import javax.swing.*;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.*;
[code]....
My issues is at the bottom, I can't get the clear button to clear, well it clears but it also show the JOptionPane. I couldn't find the edit button on the page
I have a code that clear old text then add new text to text file afterthat download the file but the problem my code dose not add new text
FileInputStream fileToDownload ;
private static final int BYTES_DOWNLOAD = 1024;
response.setContentType("text/plain");
String name = request.getParameter("n");
String text = new String(request.getParameter("text").getBytes("iso-8859-1"), "UTF-8");
[Code] ....
How to clear old text then add new text to text file
How to clear console screen ? I am using Linux machine.
1) Runtime.getRuntime().exec("clear"); // this is not working. Not clearing the screen
2) for ( int i = 0; i < SOME_NUMBER; i++)
System.out.println();
2nd way is working but i think it is not a good option as i need to move scroll bar again and again.
Here is the code I wrote:
import javax.swing.*;
import java.awt.MenuBar;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class NewCalculator implements ActionListener {
//assign button clicked number and answer onto variables.
[Code] .....
Also what is the code I need to use to do the percentage and square root calculation in the calculation. Cos I am not sure about the sign I am required to use to do the calculation.
The if statement is where the code to make the clear button (C and CE) work.
Follow the //? FIRST and SECOND notes, then I understood that Java has GOTO as Keyword for future versions and that usually one can avoid GOTO using break inside the cycles, but I need a jump( salto) in the code.
import java.util.Scanner;
public class ArrayOrdinati {
public static void main (String[] args){
int[] Array = {5,3,1};
int e=Array.length;
int b;
[Code] .....
how to clear my java output console?
View Replies View RelatedI have wrote the method delete turtle below. Which is part of turtle collection (Hashmap)
public void deleteTurtle(String name) {
Iterator iterate = turtles.keySet().iterator();
while(iterate.hasNext()) {
String key = (String)iterate.next();
if(key.equals(name)) {
iterate.remove();
} else {
setErrorMessage("notFound");
}
}
}
I need to now modify it so the method ensures that the turtles shape collection is cleared before the Turtle object is deleted.
I have 5 radio buttons in my gui, I have a reset button which I have resetting everything else but now I am looking to remove the dot from the selected RB when you press the reset.
View Replies View Relatedwhy CLEAR button not sweeping text(I tried t1.setText(null);, but it not working. And second, in SAVE button is same problem, it is not working. I want it to saved text go to SAVED frame. What i need to write.
public class panabut {
public static void main(String[] args) {
JFrame f = new JFrame("Buttons");
f.setSize(400, 400);
f.setLocationRelativeTo(null);
f.setDefaultCloseOperation(f.EXIT_ON_CLOSE);
f.setVisible(true);
JPanel p = new JPanel();
f.add(p);
JButton b = new JButton("Register");
[code]....
I have following code
int id1=1;
String city1="Dehradun";
float rupee1=2.1f;
double salary1=2.123;
[code]....
But when i again view it using datainputstream it display original Values.how to view correct data written from outputstream as it is in textpad file
I've got my clear button to work on most of the stuff I want, however I cant figure out how to fix the price to stop adding up. e.g. hit a button image with a price of 599.99, hit the clear button to empty, select price of 599.99 again then it display 1199.98.
sofa method
if (source == jBSofa) {
System.out.println("Sofa"); {
dTotal = dTotal + 599.99;
jTotal.setText(Double.toString(dTotal));
jTotal.setText(String.format("%.2f", dTotal));
}
Reset method
private void Reset() {
jTTotal.setText(" ");
jTotal.setText(" "); //sub total clear
jTTotalTotal.setText(" ");
Attached image(s)
I am trying to clear all graphical objects of a certain type(all trees in particular). I have never had any issues doing so, and this method normally works well along with these variables:
Java Code:
public static ArrayList<GRect> historyT;
public static ArrayList<GOval> historyL;
public static GRect trunk;
public static GOval leave;
public void deleteTrees() {
//clears all tree trunks and leaves
[Code]...
That is this normally worked until I started added more trees to the screen after they had all been erased. What happens is that it won't clear all of them unless the max has been reached, that is 6. It will remove all trees up till the last one if the max has not been reached. In other words here is my screen before the clear all if the max has not been reached(* is a tree, _ is erased): ****
Here is it after: _ _ _ _ *
So my question is, is why aren't all the trees deleted? Why does it leave one left behind?
I'm having a small problem using a jTable.
After calling the .clearSelection() methode of the table object, the cell clicked in when selecting the table row, keeps it's focus.
