Implementing Java Project With Android
Nov 19, 2014
I have a gameengine stil partially in the works for pc made in java, I am attempting a port over to java but certain classes and other fuctions are not available for android that there is in java. this means that my render engine, gameengine and a couple of other clases therefore don't work.
My question is, is there anyway of using the gameengine classes that work into the project so that all i have to do is declare within the engine what i want to export for wheather this is android or java. or importing packages from the game engine project and directly linking with the ability of re-writing the odd few classes that do not work.
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Jun 26, 2014
I tried many times to return a string from java project to an android project But it keeps sending incorrect values as in as it should be 1 here is an example.
Java Project:
boolean somethingboolean = false;
if(something == "1"){
somethingboolean = true;
}
public static String getString(){
if(somethingboolean == true){
return "TRUE";
}else{
return "FALSE";
}
}
Android project:
System.out.println(JavaProject.getString())
And in the android project it prints "FALSE"
So what should i do?
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Jun 26, 2014
I tried many times to return a string from java project to an android project But it keeps sending incorrect values as in 2 as it should be 1 here is an example.
Java Project:
boolean somethingboolean = false;
if(something.equals("1")){
somethingboolean = true;
}
public static String getString(){
if(somethingboolean == true){
[Code]...
Android project:
System.out.println(JavaProject.getString())
and in the android project it prints "FALSE"
So what should i do?
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Sep 22, 2014
I'm a Java beginner and I'm having issues implementing Java's GregorianCalendar into my project. I'm writing to specific test code that passes arguments into an instantiated GregCal class. My problem is that I'm not sure how to pass the arguments through to my constructors and methods, or if I'm even supposed to do that at all. Date formatting is another issue, but I'll be glad If I can just get the dates in and back out. Here is some of the code:
Test code:
// Create a Student using the default constructor
Student newStudent = new Student();
GregorianCalendar dateOfBirth = new GregorianCalendar(75,7, 3);
newStudent.setDateOfBirth(dateOfBirth);
GregorianCalendar dateOfGraduation = new GregorianCalendar(90, 6, 10);
newStudent.setDateOfGraduation(dateOfGraduation);
Setter:
public void setDateOfBirth (GregorianCalendar dateOfBirth){
this.dateOfBirth = dateOfBirth;
}
I know that's not much to work with, but that's exactly my issue. I can't seem to find a reliable and UNDERSTANDABLE tutorial for java.util.GregorianCalendar anywhere. All of the existing documentation is beyond my grasp at this point. I'm assuming I need to declare and initialize MONTH, DAY, YEAR variables somewhere in order for the arguments to be passed through correctly. I'm just not sure where or how.
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Jun 4, 2014
I have an integer variable called 'selectedname' which is declared as shown below.
public class MainActivity extends Activity implements View.onclickListener, AdapterView.OnItemClickListener {
int selectedname;
So when the app starts an Alert Dialog with two buttons asks the user if they want to tell the first or the last name. The two buttons are 'first' and 'last'.
The problem I'm facing is that in the code the value of selectedname is suppose to change depending on the users choice as shown below.
public void displayWelcome() {
//*other code comes here but it works fine*
AlertDialog.Builder choice = new AlertDialog.Builder(this);
choice.setTitle("Yo!");
choice.setMessage("First name or last");
choice.setPositiveButton("First", new DialogInterface.onclickListener() {
public void onclick(DialogInterface dialog, int whichButton) {
selectedname = 1;
[Code] .....
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Aug 25, 2014
I am trying to deploy an android application that connects to a java server. I am doing an apointments system, so the client asks for an apointments with a specific office/doctor. What i did, was to create a java server, using object for the offices, and via sockets it communicates with the android client.
The problem is that when i tried to use my (very demo still) app on my phone and sent it to some friends for testing, i coulnt find a way to have my server on the internet.
So I changed to (or trying to) servlet. But, how to do a client server application with servlets. All tutorials i have seen are more on website clients, but thats not what i need.
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Oct 11, 2014
I am in search of a library that has been created in JAVA that can be utilized to solve for roots of a nonlinear system of equations. Each equation has 2 variables, x and y, and will need a library that uses higher calculus equations. No ones that just solve for x.
