wins. When the third X button is pressed, there is no display saying that X has won and that the game is over. I have read over this code for days and still have not figured it out.
import java.awt.*; import java.awt.event.*; import javax.swing.*; public class TicTacToe extends JFrame implements ActionListener, WindowListener{ public JFrame window = new JFrame("window");
I am working on a project in Eclipse, and it is my first time working with swing.I have the GUI setup the way that I like it, my hang-up is how to "update" the variables in the code as they are changed.The basics of the code is that I have several different String[] that will show up in a Jtable depending upon the input of the lists I have in the GUI.
in essence, if list1==2 && list2==3 returnedarray = array1
I would like to have the returnedarray/Jtable be updated live as the lists are manipulated. So as soon as I change my list selections to... list1==1 && list2==3
the code would shift to the proper array... returnedarray = array2
If making the output update live isn't a possibility how would I code a button to update the input/output giving me the proper String[]?
I create and populate someLinkedList with '*' characters as soon as a gameLinkedList object is created, so my class is something like
private int size; public class gameLinkedList{ private CharNode game; public gameLinkedList(String someWord){ size=someWord.length(); for(int i=0;i<size;i++){CharNode aNode = new CharNode('p');
I am trying to use a prepareStatement to update the database but I am getting an error on setInt - cannot find symbol and on the executeUpdate() I get error no suitable methods for executeUpdate (no arguments)
public Products UpdateProductsDB() { pool = ConnectionPool.getInstance(); connection = pool.getConnection(); try { stmt = connection.prepareStatement("UPDATE products SET qtyonhand=?, qtysold=? WHERE id=?"); } catch (SQLException ex) {
[Code] ....
I used similar code for an insert statement and I don't have these problems
