I will write guess the picture game. I didn't find for example 4*4 picture how to sort picture random everytime ?
For example , when game start random various are 2734856127348561 two times same picture...
I'm trying to save a picture from byte arrays using RandomAccessFile. The file appears but doesn't open (like its corrupted).
I'm using the bittorent protocol which gives a SHA-1 hash that I compare all the bytes with to verify the data. All the bytes pass the hash check and all the hashes are checked. So I'm pretty sure I'm getting all the bytes correctly.
Is there anything I can do that could tell what's going wrong?
public RUBTClient(final TorrentInfo2 tInfo, final String outFileName) {
...
this.outFileName = outFileName;
File destined = new File(outFileName);
try {
destined_file = new RandomAccessFile(destined, "rw");
destined_file.setLength(tInfo.file_length);
} catch (FileNotFoundException e1) {
[Code] .....
I've been trying to post background picture for a long time in java. I've just finished writing breakout game and I want it to be more special and full of interesting things. I want to upload picture in java. I write
GImage image= new GImage("LEONARDO.JPG");
image.setSize(50,50)
add(image,200,400)
The size of the whole screen is 400,600.
ItemListener: checkbox component
I want to display a picture by clicking on the checkbox.
Here is my code:
public class Dukes {
String action;
String friend;
public String getActionImage() {
return action;
[Code] .....
I'm trying to make a code that will draw "roses" using polar functions. The code below is what I have, but when I run it nothing happens. What's missing?
package rose;
import edu.princeton.cs.StdDraw;
public class Rose {
public static void main(String [] args) {
int N = Integer.parseInt(args[0]);
StdDraw.setCanvasSize(512, 512);
[Code] .....
I am working in jsf application, in that one requirement is present. If we click "Take picture" button using webcam from web browser, image has to be captured and displayed in the screen. Finally by clicking save button picture has to be stored either in Database or in File Folder.
View Replies View RelatedI am trying to learn Java and while i was playing a bit with the basic knowledge that i have i encountered a problem. When i run the program, the lines and the picture appear in two separate windows when i compile the program. how can i make them appear in the same? The code is this:
public class Game
{
private int x;
private Picture pic;
[Code].....
I'm stuck with a problem. The code below generates a coloured image.
//Setting the size of the graphics window
final int WINDOW_DIMENSION = 200;
final int SIZE_FACTOR = 3;
EasyGraphics generate = new EasyGraphics(WINDOW_DIMENSION*SIZE_FACTOR,WINDOW_DIMENSION*SIZE_FACTOR);
//Constructing the arrays
char[][] firstArray = new char[WINDOW_DIMENSION][WINDOW_DIMENSION];
char[] secondArray = scan.toCharArray();
[Code] ...
What I would like to do is generate a picture which is mostly white but the colour boundaries of the original picture are in black. I tried using the code below but it doesn't produce what I wanted.
for (int a = 1; a < WINDOW_DIMENSION; a++) {
for (int b = 1; b < WINDOW_DIMENSION; b++) {
generate.setColor(0,0,0);
if(firstArray[a][b]!=firstArray[a-1][b] || firstArray[a][b]!=firstArray[a][b-1])
generate.setColor(255,255,255);
generate.plot(a,b);
}
}
PaintWindow pw = new PaintWindow();
Random rand = new Random();
ImageIcon image = new ImageIcon("C:/Users/Ghostkilla/Desktop/gubbe.jpg");
setWidth(pw.getBackgroundWidth());
int height = pw.getBackgroundHeight();
[Code] ....
If you run this code it will move a picture from right to left and hit the left wall and then go to right again leaving the window (It stops there). I want to make so it hits left and then right wall continuously till someones close the window. So basically I am using a for loop to make it go left right all the time.
How to make so the picture moves from bottomleftcorner to toprightcorner diagonally without leaving the window.
I have to write a program that will read a picture and then print out the number of blocks inside it.
I have to read the picture as a binary matrix of the size r - c (number of rows times number of columns). The blocks are groups of one or more adjacent elements with the value 1.
- Blocks are built exclusively of elements with value 1
- Each element with value 1 is a part of some block
- Adjacent elements with value 1 belong to the same molecule.
We only take into account the horizontal and vertical adjacency but not diagonal.
INPUT:
In the first line of the input we have the integers r and c, separated with one space.
Then we have the r lines, where each contains s 0's and 1's.
