Today I started to learn Java and I'm stuck here, I don't know how to refresh the panel using a button. Here is my code:
import java.awt.GridLayout;
import java.util.Random;
import javax.swing.*;
public class App {
public static int STR = 0, aPower = 0, sPower = 0, INT = 0, STA = 0, DEF = 0;
private static void GenerateStatus(){
Random randomGenerator = new Random();
STR = randomGenerator.nextInt(50);
aPower = randomGenerator.nextInt(50);
sPower = randomGenerator.nextInt(50);
INT = randomGenerator.nextInt(50);
STA = randomGenerator.nextInt(50);
DEF = randomGenerator.nextInt(50);
}
private static void FirstTimeInGame() {
String[] items = {"Warrior", "Mage", "Druid", "Scout"};
JComboBox combo = new JComboBox(items);
JTextField Name = new JTextField();
JPanel panel = new JPanel(new GridLayout(0, 1));
GenerateStatus();
panel.add(new JLabel("Name", SwingConstants.CENTER));
panel.add(Name);
panel.add(new JLabel("Class", SwingConstants.CENTER));
panel.add(combo);
panel.add(new JLabel("Stats", SwingConstants.CENTER));
panel.add(new JLabel("Strength " + STR));
panel.add(new JLabel("Attack Power " + aPower));
panel.add(new JLabel("Spell Power " + sPower));
panel.add(new JLabel("Intellect " + INT));
panel.add(new JLabel("Stamina " + STA));
panel.add(new JLabel("Armor " + DEF));
String[] buttons = {"Create!", "Randomize!", "Cancel"};
int result = JOptionPane.showOptionDialog(null,
panel,
"Welcome",
JOptionPane.YES_NO_CANCEL_OPTION,
JOptionPane.PLAIN_MESSAGE,
null,
buttons,
buttons[2]
);
if (result == JOptionPane.OK_OPTION) {
System.out.println(combo.getSelectedItem()
+ " " + Name.getText());
}
else if (result == JOptionPane.NO_OPTION){
GenerateStatus();
panel.validate();
panel.repaint();
}
else{
System.out.println("CANCEL");
}
}
public static void main(String[] args) {
FirstTimeInGame();
}
}
Function GenerateStatus() generate random numbers. When I press the button 'Randomize!' the window is closing.
Anyone can help me? Please?
Instead of just adding the JLabels to a panel, you need to store them in class level members.
When you click a button, you need to change the text in the existing labels.
Near this:
public static int STR = 0, aPower = 0, sPower = 0, INT = 0, STA = 0, DEF = 0;
Add
private JLabel strLabel;
Then panel.add(new JLabel("Strength " + STR)); becomes
strLabel = new JLabel("Strength " + STR);
panel.add(strLabel);
Now you can change the text of strLabel from somewhere else.
Related
I posted my full code below so you guys could have a solid understanding of what I want. When I click send, the text field clears but is not ready for input. I have to click for the input. I want it to be ready for the input immediately and textfield.setText("") will not work. Any ideas?
package javaapplication2;
import java.util.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.Ellipse2D;
import java.io.*;
import javax.swing.*;//class to use to create GUI's
import javax.swing.border.Border;
import javax.swing.plaf.FontUIResource;
/**
*
* #author Jordan Anthony Hangman with dictionary
*/
public class JavaApplication2 extends JFrame{
static JLabel[] labels = new JLabel[20];//labels for displaying words under 20 characters
static int counter = 0;
static int badguess = 0;//keeps track of wrong guesses
static String wordbank = " Letter Bank:";
static char[] guesses = new char[26];
static int nguesses = 0;
static int amountc = 0;
public JavaApplication2(){
}
public static void main(String[] args) throws FileNotFoundException, IOException {
//Loading images to use for hangman game
ImageIcon hanginit = new ImageIcon("hangmaninit.jpg");
ImageIcon hang1 = new ImageIcon("hangman1.jpg");
ImageIcon hang2 = new ImageIcon("hangman2.jpg");
ImageIcon hang3 = new ImageIcon("hangman3.jpg");
ImageIcon hang4 = new ImageIcon("hangman4.jpg");
ImageIcon hang5 = new ImageIcon("hangman5.jpg");
ImageIcon hang6 = new ImageIcon("hangman6.jpg");
//initializing array for index values
int wordcount = 10;
String[] words1 = new String[wordcount];
int[] wordssel = new int[10];
for (int j=0; j<10; j++){
wordssel[j] = -1;
}
//setting instructions
String Instructions = "To start the game, click on the new game button. You get 6 incorrect guesses for every word. Once you get 6 guesses, the game will end. Click the end game button to go back to the home page. If you want to play again, you can click New Game and you will be able to guess a different word. After every game, a message will appear to tell you how many words you have guesses correctly. When all the words are played, a dialog box will be shown that says Game Over. Exit this box to exit the game.";
//reading in the words
int number = 0;
try(BufferedReader br = new BufferedReader(new FileReader("words.txt")))
{
String line = br.readLine();
while(line != null){
words1[number] = line;
number++;
line = br.readLine();
}
}
//randomizes words
boolean flag = false;
int rand = 0;
int count = 0;
