Java section for areas of improvement, but the section is not as active there. However, I post to collect different areas of improvement from a higher amount of experienced programmers overall.
[package gamefiles]
HeadsTails Class: [URL] ....
HigherLower Class: [URL] ....
Games Class: [URL] ....
I'm new to java, and i'm trying to make a gaming, but for some reason nothing will print into the console. I want it to have the system to print out the frames, and ticks, but nothing will happen.
package ca.trey.game;
import java.awt.BorderLayout;
import java.awt.Canvas;
import java.awt.Dimension;
import javax.swing.JFrame;
public class Game extends Canvas implements Runnable {
[Code] .....
Opoly works this way: The board is a circular track of variable length (the user determines the length when the game app runs). There is only one player, who begins the game at position 0.
Thus, if the board length is 20, then the board locations start at position 0 and end at position 19. The player starts with a reward of 100, and the goal of the game is to reach or exceed reward value 1000. When this reward value is reached or exceeded, the game is over. When the game ends, your program should report the number of turns the player has taken, and the final reward amount attained.
In Opoly the game piece advances via a spinner - a device that takes on one of the values 1, 2, 3, 4, 5 at random, with each of the five spin values equally likely.
Although the board is circular, you should draw the state of the board as a single "line", using an 'o' to represent the current player position, and * represent all other positions. Thus if the board size is 10, then this board drawing:
**o******
means that the player is at location 2 on the board.
Here are the other Opoly game rules:
If your board piece lands on a board cell that is evenly divisible by 7, your reward doubles.
If you land on the final board cell, you must go back 3 spaces. Thus if the board size is 20, the last position is position 19, and if you land there, you should go back to position 16. (If the position of the last cell is evenly divisible by 7, no extra points are added, but if the new piece location, 3 places back, IS evenly divisible by 7, then extra points ARE added).
If you make it all the way around the board, you get 100 points. Note that if you land exactly on location 0, you first receive 100 extra points (for making it all the around), and then your score is doubled, since 0 is evenly divisible by 7,
Every tenth move (that is, every tenth spin of the spinner, move numbers 10,20,30,... etc.), reduces the reward by 50 points. This penalty is applied up front, as soon as the 10th or 20th or 30th move is made, even if other actions at that instant also apply. Notice that with this rule it's possible for the reward amount to become negative.
Here is the driver class for the game:
import java.util.*;
public class OpolyDriver{
public static void main(String[] args){
System.out.println("Enter an int > 3 - the size of the board");
Scanner s = new Scanner(System.in);
int boardSize = s.nextInt();
[Code] ....
heres the methods:
REQUIRED CODE STRUCTURE: Your Opoly class must include the following methods (in addition to the Opoly constructor) and must implement the method calls as specified:
playGame - The top-level method that controls the game. No return value, no parameters. Must call drawBoard, displayReport, spinAndMove, isGameOver.
spinAndMove - spins the spinner and then advances the piece according to the rules of the game. No return value, no parameters. Must call spin and move.
spin - generates an integer value from 1 to 5 at random- all equally likely. Returns an integer, no parameters.
move - advances the piece according to the rules of the game. No return value, takes an integer parameter that is a value from 1 to 5.
isGameOver - checks if game termination condition has been met. Returns true if game is over, false otherwise. No parameters.
drawBoard - draws the board using *'s and an o to mark the current board position. Following each board display you should also report the current reward. No return value, no parameters.
displayReport - reports the end of the game, and gives the number of rounds of play, and the final reward. No return value, no parameters.
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] ....
Trying to run my program after getting rid of code errors (I think) and now it doesn't produce anything but <terminated> in the console window. The produce is suppose to analyse text from a file and produce the percentage of words used
package com.project;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.math.BigDecimal;
[Code] ....
erfrf.jpg
This is my program. All is working fine except stopping reading from console. Problem is that even after you write done if you are fast enough you are able to write more. As you can see I can't close scanner because of two inputs. Even so I tried to close it but problem was still here.
public static void main(String...args) {
System.out.println("Write first input:");
System.out.print(streamToString(System.in, ""));
System.out.println("Write secondinput:");
System.out.print(streamToString(System.in, ""));
[Code] .....
How to clear console screen ? I am using Linux machine.
1) Runtime.getRuntime().exec("clear"); // this is not working. Not clearing the screen
2) for ( int i = 0; i < SOME_NUMBER; i++)
System.out.println();
2nd way is working but i think it is not a good option as i need to move scroll bar again and again.
i need to take a txt file and turn it into a csv(comma seperated value) output on console but where to begin.
View Replies View Related"Write a java application that displays the following patterns separately one below the other.
Use for loops to generate the patterns. There are 4 Triangle patterns.
All asterisks (*) should be printed by a single statement of the form System.out.print('*');
This is 4-different patterns, not 1-pattern."
