I am getting the blank value in the array and this code is passed in IVR for playing the values since the first value is blank the prompts arrangements is disturbed. I want to replace the blank space or value by zero.
Doing an early exercise out of the Java Examples in a Nutshell book and they are asking for 'an efficient search algorithm to find the desired position' of two floats in a sorted array that bound an int. My try is below:
public static int search(int searchnum, float[] nums){ int low = 0; int high = nums.length - 1; int mid = (low + high) / 2; while(low < high){ if(nums[mid] < searchnum){
[Code] ....
This is working for the example but I would like to know if it is considered 'efficient' or even good?
I am trying to write a Float Array to a file but it is only writing the last line of the array to a file. I have also attached the entire assignment as a zip file with all required files. Here is the part of the code I am having issues with:
I'm supposed to write a program, which reads float numbers from a file, puts them in an array and sorts the array. After that I'm suppose to add the numbers so that when I add the 1 and 2 number of the array, I'm suppose to save the sum on the position of number 1, then I add number 3 and 4 and save the sum on position 2 etc. Also if my array has an uneven number of floats it's suppose to add the last 3 and not 2 numbers in the last iteration. The problem is the method throws an ArrayOutOfBounds Exception but I can't seem to find my mistake.
That's the second method. The first one just stores the sum in another variable and then returns it. Also is there a way in that I can Scanner/File/array etc. and initialize the array only once so I don't write the same code two times like it is now.
package sumOfFloats;
import java.io.File; import java.io.FileNotFoundException; import java.util.Arrays; import java.util.Scanner; public class SumOfFloats { public static float sumFloats() throws FileNotFoundException{
I am getting blank page only. I created sample JSF project with Facelet in Eclipse. The source code contains basic page with header, content & footer. I refer the site Support-Eclipse . I deployed war into Tomcat. I am unable to find the problem.
why my sub class object just gives me a blank when it comes to the String. It works just fine for the super class but when I get to the sub class the program just gives me a blank. I won't let me input anything for the String. On line 24 of the client I attempt to input a new String but it doesn't ever let me enter one so then any call to getName is just a blank.
I have altered my super and sub class as well as the client to try to get it to work. I tried a local variable in the client, I tried using protected in the super class, I tried a handful of other things.
import java.util.*; public class TryingItOutClient { public static void main(String[] args) { Scanner input = new Scanner(System.in);
i have problem with the following two java classes, driver class Reservations and Room class. When i run, it just show blank frame, tell me where i gone wrong.
import javax.swing.JOptionPane; import java.awt.*; import java.awt.event.*; public class Reservations extends Frame implements ActionListener { Color lightRed=new Color(255,90,90); Color lightGreen=new Color(140,215,40); Rooms room=new Rooms(5,3);
// 2009 nobelPrizeWinners.put("2009 Physics", new PrizeWinner[] {new PrizeWinner("Charles K.", "Kao"), new PrizeWinner("Willard S.", "Boyle"), new PrizeWinner("George S.", "Smith")}); nobelPrizeWinners.put("2009 Chemistry", new PrizeWinner[] {new PrizeWinner("Venkatraman", "Ramakrishnan"),
[Code] .....
At the moment, my output is:
2008: Chemistry: Osamu Shimomura, Martin Chalfie, Roger Y. Tsien 2008: Economics: Paul Krugman 2008: Literature: Jean-Marie Gustave Le Clézio 2008: Medicine: Harald zur Hausen, Françoise Barré-Sinoussi, Luc Montagnier 2008: Peace: Martti Ahtisaari
[Code] .....
However, I need a blank line between the final entry of 2008 and the first entry of 2009.
I am aware that the default value of char is 0. But in this program I am getting some unexpected output
public class TestClass12{ static int[] ia = new int[1]; static char ch; public static void main(String args[]) throws Exception{ System.out.println("ch:"+ch+" ia[ch]:"+ia[ch]); } }
Output: ch: ia[ch]:0
If you see the above output ch is printed as a blank space instead of 0, while the array default value is correctly printed by taking the char default value as index. Why is ch printed as blank space?
I'm having trouble filling in the blank squares on a Minesweeper game. What I am trying to is, if a user clicks a square and that square(s) does not have a bomb in it, or adjacent to it, should be set to an empty square.
Here's my recursive method below:
public void revealZeros(){ for(int x = -1; x <= 1; x++) for (int y = -1; y <= 1; y++){ Square zeroSquare = (Square)board.getSquareAt(xLocation+x, yLocation+y); if (!(zeroSquare.SquareHasBomb)){ setImage("images/empty.jpg"); } } revealZeros(); }
I am traversing around the square that the user clicks on with the use of two for-loops. Getting the square at that location and then applying an empty square image. On that square.
The function should then recurse itself and go onto the next square, if the next square does not have a bomb or does not have an adjacent bomb.