The numbers inside the individual lines are NOT separated by spaces.
The OUTPUT only print the number of blocks in the picture.
Example:
INPUT:
7 5
01000
00010
00000
10000
01000
00001
00100
OUTPUT:
6
THIS IS WHAT I CAME UP SO FAR:
import java.util.Scanner;
class Blocks{
public static void main(String[] args){
Scanner sc=new Scanner(System.in);
char ch[][];
int rowNum=sc.nextInt();
int columnNum=sc.nextInt();
[Code] ....
I have separated characters into an array that can be accessed from any method, however, when I try to compare the inputed guess to the computers random sequence, the counter always comes back as 0 (the comparison occurs in the checkColour method).
Java Code:
package mastermind;
import java.util.Scanner;
/**
* Program Description: play a game of mastermind versus the computer
*/
public class Mastermind {
private static int block1, block2, block3;
private static String blockColour1, blockColour2, blockColour3;
[Code] ....
The counter is called colourCorrect.. But I think the problem lies more in me converting the strings (input and computerGuess) into char arrays, as if I output the values at position in the array, I get numbers (but the numbers are not character values from the ascii table).
I'm writing an ESP game code for class. The problem is i cant get it to cycle through the colors after each guess is entered. It stays fixed on the original random number generated.
import java.util.Random;
import java.util.Scanner;
public class Final1 {
String colorInput, computerColor;
int computerNum, right, wrong;
[Code] ....
This repeats 10x but the color never changes from the initial random chosen.
I am creating a hangman code. So the game i am creating is 2 player, first player enters the word and second player guesses. i made the code but i don't know how to restrict the first player from adding random characters into the secret word because for my project the word can only contain letters. so i need making the code so the player 1 can only enter letters.
My code is below:
/**
* Auto Generated Java Class.
*/
import java.util.Scanner;
public class Hangman {
public static void main(String[] args) {
Scanner input= new Scanner(System.in);
String player1,player2;
int wrongguessamount = 0; //keeps the count of the amount of wrong guesses
int correctguessamount = 0; //keeps count of the amount of correct guesses
int maxincorrect=6;//makes sure the user cant guess more than 6 times
[Code] .....
package guess.the.numbers;
import java.awt.*;
import javax.swing.*;
import java.util.Random;
import java.awt.event.*;
ublic class GuessTheNumbers extends JFrame{
private JButton guessBtn;
private JButton restartBtn;
[Code] ....
I am getting a strange error and it almost seems like its not comparing it to the random generated number just the guess that i entered before. Here are my error messages.
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at guess.the.numbers.GuessTheNumbers$ButtonHandler.actionPerformed(GuessTheNumbers.java:119)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
[Code] .....
The problem occurs after the user inputs the guess.... it either runs the for loop if guess = numtoguess and reveals the answer even if the user input is wrong.... or it always runs the first if statement in the while loop if guess!= to numtoguess... heres the code
public static void main(String[] args) {
String[] Answers = {"yes", "Yes", "No", "no"};
String Name = JOptionPane.showInputDialog(null, "Hello, What is your name?","Random Game", JOptionPane.QUESTION_MESSAGE);
String UI = JOptionPane.showInputDialog(null, Name + " do you want to play a game", "Random Game", JOptionPane.QUESTION_MESSAGE);
[Code] ....
I'm having some problems with the graphics of my hangman game. The graphic that's supposed to show up on the first guess (the hangman pole) doesn't show up until guess number 2. And on the eighth guess, no graphics show up (I just get a blank frame).
import java.awt.*;
import javax.swing.*;
public class HangmanFigure extends JPanel {
private int guesses;
private Image background;
public HangmanFigure() {
super();
[Code] .....
Im trying to make a tic tac toe game that you play against the computer using a random number generator and two dimensional arrays for the game board. Im not trying to make a GUI, the assignment is to have the board in the console, which I have done. I have run into a few problems with trying to get the computer player to correctly generate 2 integers and have those two integers be a place on the game board. Here is my code so far.
import java.util.Random;
import java.util.Scanner;
public class TicTacToe {
private static Scanner keyboard = new Scanner(System.in);
private static char[][] board = new char[3][3];
public static int row, col;
[Code] ....
How do i make this merge sort take on random numbers in an array instead of hard coding the numbers
Integer [] a = {8, 2, 6, 7, 5, 4, 3, 1};
mergeSort(a);
System.out.println(Arrays.toString(a));
}
public static void mergeSort (Comparable [] a){
[code]....