The first 2 triangles are right angles and is simple to make with a loop with in a loop
The 3rd triangle is like an inverted christmas tree and the 4th one is a christmas tree. ( It's not showing properly on the board so i deleted it). I can't seem to make the 3rd and 4th triangle line up properly it looks like this (the _ represents blank spaces on the console)
_____*_____
_____**_____
____***_____
____****_____
___*****____
___******_____
__*******
__********____
Notice how the sides of the triangle isn't straight and the triangle looks like its dancing, the assignment requires it to be a straight line. is there anyway to do this? This is suppose to be the output. all the lines of the triangle is straight and not jagged ...
public class myclass {
public static void main(String[] args) {
int counter = 1;
int counter2 = 1;
while (counter != 11){
EmptyLine();
[Code] .....
My code for those particular triangle is in the work because I cant figure out how to make it look like that.
I want to input character data from the console without using the BufferedReader class. I tried using the Scanner class but the compiler shows an error. This is what I tried:
sc.nextCharacter();
sc.nextcharacter();
sc.nextChar();
Sc.nextchar();
Is there any way I can input character data without using the BufferedReader class?
I have a multithreaded java program. I have a few worker threads which process data over a udp server. Then I have another thread for console input. The problem is when there is an error with one of the worker threads, and it prints to the console, my console thread loses "focus", that is, the while loop seems to no longer run. Here is the console thread:
Java Code:
public void run() {
Console c = System.console();
if (c == null) {
Logger.writeError("No console.");
System.exit(1);
}
while(true){
String login = c.readLine(">>>: ");
System.out.println("You entered: " + login);
}
} mh_sh_highlight_all('java');
When an exception is raised, it prints it to the console, and suddenly the program no longer shows the >>> prompt from above.
I seem to be having a issue with my java console app what it should do is query a SQL DB and list the user details (userid, firstname ,lastname) from the user table, and the users stocks (stockname ,stockdiscription) associated to each user from the userstocks table if I'm thinking correctly!
I'm sure it is just a logical error, but I'm not sure of the way to get the out put I'm looking for. I will add the makeDB.java file and DatabaseQuery.java file as well as the current Exception(Run Time Exception) below.
**I have added other users and stocks manually - Not just what the MakeDB.java file inserts **
Output and Exception:
Stock holdings by User
User ID User Name
Stock - Description
-------------------------------------------
admin01 Default Admin
Exception in thread "main" java.sql.SQLException: ResultSet is closed
at sun.jdbc.odbc.JdbcOdbcResultSet.checkOpen(JdbcOdbcResultSet.java:6647
)
at sun.jdbc.odbc.JdbcOdbcResultSet.next(JdbcOdbcResultSet.java:1248)
at DatabaseQuery.main(DatabaseQuery.java:45)
Press any key to continue . . .
Java Code:
MakeDB.java:
import java.sql.*;
import java.io.*;
public class MakeDB
{
public static void main(String[]args) throws Exception
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
[Code] ....
I have written a shell script which connects to oracle database and performs operation and returns some output message. Script works fine from command prompt. My requirement is to make it run from a web page which I have accomplished. I am getting the output of shell script on a different web page defined by HTML form action in my jsp file. Everything is working fine.
Below is the part of java class I have written:
=============
String fileName = "build_"+ request.getParameter("region");
String arg1 = request.getParameter("release");
String arg2 = request.getParameter("email");
ProcessBuilder pb = new ProcessBuilder(fileName,arg1,arg2);
Process p = pb.start();
InputStream inputStream = p.getInputStream();
[Code] ....
As shown above, my shell script accepts 2 arguements . User enters arguements in the fields provided which are passed to shell script by processbuilder. Script runs successfully and displays output [ success/error ].
But my problem is , the shell script takes nearly 1 hour to do its job in the database and untill then my web page keeps showing as busy. Whereas in command prompt, shell script displays messages as it runs and thus keeps the end user informed about its progress. However, when called from java it waits untill the shell script completes/terminates and finally displays all the messages at once. I want to know if there is a way to display the shell script output on web page as it continues to run in the background ( child process ).
I tried without the waitFor() function but no luck. It still waits for shell script to exit before displaying any message.
I thought you can use PrintWriter to write to the console but when I run the following code I only get "abc" printed to the console.
import java.io.*;
class Class1{
public static void main(String...abc) throws Exception{
PrintWriter writer = new PrintWriter(System.out);
writer.println("test");
System.out.println("abc");
}
}
I created a calendar program so when the user enters a day number and a year it would show the calendar for the year . My issue was that I could not get the numbers to line up neatly and how they should look . Also if its not to much trouble I would like to know how to turn this in to a loop .
import java.util.Scanner;
public class Calendar {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter a Year");
int Year = scanner.nextInt();
[Code] .....
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 am having a great deal of frustration trying to use the scanner to get user input from the eclipse console. Here is what I am trying to do.
