How To Rotate Object And Give Colour Inside

Mar 13, 2014

package id.ac.ub.ptiik.computergraphics;
import static org.lwjgl.opengl.GL11.*;
import static org.lwjgl.util.glu.GLU.*;
public class CG04_3DTransformation extends CGApplication {
protected boolean wireframe = true;

[Code] .....

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Object Created Inside Switch

Mar 2, 2014

I have create as short example which contains two classes Cat and Dog followed by a switch statement in the main method.

Class Cat

public class Cat {
private String name;
//Setter
public void setName(String pName)
{name = pName;}
//Getter
public String getName()
{return name;}
// Constructor
public Cat(String catName)
{name = catName;}

[code]....

My Issue is that after creating the objects within the switch statement, is there a way to return the objects back to the main method once created within the switch ?

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i need to run a piece of code which is inside a string object..is it possible?if so how?

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May 7, 2013

I'm new to Java, & am using Eclipse Helios. How do I change the text colour within the Quotation marks "Try Again" to red, or any other colour, so when I run it, it will display the new colour.

println("Try Again!!");

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Jan 6, 2015

I have two classes LightController & Circle. I need to use the LightController class to do the following:

Creates an instance of Circle with a diameter of 50 and a colour of OUColour.GREEN and assigns this new circle to the instance variable light.

Sets the xPos of light to 122.
Sets the yPos of light to 162.

I am struggling to write the correct line of code to set the colour to green and set diameter to 50.

Code for the two classes below.

import ou.*;
import java.util.*;
/**
* Class LightController
* This class uses the Circle class, and the Shapes window to simulate a disco light, that grows and shrinks and changes colour.
*/

public class LightController
{
/* instance variables */
private Circle light; // simulates a circular disco light in the Shapes window
private Random randomNumberGenerator;

[Code] ....

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Apr 22, 2015

How to create object for "class B" and call the "function_B" from other different class D where class D has no connection with class A? Here is my program.

public class A(){
void print(){}
}
class B{
void function_B(){}
}
class C{
void function_C(){}
}

Here, A, B, C are in the same package. But class D is in different package.

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Rotate Through JTabbedPanels At 5 Second Intervals

Apr 5, 2014

I have a list of Tabs which are dynamic depending on how many cars are in a database. If there are 10 cars there will be 10 tabs called car 1, car 2, car 3, etc. Each tab simply displays a photo and details of the car.

I have a JMenuItem that says start SlideShow and end SlideShow

What i would like to do is automatically slide through tabs when the start Slideshow is clicked.

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Way To Rotate JPanel In Java

Jul 28, 2014

Is there any way to Rotate jPanel in java (without using Paint Function).

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Mar 11, 2015

i want to rotate this shape using AffineTransform without changing its position and its size. i want the arrow to be in a straight line. how can i proceed??

I have use this but the place of the arrow is changing.

AffineTransform at = new AffineTransform();
at.rotate(Math.toRadians(45));
c.transform(at);

here is my code for arrow

import javax.swing.SwingUtilities;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.BorderFactory;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;

[Code]....

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Rotate Image In Java?

May 23, 2014

I have been trying to rotate an image on a certain degree, and still remain on the same position. I have tried g.rotate, but it just rotate around a center, and it does not keep the same position as before.

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Jul 21, 2014

I have written a code to rotate a Jlabel but i am facing some problems.

import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.MouseInfo;
import javax.imageio.ImageIO;

[Code] ....

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Apr 11, 2015

I need my Java program (I'm working in Eclipse if it matters) to detect if an image is a portrait or a landscape, but since i am directly downloading them from my camera they only have it written somewhere in metadata, the image width and height is the same for landscape and portrait. I have the rotation code and the rest of the program working, but I need to somehow get a variable (for example integer one) to tell me if it is a portrait or a landscape image. I tried getting to the metadata but my Eclipse decided that import com.drew.metadata.Metadata; cannot be resolved.

BufferedImage image = ImageIO.read(new File(imagePath, imageName)); and after I get the variable "orientation" it looks like this

int orientation = ???;
BufferedImage newImage = oldImage;
if (orientation>1){
newImage = rotate(oldImage);
}

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May 13, 2014

I'm trying to replicate the rol(rotate left) instruction in assembly though can only get as far as shifting the bits with '<<' or doing Long.rotateLeft(var, 5). Both of these method don't wrap around the bits as the rol instruction does.

