BorderLayout - How To Decrease The Height Of CENTER Position

May 5, 2014

Normally, the height of the CENTER component (or position) is greater than that of the NORTH and SOUTH components in a BorderLayout.

Is it possible to increase the size of the SOUTH component and decrease the size of the CENTER position because the jcomponents I want to add in the SOUTH component are bigger? or shall I have to change the layout and use some other layout?

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Creating Program That Will Estimate Child Height Based On Height Of Parents

Jun 19, 2014

I am trying to create a program that will estimate a child height based on the height of the parents. It should ask the user to enter a String representing the gender, so m or M for a male and f or F for a female. The program must handle both upper or lower case gender entries. I need it to ask the user for the height of both parents in two parts:

1. for Feet and store in an int variable.
2. for inches and store and int variable.

So for example if the father is 6' 2'', the user would enter 6 when asked for feet and 2 when asked for inches. Convert the height of the each parent to inches. hint 12" in one foot.

Apply the following formulas based on gender (must use an if statement(s)):

Hmale_child = ((Hmother * 13/12) + Hfather)/2
Hfemale_child = ((Hfather * 13/12) + Hmother)/2

I cannot figure out what is missing from my code

<import java.util.Scanner;
public class ChildHeight
{
public static void main(String[] args) {
Scanner scannerObject = new Scanner(System.in);
String gender;
String male;
String female;

[Code] ....

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How To Decrease Size Of Image

Mar 2, 2015

Java Code:

import java.awt.*;
import javax.swing.*;
public class addImage extends JFrame {
private ImageIcon img1;
private JLabel label1;
private ImageIcon img2;
private JLabel label2;

[Code] ....

I want to decrease the size of image 2 but code on line 18 is not working why????

I have attached the output ....

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Swing/AWT/SWT :: BorderLayout - Adding Multiple Video Game Oriented Objects Such As Sprites To JFrame?

May 24, 2014

I decided to write a small Java program to experiment around with BorderLayout, because I'm developing a Java game and I need to have 2 objects placed in a single JFrame at the same time, and everyone I asked said I need BorderLayout to do that.Before you answer: Also, is using BorderLayout the best option for adding multiple video game oriented objects such a sprites to a JFrame?

So the Java program I wrote is supposed to place a JButton on the JFrame and ALSO place a graphic component (a rectangle in this case). The problem is, only the button shows up, as can be seen in the image link below: URL....

Here is the code:

**main.java** --> The main method class + JFrame/JPanel/JButton constructor
import java.awt.BorderLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class main {

[code]....

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JButtons To Be In The Center Of JFrame

Apr 7, 2014

I am trying to create a game in java for my final project for schhol but am having problems with my jframe. I want my 3 Jbuttons to be in the center of the jframe and be vertical but can not seem to get the 3 buttons in the center of the jframe ....

import javax.swing.*;
import java.awt.Container;
import java.awt.*;
public class SnakeObject extends JFrame
{
public SnakeObject()
{
createframe();

[Code] ....

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Swing/AWT/SWT :: How To Center Lines Using SpringLayout

Feb 10, 2014

I'm using the Spring Layout Manager to put a form in a JPanel and I'm trying to center the lines horizontally so they will stay centered when the window is resized. Nothing I've tried has worked, I can't find anything on the web, and even my fallback of seeing how Netbeans does it fails as Netbeans doesn't seem to support the Spring Layout.

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Printing Rectangle With Hollow Center

Jun 17, 2014

So here's my code as it is right now:

Java Code:
public class PrintHoledRectangle
{
public static void main(String[] args)
{
int width = Integer.parseInt(args[0]) / 2 * 2 + 1;
int height = Integer.parseInt(args[1]) / 2 * 2 + 1;
int centre = width * height / 2 + 1;
int index = 0;

[Code] ....

The width of the rectangle to be printed is given by the first argument, the height by the second

The centre tile ("[_]") of the rectangle (to be printed as " ") is given by the formula: ((width*height)/2)+1, assuming you count each tile left-to-right, top-to-bottom

My thinking is that the programme keeps a running count (seen as 'index') so that, when the centre tile is to be printed, it outputs " ", otherwise "[_]", hence the if-else statement

Currently, it prints "[_]" to infinity

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JavaFX 2.0 :: StackPane Doesn't Center Another AnchorPane

Dec 8, 2014

In the documentation of StackPane i read: "The stackpane will attempt to resize each child to fill its content area. If the child could not be sized to fill the stackpane (either because it was not resizable or its max size prevented it) then it will be aligned within the area using the alignment property, which defaults to Pos.CENTER."

But as I add another Pane (Anchor- or BorderPane) this added Pane is shows always in left upper corner of the StackPane. How could I force my StackPane to center another AnchorPane?