Print a menu for the user with options, take that (1) char input and run it into a switch statement for processing. I have that done and it is working fine.
If the user chooses to enter strings for storage, They are instructed to enter their string and press enter to complete that string entry. Then enter the next string and press enter, etc.
So I have a While loop for this. Get the scanner input, store it in the LinkedList, get the next scanner input, etc. I get the scanner string and store it in a Linked list. That works fine. The user is instructed to simply enter a blank string to end the entry procedure, like just press Enter on the new line without typing a new string.
The problem is the scanner doesn't seem to return anything for me to Test to close this procedure. How do I TRAP the fact that the user just pressed enter so I can end my procedure? I have tried next() and nextLine() and reset(), etc. And I am getting knowhere.
Follow the //? FIRST and SECOND notes, then I understood that Java has GOTO as Keyword for future versions and that usually one can avoid GOTO using break inside the cycles, but I need a jump( salto) in the code.
import java.util.Scanner;
public class ArrayOrdinati {
public static void main (String[] args){
int[] Array = {5,3,1};
int e=Array.length;
int b;
[Code] .....
What I'm tasked to do, is to make a simple Java class that forms a "V" based on whatever height the user would desire, made out of stars "*", and spaces " ".
For example, if a user desires a "V" with a height of 3, it would look print out something like;
* *
* *
*
Where a "V" with a height of 5 would look something like:
* *
* *
* *
* *
*
(That one didn't look too good, but you get the point, it's suppose to be 5 "high" and shaped like a "V"). The problem I have, is that I don't see what loops within loops within loops I would need to build something like this.
All the easy stuff like asking the user what height they want and such, I can handle, but I don't see how this thing is suppose to be coded, to print out a decent-looking and right-sized "V" in the console.
public static void main(String[] args) {
int height = 3;
for (int i = 0; i < height; i++) {
for (int j = 0; j < 2/(height+1)+1; j++) {
if(j == i) {
[Code] ....
Looked like something of a good start, and it drew me half (!) of the "V" in the size I wanted. Am I on to it here, or am I on the moon in terms of progress? I need the entire "V", not just a nice "".
I am implementing a console based interface for an assigment. I've got a DAO interaces and implementations ready and I am stuck on a loop that checks whether to display logged in menu or logged out menu.
public static void main(String[] args) throws SQLException {
Main consoleInterface = new Main();
boolean runningLoop = consoleInterface.isRunning();
boolean loggedOutLoop, loggedInLoop;
while(runningLoop) {
[Code] ....
So when this runs it should show loggedIn() method only and only if the condition is not met. At the start when program runs I set loggedOutLoop = true and loggedInLoop = false. When I handle login I set loggedOut = false and loggedIn = true
What seems to happen is that the else statement doesnt work and the output I've got is only loggedOut() method displayed where I only want loggedIn() to be displayed without loggedOut().
I have this very simple application just to test console input:
import java.util.ArrayList;
import java.util.Scanner;
public class WriteTester {
[Code]....
When I let it run, only every third entry is put into the array list and I have to hit "enter" three times for the "break" in line 21 to trigger. I cannot find out why.
how to clear my java output console?
View Replies View RelatedI'm using eclipse to run my java program.
I want to be able to change the background color of the console when the user types in a particular command..
e.g User types: color blue
Then the background color of the console should turn blue
Is this possible and how would I go about doing it?
I have a console application. One thread allows a user to directly input into a console. Another thread listens on a tcp port, takes input, processes it, and then writes it to the console. The work in different threads, but in tcp thread, one I call a method outside that thread that writes to console, it often gets stuck. here is a mockup of situation:
Java Code:
import java.io.BufferedReader;
import java.io.Console;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
[Code] ......
It often freezes on "Attempt 1". Before I used System.out there, I also tried console.writer() there but both freeze at that point often. Any situation where console or System.out.writeln freeze when working across threads and why it is occurring? It almost feels like one thread has locked the console so the others can't write to it.
I am writing a class which formats console output as a table. It displays the type of an entry, the name of an entry, and the data for an entry. I am stuck on a required for loop which appends a tab character to a string, for formatting it as a table. It doesn't seem to be adding any of the tabs and I can't tell what I've done wrong. As far as I can tell the contents of the loop are never reached, and I can't make sense of it.
The ConsoleWriter class that contains the code that is in error...
Java Code:
package frontend;
public class ConsoleWriter {
private static String tabbedData(String data, int min) {
System.out.println(); //for debug
int tabcount = 0;
int len=8*min;
[code]....
i want to know about to convert speech to text in java..,
i found some articles are released to achieve this target (Speech 2 text) by using the Google Speech API from Google console.
i have already account & using the Map & other API too. But i unable to found the Google Speech API now..,
Sample Link : Speech to Text Library for Processing (STT)
what shall i do to achieve my target..