While debugging everything is going through... even it passes through the last line. But the pdf is not launching... showing only a blank screen in its status bar as "Connecting"... Earlier it was launching.. but suddenly this issue is raising up. Is there any IE settings need to be checked?
In the program below I'm trying to read the contents of several .txt files in the same diretory and create a new .txt file containing all of the data from each file. My output is generated in the console however my .text file is blank.
public static void main(String[] args) throws IOException { String target_dir = "C:Files"; String output = "C:Filesoutput.txt"; File dir = new File(target_dir); File[] files = dir.listFiles();
Will I'm tying in my code to set a default number for the JTextField that when the user decide not to put any numbers. Like let say that I want the textfield set to 0 , so then the user do not file it it won't make any problem to the program because its already has a default number.
Note: This is a small part of my code. when I leave it empty it take the 0 as a value, However, when I write in text field it also take the value of a 0 and the finalTotal is also = to 0.what I'm doing wrong.
How do I write a program that shows the max and the min value of a float integer? like for example in order to get the max value of a long integer we type System.out.println(Integer.MAX_VALUE); How would I do that for a float integer?
Ok, so in my quest to achive perfect ray casting and line/plane intersection, what I believe to be my last problem is precision of a float. I need some precision (0.000) but I am dealing with the difference of (-1.000000000) and (-1.000000002), where the second number would be completely off. I looked at DecimalFormat, but that just puts it into a string, I need actual loss of precision.
Java Code:
DecimalFormat form = new DecimalFormat("0.00"); String newX = form.format(x); String newY = form.format(y); String newZ = form.format(z); x = Float.parseFloat(newX); y = Float.parseFloat(newY); z = Float.parseFloat(newZ); mh_sh_highlight_all('java');
I am trying to write to an output file that the user names. I have flushed and closed the printwriter, so now I am at a loss. The console output works fine with the formatting, and the file is created, but I cannot get the file to populate. I have the following:
public static void main(String[] args) {
try { Scanner kb = new Scanner(System.in); System.out.print("Input file: "); String inputFileName = kb.next(); System.out.print("Output file: "); String outputFileName = kb.next(); // Construct the Scanner and PrintWriter objects for reading and writing File inputFile = new File(inputFileName); Scanner in = new Scanner(inputFile); PrintWriter out = new PrintWriter(outputFileName);
What's wrong with my Java program? When I open it using appletviewer, the applet opens but stays blank and an error message appears in Terminal.
Java Code:
import java.applet.*; import java.awt.*; public class DemoColor extends Applet { Font littleFont = new Font("Helvetica", Font.ITALIC, 6); public void paint(Graphics gr)
[Code] ....
Error Message:
Exception in thread "AWT-EventQueue-1" java.lang.IllegalArgumentException: Color parameter outside of expected range: Red Green Blue
at java.awt.Color.testColorValueRange(Color.java:310) at java.awt.Color.<init>(Color.java:395) at java.awt.Color.<init>(Color.java:369) at DemoColor.paint(DemoColor.java:24)
I'm having extreme difficulty in working with a Vector storing a column with a BigDecimal value, and converting that single value into a float. I'm not sure why the code was written this way, but basically, I'm working with something called a vector that has a single Big Decimal value/column (not sure what the correct terminology is), and I want to store that value in a float variable called "dp". However, I don't know how to convert from the Big Decimal to a float.
Code is below:
String s = ""; sql = "SELECT DiscountPercentRate FROM Attendees WHERE AttendeeId=" + attendeeId; Vector v2 = sqldb.getResults(sql); /*I know that sqldb.getResults(sql) returns a vector with a single BigDecimal column of 15.0, in the test example I'm using*/ if (!v2.isEmpty()) { Vector data2 = (Vector)v2.elementAt(0); if (!data2.isEmpty())
[Code] .....
In case you're wondering what the sqldb.getResults() method looks, like, here's a snippet of it - There's an else statement that triggers in my case, adding a BigDecimal column to a vector, and returns that vector.
Vector v = new Vector(); ... else { BigDecimal bd = rs.getBigDecimal(i); vCols.add(bd); } v.add(vCols); ... return v;
How can I take the single result of my SQL query in that Vector/Big Decimal thing, and turn that result into a float value?
I am currently learning about JOption pane. Using Strings I am accepting an input from the user and by using the Interer.ParseInt(variable) option I am able to multiply this two strings using the code below.
String Length; Length = JOptionPane.showInputDialog("Enter the Length"); String Breadth; Breadth = JOptionPane.showInputDialog("Enter the Breadth"); System.out.println(" Area is " + (Integer.parseInt(Breadth) * Integer.parseInt(Length))); System.exit(0);
Now My question is... How Do I make my code accept Decimal values. E.g. My Code should accept 10.02 as Length and 20.42 as Breadth and give the product a Decimal. How Do I do this???