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Program That Will Determine Total Weight And Center Of Gravity

Sep 18, 2014

You have been given the job of writing a program to assist pilots who fly the Beechcraft Starship-‐‑1 executive aircraft.As with any airplane, it is essential that the pilot know the total weight of the loaded plane at takeoff and its center of gravity. If the plane weighs too much, it won'ʹt be able to lift off. If the center of gravity is outside the limits established for the plane, it might be impossible to control. Your task is to write a program that will determine the total weight and center of gravity of this plane

Inputs: The number of crew members, number of passengers, weight of the forward baggage compartment contents, aft baggage compartment contents weight, and the amount of fuel in gallons are to be accepted as INTEGER values in the order stated. Be sure the input values are within acceptable ranges

Outputs:You must echo the input values, annotated with their appropriate names,calculate and display the total weight, and the center of gravity.

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Center Is Determined By Location Of Point Where Mouse Is Pressed

May 6, 2014

The goal is to desplays circles (max of 30) of fixed radius = 20, with the rightmost circle drawn in blue and left most circle in red and the rest are in white. The center is determined by the location of the point where the mouse is pressed. the number of circles is equivalent to number of mouse has been pressed_ the circles will be drawn only when you push the "draw" button.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.JPanel;
public class CirclePanel extends JPanel {
private final int WIDTH = 500, HEIGHT = 300;
private final int RDIUS = 20;
private final int MAX = 30;

[code]...

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Two Circles Overlap If Distance Between Their Center Points Is Less Than Sum Of Their Radius

May 1, 2015

Write a program that draws 20 circles, with the radius and location of each circle determined at random...... Two circles overlap if the distance between their center points is less than the sum of their radii...

There may be many problems with the code in general but what I'm struggling with is the distance and the totalradius portion. Visually, its inaccurate.

import java.awt.*;
import javax.swing.*;
public class CircleTest extends JPanel {
Circle []circles;
Circle []circleCenter;
Circle []all;
private int distance, totalradius, dx, dy;
private int radius,x,y;

[Code] ....

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JTable Height Should Fit To The Contents

Jul 24, 2014

I have a jTable with one or 40 rows in it.

The problem is, also when I have only one row in my jTable, the size of the jTable is a little more bigger than 40 rows.

How can I say the jTable, that she should scale to the size of the content?

I don`t want that the jTable is bigger than the content. For example the picture below:

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Error When Trying To Set Changing Height Value From JFrame

Jun 24, 2014

import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.event.KeyEvent;
public class Racquet {
private static final int WIDTH = 60;
private static final int HEIGHT = 20;

[code]....

The problem arises at the portion of the code that says

private int Y = game.getHeight() - 70;

I am not actually getting any compiler errors, but when I try to run the program, the command prompt pops up with this message:

Exception in thread "main" java.lang.NullPointerException
at Racquet.<init>(Racquet.java:19)
at Game.<init>(Game.java:10)
at Game.main(game.java:58)

What I want to do is make it so a GUI object that I created moves with the screen when I change the height. If I change it to private int Y = 330; the program works just fine.

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GUI Bars - Increment Height By About 10 Pixels

Nov 12, 2014

So I'm trying to make a bar graph, each bar will increment the height by about 10 pixels. To do this, I'm making an array of bars. For some reason, using fillrect I cannot not increase the size more than 10 by 10, if I do, it will only show the 10 by 10. I want the bars to increase in height by 10 each time.

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class AssortedAssortmentsOfSorts extends JFrame

[Code] .....

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Java Computing Height Of Stack

Jun 2, 2015

Compute the height of a stack. Then determine whether that value is found in the stack element .

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Finding Height Of Binary Search Tree?

Nov 13, 2014

So for an assignment I have to write a method that finds that height of this BST. I wrote this:

public int height(Node node)
{
if (node == null)
{
return 0;
}
else
{
return 1 +
Math.max(height(node.left),
height(node.right));
}
}

Which makes sense in my head. However, I added a couple of nodes in and realized I'm not sure how to call this method.

public static void main(String[] args) {
Tree<String, String> tree = new Tree<String, String>();
tree.add("A", "1");//some added stuff
tree.add("B", "2");
tree.add("C", "3");
tree.add("D", "4");
tree.add("E", "5");
tree.add("F", "6");
tree.add("G", "7");
tree.add("H", "8");
System.out.println(tree);
System.out.println(tree.height());

What exactly do I put in the parenthesis after tree.height? If you need to see more of my code I can do that but it is quite lengthy.

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Check If Height Is A Letter Between A To J - If Statement Always False

Jun 22, 2014

Why isn't heig ever equal to heightShipArray[count] no matter what letter I type in

String[] heightShipArray = {"A", "a", "B", "b", "C", "c", "D", "d", "E",
"e", "F", "f", "G", "g", "H", "h", "I", "i", "J", "j"};
boolean trueHeight = true; // checks if height is a letter between a-j/A-J
do {
Terminal.printLine("Input height with letters A to J");

[Code] ...

