I am trying to write a date program. I have it written and running correctly, except one issue. I cannot get the numerical date to display correctly. I know it is an issue with printf. I don't know anything about printf. Here is my method to return the day
public int getDay() {
return day;
}
When it returns, it is literally returning just the numeric date. I need it to show up as 02 or 03 instead of 2 or 3, respectively.
the dates are printing out of order. It should appear MM/DD/YYYY however with my code its printing DD/YYYY/MM.Here is my code.
public class DateTest { public static void main(String args[]){ Date date1 = new Date( 7, 4, 2004 ); System.out.print( "The initial date is: " ); date1.displayDate();
I have an requirement of splitting a Date-Time String i.e. 2013/07/26 07:05:36 As you observe the above string has Date and Time with space in between them.
Now I want just want split the string not by delimiter but by length i.e. after 10th place and then assign it to 2 variable i.e. Date <----2013/07/26 and Time <---07:05:36 separately.
1. Write an algorithm that asks the user for your birth date and the current date and displays how many days has passed since then (remember that April, June, September and November has 30 days, February has 29 on leap years, and the rest 31)
2. Write an algorithm that asks the user a number (save it as N) and displays the N term of the Fibonnacci series (take it as 1, 1, 2, 3, 5 ...)
I have created the GUI interface required but there seems like there has to be an easier way. I also don't know how to get the input from the textboxes turn them into doubles and store them in an array. Here is my code.
//Here are the imports
import javax.swing.*; import java.awt.*; import java.awt.event.*; public class StatJFrame extends JFrame { // here are the declarations final int FRAME_WIDTH = 480; final int FRAME_HEIGHT = 360; int x = 0;
My program here asks for an unit to choose from (fl.oz, gal, oz, lb, in, ft, or mi), asks how much of it they have, and asks for the unit they wish to convert to (mL, l, g, kg, mm, cm, m, or km).
My program works, refusing to convert from silly conversions such as gal to cm, telling you to re-input if they enter anything other than fl.oz, gal, etc.
The only thing I cannot figure out is if the user inputs something like "foo" when the program prompts the user for how much of the unit they have. My goal is to have the program say something like "That is not a number! Please enter a numerical value."
My current dilemma right now is that if the user inputs something other than a number, it will catch the exception and print a line telling the user it's not a number, except, it does it infinitely (stuck in a loop). Here is my code:
import java.util.InputMismatchException; import java.util.Scanner; public class UnitConversions { public static void main(String[] args) { Scanner s = new Scanner(System.in); double result = 0;
Given a Date such as this sampleDate (120, 08, 02), does SimpleDateFormat transform this given sampleDate using (sampleDate.get(Calendar.DATE)) ?
Issue is that without the SimpleDateFormat the days are outputting correctly but starting with 1,2,3,4 etc and when I apply the SimpleDateFormat to the above Date I only get 01,01,01 etc...
A group of my classmates and I were discussing strings. We were asked, "What circumstances would you want to convert a text string to numerical data?" but we couldn't think of any answers outside of counting characters within the string for various applications.
I tried running the code for trapezoidal rule. It's my project in Numerical Methods, here's the code:
static double trapezoidRule (int size, double[] x, double[] y) { double sum = 0.0, increment; for ( int k = 1; k < size; k++ ) {//Trapezoid rule: 1/2 h * (f0 + f1) increment = 0.5 * (x[k]-x[k-1]) * (y[k]+y[k-1]); sum += increment;
[Code] ....
It cannot be compiled and I always get FileNotFoundException. I found on Javadocs that this will be thrown when a file with the pathname does not exist.
I am trying to create an event handler for two JTextFields to only allow numerical input. It consumes all letter but for some reason the "n" key still gets through. I have the spaghetti code below.
public void keyTyped(KeyEvent in) { char input = in.getKeyChar(); if (in.getSource() == scaleField){ if (!(Character.isDigit(input) || (input==KeyEvent.VK_BACK_SPACE) ||
My code's not working and I don't know why. I'm trying to read numerical values from a file and saving all instances where a letter is entered instead of a number to a string to be referenced as an error at a later point on in the code. However, there's an error and like I've stated before, I don't know what caused it.
public static void validateData() throws IOException{ File myfile = new File("gradeInput.txt"); Scanner inputFile = new Scanner(myfile); for (int i=0; i<33; i++){ if(inputFile.hasNextDouble()){ double d = inputFile.nextDouble(); if (d<0||d>99999){
[Code] ....