Java Code:
import java.util.ArrayList;
import java.util.Random;
public class NumSorting {
public static int numOfComps = 0,
numOfSwaps = 0;
public static void main(String[] args)
[Code] ....
What is wrong with my code in this sorting program? It won't copy the random generated numbers to the sort method. How to get the random generated numbers to copy to the sort method. Below is what the program is displaying.
Original order : 3 2 5 4 1
Selection Sort
Original order:
[I@7a84e4
Number of comps = 10
Number of swaps = 0
Sorted order : 0 0 0 0 0
I have an array that I filled with 30 random characters, but now I am trying to sort them in ascending order and the descending order using lambda expressions.
public class RandomCharacters {
public static void main(String args[]){
Random r =new Random();
char myarray[] = new char [30];
for (int i = 0 ; i < 30; i++)
[Code] ......
Suppose i have written a method like this
public void myWork(){
mergeSortMyData(); O(nlgn)
....
someProcessing(); O(n^2)
someprocessing2(); O(n^2)
}
then what will be time complexity of my code...according to me it will be O(nlgn + n^2) ...is it correct ?
I tried this program, its guessing game. Where program decide 1 number and user will guess number. I am getting 1 problem. When user want to play game again.the random number remain same. So where i can put reset random in code..? And 1 more question if I want to write driver code for this. What should i transfer to driver code.
import java.util.Random;
import java.util.Scanner;
public class GuessGame {
public static void main(String args[])
{
String choice="y";
[Code] ......
I created the a Time class, a Random number class, and Node class. The thing is when i run the Node class its suppose to spit out a random number and tell me the time it spit it out in nano time. The thing is i cant get the nano time to appear at the time the number was generated. This is my assignment
1) A “MyNum” class that will generate a random integer number from 1 to 200.
2) A “Time” class that will return the system time with sufficient resolution to show the time between insertions. I suggest System.nanoTime().
3) A “Node” class that will encapsulate the integer number and the Time it was generated.
4) And a “Storage class” class that will contain the all the SORTED Nodes using an insertion sort.
a. This class should have a “add” method to add in each node.
b. And method(s) so the driver class may display the sorted list of nodes
5) The “main” or driver class.
But what i want for now is to get the node class to run for now. This is the code so far:
public class Time {
public static long time()
{
return System.nanoTime();
}
}
The Number class
import java.util.Random;
public class MyNum {
static Random number = new Random();
[Code] .....
What I'm supposed to be doing is making it so the program can accept multiple filter and sort commands at one time, and each should be separated by a whitespace.I was thinking about parsing the input again, using whitespace as the delimiter, then normally progressing with each token, as though there was only one command.
However, coding this the way I'm doing it will firstly probably take hours, and secondly, it's likely not even right. I don't have any real way to determine which token contains which data from the Song objects.These are the specific requirements for this portion:A sort/filter command consists of one or more of the following options:
-year:<year(s)>
-rank:<rank(s)>
-artist:<artist>
-title:<title>
-sortBy:<field>
Any number of these options may be given, and they may be given in any order. If multiple options are specified, they will be separated by whitespace.
GazillionSongs Class (the main)
Java Code:
import java.util.*;
import java.io.*;
[code]....
I have been assigned to write a program that has a user input random numbers then the program is to sort them in different ways. I have the coding for the different sorts but, I have an error saying that I am missing a return statement in the "Bubble" method. I am trying to return "arr[i]" in the "for loop" which gives me this error, and when I try to take the "return arr[i]" outside of the "for()" loop the error reads the it cannot locate variable "i".
import java.awt.* ;
import java.awt.event.*;
import javax.swing.*;
public class SwingSorts extends JFrame implements ActionListener
{
JRadioButton bubble;
JRadioButton selection;
[Code] .....
I am trying to sort the 5 cards in decreasing order and this is exactly what my professor gave us but it has errors.
int pos;
int max;
for (pos = 0; pos < hand.length; pos++){
max = pos;
for (int i = pos + 1; i < hand.length; i++){
if (hand[max] < hand[i]){
max = i;
}
}
if (max != pos){
int temp = hand[pos];
hand[pos] = hand[max];
hand[max] = temp;
}
}
}
Line 6 has an error with the < operator.
Line 11&13 says cannot convert from card to Int.
This method is passing in Card[] hand