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JavaFX 2.0 :: How To Dynamically Set Height Of Text Area

Jul 9, 2014

I have a requirement where in the content of the text area is dynamically populated from the database. I am able to successfully retrieve and display the data on the text area.
 
However when the content is too large, I am not able to dynamically set the height of the text area. When I try to display the same as a label, the display is flawless, dynamically sets the height as per the content. So, I tried to create a label, with same content and dynamically bind the height to the preferred height as below, but it doesn't work.
 
               // Generate User Note Description
                TextArea textArea = new TextArea();
                Label text = new Label();
             
               // SETTING THE TEXT TO A LABEL TO RETRIEVE THE HEIGHT
               text.setText(usrNotes.getNote().trim());
               
[Code] ....

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JavaFX 2.0 :: How To Bind rows Height Of Two Tableview

Jan 20, 2015

I want to use to tableview one beside the other  so that they appear as a single table.  but I do not find how to bound the height rows of the two tableview.

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Print Isosceles Triangle Depending On Variables Height

Nov 14, 2014

The program needs to print an isosceles triangle depending on variables Height, BorderSymbol and Interior symbol, how to do that. Here is what i did so far :

{
int height = 5;
int i = 0;
int count = 0;
String line = "";
 
[code]....

and the output is a blanc page nothing on the screen only spaces...

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Draw V-shape Of Height N Entered By User With Stars

Apr 12, 2014

Am stuck in a problem that asks to write a program using nested for loops to draw a V-shape of height "n" entered by the user with stars .

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Return Height Of Heap Of Sand In Bottom Of Hourglass

Nov 18, 2014

I am working on program and have been struggling to get around step 5 and 6 given below.

I have got on with the first couple of points. Where to begin with steps 5 and 6.

Java Code:

class Hourglass {
int height;
int bottomHalf;
public Hourglass (int h) {
height =h;
}
public Hourglass (){
height=3;
}

/*Write a method dropGrain that simulates one grain of sand falling into the bottom half of the Hourglass. If all the sand is already at the bottom before a grain is dropped, this method should cause the hourglass to be flipped, meaning that all the sand will be in the top again. Then, one grain of sand should fall. */

//Hint: this method can be quite short. All you need to do is update one attribute.

public void dropGrain(){
}

/*Write a method getHeapHeight() which returns the height of the heap of sand in the bottom of the hourglass.

Hint: a triangle of height h contains h*h grains (=1+3+5+...+h).

So determining the height when the amount of sand in the bottom half is a square (1,4,9,16,...) is easy. Think about what happens if the amount of sand is not exactly a square.*/

public int getHeapHeight() {
} mh_sh_highlight_all('java');

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Calculating Area Of A Rectangle (height Multiply By Width)

Mar 19, 2014

I was suppose to create a simple Java program for calculating the area of a rectangle (height * width). Then check the user’s input, and make sure that they enter in a positive integer, and letting them try again if they enter in a negative number. (I'm not sure how to get them to try again.

I am suppose to use an "if" statements and indeterminate loops to achieve the solution. The program will have the following requirements:

1. Ask the user to enter in both a height and width (as an integer)
2. If the user enters in a negative number, display an error
3. If the user enters in a negative number, give them another chance to enter in the correct value
4. Calculate the area and display to the screen once two positive integers have been entered.

import java.util.Scanner;
public class RectangleAreaCalc
{
public static void main(String[] args)
{
int length;
int width;
int area;
 
[Code] ....

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Java Window Settings - Open With Certain Width And Height

May 19, 2014

Any way to get my Java window to open with a certain width and height. I've been googling and haven't found to much valuable information. Here is what I have so far.

import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
public class JavaWindow{
//Bring up the frame.
private JFrame f = new JFrame("JavaWindow");

[Code] ....

When you compile that it runs a small window. I would like that window to be bigger when the file opens.

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ActionListener And GetActionCommand - Volume For Length / Width And Height?

May 17, 2013

I do not understand the getActionCommand and ActionListener concepts. This code does not resolve the volume for length, width, and height.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.text.DecimalFormat;
import java.awt.Container;
public class rectangularSolid extends JApplet implements ActionListener {

[Code] ....

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Power Of Math - Calculate Volume Of A Cylinder By Asking User To Enter Height And Radius

Jan 29, 2015

How do you use power of math. I'm trying to write a calculator to calculate the volume of a cylinder by asking the user to enter the height and radius but when I use pow(2) it doesn't work. I imported java.lang.math class so i dont have to keep using math. for now my code runs just fine since I'm using radius * radius but I would really luv to use the power instead times each other when i have to use higher powers.

import java.util.Scanner;
import static java.lang.Math.*;
 public class Lab2 {
 public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
 
[Code] .....

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