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Jun 14, 2014

I am having a problem rotating a shape I am using the transformation rotation matrix and don't seem to be getting the results I expected. Now I know a lot of programmers will just tell me to use the Graphics2D rotate(theta) Method.But I would like to create this ability through writing the code.

package com.trigonometry;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;

[Code] ....

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Swing/AWT/SWT :: How To Rotate 2D Square Using Maths Equations Through OpenGL

Feb 23, 2015

So I need to create a square and make it rotate when the letter R is pressed and then make it stop when the letter R is pressed again. I need make it rotate using a maths equation that I can't figure it out myself right this moment.

Code for square:

package lab2;
public class Square {
public double [][] vertices = new double[4][2]; //not good to make this public
public Square(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) {
vertices[0][0]=x1;
vertices[0][1]=y1;
vertices[1][0]=x2;

[Code] ....

In the Square code there is a method to write an equation to rotate it but I can't figure that part out ....

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Why To Get Result Brand Null / Colour Null

Feb 28, 2015

public class Test {
public static void main(String[] args) {
Car c = new Car();
c.setInf("toyota", "red");
System.out.println("name: "+ c.brand + " colour: " + c.colour);

[code]....

Why do I get the result brand null, colour null? I know what null means but what am I missing here?

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JavaFX 2.0 :: Progress Indicator Doesn't Rotate Anymore (8u20)

Aug 28, 2014

Since the upgrade to JavaFX 8u20 my ProgressIndicator won't rotate anymore when using Caspian style. Is there any workaround for this?
 
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.ProgressIndicator;
import javafx.stage.Stage;
public class TestApp2 extends Application {
    public static void main(String[] args) {
    
[Code] ....

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May 11, 2014

how to give URL Connection to this?

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.net.*;
import java.io.*;
import javax.swing.*;
import javax.swing.event.*;
public class WebBrowser

[code]....

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Way To Give A Color To The JFrame

Nov 23, 2014

i've worked with java for 1 month, i'm designing some practices at Netbeans IDE. my problem is i tried to make a single colorful interface using panels, adding colors and i want to know if i exist a way to give a color to the JFrame (i tried to use the background color option but this didn't work).

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Sep 28, 2014

this is my code...in my code i cant give input form my console...it takes input but it doesn't save in a target file..My code is :-

package filetester;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
 
[code]....

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Why Array Initialization Does Not Give Error

Feb 18, 2014

int[][] array1 = {{1, 2, 3}, {}, {1, 2,3, 4, 5}};

it initializes 3 one dimentional array:

1 - {1, 2, 3}
2 - {}
3 - {1, 2,3, 4, 5}

but it only declares two dimensional arrays.

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Aug 14, 2014

I have just started to work on Java EE and I am not able to put the refrence of css and javascript in jsp page.

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My Jsp page palced inside Like: Web Container-> Home ->Home.jsp.

How to give the reference of js and css file in my Home.jsp page.

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Apr 3, 2014

The main method should creates a Student object with name as "Bill" and marks as {88,92,76,81,83} and print it.

Java Code:

class TestStudent {
public static void main(String args[]) {
Student1 st = new Student1();
st.name = "bill";
Student st1[] = new Student[6];
//This gives error
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Sep 10, 2014

I understand the stack part of it, just not the loop, specifically how you give the user more than one option to input.

Implement a printer driver that handles incoming print jobs. The driver will behave in the following manner:

- Loop giving the user the following options: ADD print job, DELETE latest print job, and
QUIT
- Recording the following information from each job: computer name, document name, and
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- When the user chooses to ADD, add a new print job to the top of the stack
- When the user chooses to DELETE, pop off the latest print job and output to the screen
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Oct 31, 2014

I found an exercise online to create a small program . I have this code that I have done so far:

import java.util.Scanner;
 public class Test {
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
long a = sc.nextLong(); long b = sc.nextLong();
long count = 0; // counter
for (long c = a; c <= b; c++) {
if (c % 2 == 0 || c % 3 == 0 || c % 5 == 0) {
count++;
}
}
System.out.println(count);
}
}

This program is suppose to give me the number of numbers which are dividable by either 2,3 or 5 in a range of a to b, where a<=b.

FOR EXAMPLE: a=5 b=8 ... output: 14 (since there are 14 numbers in between 5 and 8 which are dividable by either 2,3 or 5.)

It works great for all of the numbers except higher ones such as a=123456789012345678 b=876543210987654321. Here it doesn't give me any output. From what I know it is because the code is still running. But there must be a quicker way ...something that can modify the code so it finishes in the matter of seconds not hours. Something that will fasten the process of checking if the numbers are dividable...

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