Most of the libraries that have been created to solve nonlinear equations are either in Fortran, C, or Python. There are a few libraries such minpack/scipy. The only libraries that I have been able to find or programming solutions that are in JAVA either require additional programs such as Matlab or are commercial products
I did find one library put together by a professor in Colorado State, but am unsure how to use it. There does not seem to be a way to enter your functions in the code.
Newton Raphson Method - Multivariable(x and y) Page Not Found
How to use this library or find a library that can be used in an android application would be amazing.
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Jan 8, 2015
The game is too have two players, each user clicks a button and two dices will roll, if a user rolls a double they win.
firstly I have started with two imageview's and a button I am trying to randomise two images by clicking one button I have managed to randomise one image in one box but I am struggling to randomise both image views here is my code so far.
import java.util.Random;
import android.app.Activity;
import android.os.Bundle;
[Code]....
That code is only generating a random dice image in one of the image views I have hit a brick wall
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Mar 9, 2013
I am using EJB (Stateless) without any web service. I simply need to send a String from Client to Server
I can connect any Java SE Client with this EJB. But how I can connect an Android Client with this EJB (i.e. Using EJBRemote Interface) directly? I am using :
Glassfish Application Server
Netbeans IDE
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Apr 25, 2014
i was leaning inheritance and tried to implement it in Java.This is my base class vehicl.java
public class vehicle{
private int topSpeed;
private int cubicCap;
private String modelName;
private boolean hasAlloy;
[code]...
I also have a derived class called car.java.What i wanted to do in the derived class was that i wanted to override the constructor as well as the getInfo() method from the base class.I wanted to add an additional attribute to the car "numberSeats" and display tat too when the object to car class calls the getInfo() method .It showed an error "identifier required" when i tried to compile car.java program.
import java.util.Scanner;
public class car extends vehicle{
//int numberSeats;
//System.out.println("Enter the number of Seats");
Scanner numberSeats=new Scanner(System.in);
numberSeats=numberSeats.nextInt();
//System.out.println(numberSeats.nextInt());
[code]....
explain the errors that i get when i tried to compile car.java without using super keyword or without defining the constructor from the Car class ?
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Apr 18, 2014
i have been given a homework assignment where I have to get rid of a stack object I wrote for a program and replace it with the Stack<E> library java offers ie:
public class Stack<E> extends Vector<E> {
public Stack(); // constructor
public Boolean empty();
public E peek();
public E pop();
public E push(E item);
}
my question is do i have to actually write all these methods? Or can i just construct a stack and use the methods?
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Apr 19, 2015
I am facing with a JAVA code needed for my assignment.We are implementing a Card Game.. There is a Card Class which i have not included in the code below .We have a Dec class that has various arrays..
privateCard[] masterPack >> Is a master Pack that is initialized once and has all the 52 cards.
private Card[] cards >> Is the array that has the card values from masterPack array.
My problem is :
After I called the Deck object D1, it goes to the Deck COnstrucutor OK.It then populates the values of masterPack as per the allowmasterPack method.Then it stores the values of masterPack into cards array in the init method..I get an exception when line below is executed..
cards[pack * 52 + k]= masterPack[k];
I get a java.lang.NullPointerException error..
public class debug
{
public static void main(String[] args)
{
int pack = 1;
Dec D1;
D1 = new Dec(pack);
[oode]...
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Apr 12, 2014
i downloaded a sample database code of an online payroll system. How can i assemble it to know how it works.
the files include php and mysql files. it is to build an online payroll system
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Jun 7, 2014
You're given a number between 0 and 1 that corresponds to the probability of an event occurring.
0.7 is 70%, 0.235 is 23.5%, 0 is 0%, etc.
Someone tries to perform the event, but the event only has the given probability of occurring. Run the probability, and then if it's true, run the event. Otherwise don't run the event.
All I know how to do is generate random numbers (kind of), but if you have 0.2245 I really don't see how generating random numbers can efficiently perform that probability.....