How do I remove the focus of the cell?
package com.example.imc;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
[Code] ....
I am very Java illiterate and I need to know how would i set all the variables in the first class to null or 0 to make a new method to clear everything.
import java.util.Arrays;
import java.util.Scanner;
public class studentMethods
{
private double totalScore;
private int count;
[Code] ....
I need to design the layout of this calculator and also add one more button that clears textbox strings one by one instead of whole.
import javax.swing.*;
import java.awt.FlowLayout;
import java.awt.event.*;
public class Calculator extends JFrame{
double value1;
double value2;
String operator;
double result;
[Code] .....
I'm back with a question about the Black Jack assignment. I've created a working game that works for one round, as well as a reset button that's able to clear the board of the old hand. However the runGame() loop, which checks whether a player has played his hand seems to freeze the program the second time around
private void initNewGame(){
dealer.addCard();
for(int i = 0; i < numberofplayers; i++){
players[i].addCard(); //draws card, adds score and paints card to the board
players[i].setStatus(false); //makes the buttons usable in the players[] class
[Code] .....
I know it's probably not optimal having an while loop constantly running to check the status, but I can't seem to figure out why it freezes.
I have four buttons with different names and depending on which button is pressed I want to change the label to be displayed. Center is the name of the label the other directions are buttons. The label should change if a different button is pressed. The error I get is that it cannot be converted to String.
public void actionPerformed(ActionEvent event){
Object source = event.getSource();
if (source == east){
center.setText(east);
}
if (source == west){
center.setText(west);
[code]...
So, Once again I'm attempting to make a Who Wants to Be a Millionaire GUI game. This is the actual game screen code
package WWTBAM;
import java.awt.BorderLayout;
public class GUIGame extends JFrame implements ActionListener {
public static int moves = 0;
public static boolean finished = false;
public static boolean correct = true;
[Code] ....
When ever try and change the buttons text outside of the actual GUIGame constructor i can't. Like in the main method or the action listener.
The code won't work if you copy paste because it's a part of a larger package.
Here's my coding so far...I want to be able to change what the JLabel says when clicking on one of the buttons for example : when clicking on UP i want it to say "Going Up!"...how do i do this?
import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JLabel;
public class BorderLayoutJFrame extends JFrame {
[Code] .......
i just started java and I'm trying to change the JLabel text by clicking on the JButton however it isn't working,
import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JLabel;
public class BorderLayoutJFrame extends JFrame
{
public static final int WIDTH = 400;
public static final int HEIGHT = 400;
[Code]...
I have made a window using JFrame and on my JPanel I have added 3 components: 2 JTextFields ("field1" and "field2") and inbetween them a JButton ("switch"). My goal is to switch the value of field1 to field2 and vice versa when the JButton is clicked. I thought this ActionListener which I have added to my JButton would achieve my goal:
public void actionPerformed(ActionEvent e) {
field2.setText(field1.getText());
field1.setText(field2.getText());
}
However, it changes the value of field2 into the value of field1 but not the other way around.
I am trying to have a Jbutton (blocker02) act like a wall that will not allow a moving Jbutton to pass through. I tried using " if (blocker02. getBounds (). intersects(r_wall)) but it hasn't been successful.
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.geom.Rectangle2D;
[code]....
This is the code that I wrote but I have two problem with two buttons one of them ... I want to delete the selected text inside the text Area which represented as b[8] and the other button that I want to select parts of the texts which represented as b[0]....
Here is the code..
package KOSAR2;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
[Code] .....
I am checking how to do following task.
01. pickup the selected text file and read the line by line and output the text in to visual text pane.
what i did:.
01. I wrote code that read the text file and output in to jave console/ also some of the interface.
the code read txt file:
Java Code:
String fileName = "C:/Users/lakshan/Desktop/lawyer.txt";
File textFile = new File(fileName);
Scanner in = new Scanner (textFile);
while(in.hasNextLine()){
[code]....
so it will read any text file dynamically and output to the text pane in interface. I think scanner code must be execute after the select the file from the browser and set the scanned result in to variable. then later out put the var as string in some jswing component?
[attachment=38859:bcourt.jpg]I/m not used to Timers, so this will be my first time using it and I don't know how. I've been searching the internet for an hour but I can't find an answer into it. I'm currently doing a basketball game which has a Buttons (Shoot,Dribble,Hold) and I need those timers for my buttons to work. Her's the code:
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class BasketBall extends JPanel implements ActionListener
{
JButton shootButton = new JButton("SHOOT");
JButton drbblButton = new JButton("DRIBBLE");
JButton holdButton = new JButton("HOLD");
[Code]...