This is the error that returns.
Exception in thread "main" java.util.NoSuchElementException at java.util.Scanner.throwFor(Scanner.java:838) at java.util.Scanner.next(Scanner.java:1347) at Paniagua_Grading.validateData(Paniagua_Grading.java:29) at Paniagua_Grading.main(Paniagua_Grading.java:6)
How do i make the 'date' column show only the date and 'timeIn' and 'timeOut' column only show the time. In my database table my 'date' column is a date type and 'timeIn' and 'timeOut' column is time.
I am building a program that when you enter 1. it allows you to setup an item. However running my code my second if statement runs through.
import java.util.Scanner; public class InventorySystem { public static void main(String [] args) { Scanner input = new Scanner(System.in); int count=0; int inputEntered=0; int numberOfItems=0; double cost=0.00; String item; String description;
So i am creating a File object which has a text file passed to it. I then try to do logic with it using a BufferedReader. However, I get a FileNotFoundException on the using my code below. The Error is on the BufferedReader line. I
Java Code: System.out.println("--Reading text file--"); File file = getFile(c,fileName) // Returns a File object. System.out.println(file); // Shows me the file is looking correct. Displays contents to console. BufferedReader br = new BufferedReader(new FileReader(file)); System.out.println("BUFFERED"); while((line = br.readLine()) != null) { try { // Do Logic } catch(Exception ex){ ex.printStackTrace(); } br.close(); mh_sh_highlight_all('java');
I want to write simple game. Why if I press button UP and RIGHT it not move diogonally, may be it have special code. And how I need to write correctly border and gravity?
public class Main { public static void main(String args[]) { JFrame frame = new JFrame("Stickman"); Ground ground = new Ground(); frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE); frame.setSize(710, 480);
I am trying to implement a game using the ACM graphics. For the game, I am trying to make the main frame a Grid of Cells.I made a Grid class which extends GCanvas:
import acm.graphics.GCanvas; public class Grid extends GCanvas{ private final static int WIDTH = 300; private final static int HEIGHT = 300; private final int DIMENSION = 5; Cell[][] grid;
If I run this code. I can manipulate it so that X wins. When the third X button is pressed, there is no display saying that X has won and that the game is over. I have read over this code for days and still have not figured it out.
import java.awt.*; import java.awt.event.*; import javax.swing.*; public class TicTacToe extends JFrame implements ActionListener, WindowListener{ public JFrame window = new JFrame("window");
I am currently trying to make a method that will enable a jLabel to be dragged across the screen. I want to be able to drag the object pretty much anywhere on the screen(I hope to eventually make a destination for it where it can be dropped but I will get to that later). I have looked on various places on the internet on how to achieve this and the most simple solution does something like this:
Java Code:
jLabel6.setText("jLabel6"); jLabel6.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() { public void mouseDragged(java.awt.event.MouseEvent evt) { jLabel6MouseMoved(evt); } }); private void jLabel6MouseDragged(java.awt.event.MouseEvent evt) { x = evt.getX();
[Code]...
This actually works somewhat but it is very faulty. For example the jLabel keeps appearing and reappearing as I drag it. Furthermore when I drag it I can see a duplicate Jlabel being dragged as well in the top left hand screen. So how might I fix this?
how to calculate the child's height in float value fixing value where if you choose male the accurate value, but if you choose female the value will be accurate too.
int heightMother, heightFather; int heightMaleChild, heightFemaleChild; String gender;
I'm unable to get the output for "AverageDriver" to print correctly(5 scores in descending order and average). The output displays the scores the same way they are entered and the average is always zero. The output for the Average program works fine and with the correct output.
import java.util.Scanner; //This class keeps 5 scores entered by the user public class Average { private int[] data; private double mean; public Average()
My console SQL Query app is not giving me the desired output.I am sure its might have something to do with my SQL Query.Its missing the description of the stock items and it prints a new line for each user as per number of stocks an repeats the user details and then prints the stock listed by that user(only want the user listed once with all its stocks). I will add my files and current output and desired out put below.
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"); String url="jdbc:odbc:StockTracker";
I'm working on a homeowork assignment here URL... and I can't get the graph to work correctly. I'm not really sure how to print the string of names, gender and rank at the point on the graph. Also I'm just wondering if I set up the scanner to find names right.
import java.util.*; import java.io.*; import java.awt.*; public class Names { public static final int year = 1880; public static final int decades = 14; public static final int decadeWidth = 70;