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Jan 1, 2014
In my Java 2D game, two tanks are controlled as follows:
Tank 1
- Move forward: UP arrow
- Adjust angle of movement: LEFT and RIGHT arrows
Tank 2
- Move forward: W key
- Adjust angle of movement: A and D keys
It is possible to adjust the angle of a tank while it's moving forward (e.g., striking the left arrow or the right arrow while striking the up arrow). It's also possible to move both tanks forward simultaneously.
However, while one tank is moving forward and changing its angle (e.g., striking the up and the left/right key at the same time), the other tank is only able to move forward. That is to say, it cannot adjust its angle (e.g., striking W and A at the same time won't work, while the other tank is doing the same thing; the A key is ignored).
Why is that? Here's the relevant code:
In the Board class, that has most of the game logic:
Java Code:
while( game_is_running ) {
keysPressed1 = tank1.getKeys();
keysPressed2 = tank2.getKeys();
if(keysPressed1[0]==true)tank1.setAngle(tank1.getAngle()-3);
if(keysPressed1[1]==true)tank1.setAngle(tank1.getAngle()+3);
if(keysPressed1[2]==true){
[Code] .....
You will probably suggest I use Key Bindings, but is there a way to still use KeyListener and have all buttons work at the same time without errors?
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Jun 8, 2014
I am messing around with a Swing application and am a bit stuck as to how to join the front and back ends.This is the code for the DataManager class which is responsible for loading and saving objects and interfacing with rest of the system. The data I need displayed comes from a .txt file in the applications directory. I need to show certain aspects of the data in the JComboBoxes in the GUI class.
Java Code:
package programdataapplication;
import java.io.*;
import java.util.*;
public class DataManager {
[code]....
how I can join back-end and GUI classes.
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May 8, 2012
I am implementing JPA hibernate simple application using one to many relationship.
Relation ship is Comapny (1)----------- Department(*)
Company.java is as follow :
package com.web.pojo;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
[Code] .....
What I am doing is , I am adding new department to existing company. After execution above code
Table created are :
1. Company table with id and name
2. Department table with deptId , deptName , compId.
so at the time adding department , it does not threw any exception but updates records in department as
1(Id),Development(DeptName),null(compId) .
I am not getting why it is not updating compId column.
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May 27, 2014
As a brand new with Java I've created a small "Hello world" program using eclipse.
I would like to create an exe file from this application. Therefore, I need the jar file.
I can't find such a file with that extension in the folder where I saved the java project.
How can I manage this file?
I know it is a very basic issue, but as I mentioned it is the first "Hello world" test...
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Nov 20, 2014
I use a program called eclipse. I want to know how to build a house with the program. We use a pen in java. It is a drawing tool. I dont know how to do it.
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Mar 4, 2015
I should do, for my academic project, draw from a java project some information, for example, the class name and the relative method, and for each class even the package name where the class is. The information found must be saved an XML files...
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Dec 14, 2014
How can we create deployment descriptor for the java projects.
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Mar 6, 2015
I want to develop a website using jsp and servlets.but i have a few questions:
1: I want to use oracle for database, can i use express edition?
2: After writing the code how do i transfer the code to the client
3: How to deploy the website on internet
I am doing for first time
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May 10, 2014
I am suppose to submit my project as a WAR file but not sure how to do it.
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Apr 4, 2014
1. Modify the following class so that the two instance variables are private, there is a constructor that accepts both the player's name and sport and there are get and a set methods for each instance variable:
public class Player {
String name;
String sport;
}
2. You can pass an instance of this class to the JLabel constructor if you want to display text in the label.Select one:
a. myLabel
b. myText
c. String
d. JTextField
e. JLabelText
how to start making this work?cause i am not familiar with the terms here and want to complete this program and I am new to java programming?
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May 2, 2014
I want start a project on a medical diagnoses system. i want to get a clue on how i will go about the development...
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May 20, 2014
I am working on a Java Streaming Networking ( Client Serve ) project , among remote client can:
1 ) chat,
2 ) Share files,
3 ) Share Screen live streaming,
4 ) Access the remote system.
All are working well faster & live on networking. But if i host on the Hosting server the all process are working but in deadly slow streaming is not live..,
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