int wordcounter = 0;
while(!flag){
Random random = new Random();
rand = random.nextInt(wordcount);
count = 0;
for (int o=0; o<wordcount; o++){
if(wordssel[o] != rand){
count++;
}
}
if(count == wordcount){
wordssel[wordcounter] = rand;
wordcounter++;
}
if(wordcounter == wordcount){
flag = true;
}
}
String[] randwords = new String[10];
for(int o=0; o<10; o++){
randwords[wordssel[o]] = words1[o];
}
//initializing label
for(int i=0; i<20; i++){
labels[i] = new JLabel(" ");
labels[i].setFont(new Font("Serif", Font.BOLD, 30));
}
//initializing guessedchar array
for(int i=0; i<26; i++){
guesses[i] = ' ';
}
//value for window size
int xlim = 1200;
int ylim = 1200;
int xlim2 = 1600;
int ylim2 = 1600;
int xlim3 = 900;
int ylim3 = 600;
//value for x and y centers
int xcent = xlim/2 - 20;
int ycent = ylim/2;
int xcent2 = xlim2/2;
int ycent2 = ylim2/2 - 20;
int xcent3 = xlim3/2;
int ycent3 = ylim3/2 - 20;
//creating frames
JFrame frame1 = new JFrame("Hangman");//creates a new frame or window
frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// I thiunk exits when clicks on red x
frame1.setSize(xlim, ylim); //size of window in pixels
JFrame frame2 = new JFrame("Hangman");//creates a new frame or window
frame2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// I thiunk exits when clicks on red x
frame2.setSize(xlim2, ylim2); //size of window in pixels
JFrame frame3 = new JFrame();
frame3.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame3.setSize(xlim3, ylim3);
//change font size for label, button, and textfield
UIManager.put("Button.font", new FontUIResource(new Font("Dialog", Font.BOLD, 24)));
UIManager.put("Label.font", new FontUIResource(new Font("Dialog", Font.PLAIN, 24)));
UIManager.put("TextField.font", new FontUIResource(new Font("Dialog", Font.PLAIN, 24)));
UIManager.put("TextArea.font", new FontUIResource(new Font("Dialog", Font.PLAIN, 24)));
//creates buttons
JButton button1 = new JButton("New Game?");
button1.setBounds(xcent - 90, ycent - 165, 180, 130);//(xstart, ytop, width, height)
JButton button2 = new JButton("End Game?");
button2.setBounds(xcent - 90, ycent - 65, 180, 130);//(xstart, ytop, width, height)
JButton button3 = new JButton("Instructions");
button3.setBounds(xcent - 120, ycent, 240, 100);
JButton button4 = new JButton("Main Menu");
button4.setBounds(xcent - 100, ycent + 100, 200, 100);
//creating border
Border border = BorderFactory.createLineBorder(Color.BLACK, 4);
//creating labels
JLabel labelresult = new JLabel("");//label for win or losing game
labelresult.setBounds(400, 400, 400, 40);
JLabel labelhang = new JLabel();//label for hangman images
labelhang.setBounds(450, 375, 677, 620);
JLabel label3 = new JLabel("Hello");
label3.setBounds(200, 260, 500, 40);
JLabel label4 = new JLabel("Hello");
label4.setBounds(440, 1300, 800, 40);
JLabel label5 = new JLabel("Hello");
label5.setBounds(590, 1300, 800, 40);
JLabel label6 = new JLabel("Game Over");
label6.setBounds(380, 250, 200, 40);
JLabel lettersw = new JLabel();
JLabel label7 = new JLabel("How To Play");
label7.setBounds(500, 50, 200, 40);
JLabel label8 = new JLabel("Error");
label8.setBounds(590, 1300, 800, 40);
label8.setText("You can only enter one letter at a time.");
JLabel label9 = new JLabel("Error");
label9.setBounds(674, 1300, 800, 40);
label9.setText("You must enter a letter");
JLabel label10 = new JLabel(wordbank);
label10.setBounds(xcent2 - 200, 220, 400, 40);
JLabel label11 = new JLabel("You have already entered this letter.");
label11.setBounds(608, 1300, 800, 40);
JLabel label12 = new JLabel("You must exit game to guess.");
label12.setBounds(639, 1300, 800, 40);
//creating text area and setting properties
JTextArea texta1 = new JTextArea();
texta1.setOpaque(false);
texta1.setLineWrap(true);
texta1.setWrapStyleWord(true);
texta1.setBounds(100, 100, 1000, 600);
texta1.setText(Instructions);
//adding items to frames
frame1.add(button1);
frame1.add(button3);
frame2.add(button2);
frame2.add(labelhang);
frame3.add(label6);
frame2.add(label4);
frame2.add(label5);
frame3.add(label6);
frame1.add(label7);
frame1.add(texta1);
frame1.add(button4);
frame2.add(label8);
frame2.add(label9);
frame2.add(label10);
frame2.add(label11);
frame2.add(label12);
//set item properties
labelresult.setVisible(false);
button2.setVisible(false);
labelhang.setIcon(hanginit);
label4.setVisible(false);
label5.setVisible(false);
label7.setVisible(false);
texta1.setVisible(false);
button4.setVisible(false);
label8.setVisible(false);
label9.setVisible(false);
label10.setBorder(border);
label11.setVisible(false);
label12.setVisible(false);
//set frame properties
frame1.setLayout(null);
frame1.setVisible(true);//makes the frame visible to the user
frame3.setLayout(null);
//When End Game button is pressed
button2.addActionListener(new ActionListener(){
#Override
public void actionPerformed(ActionEvent e){
//end of game conditions
label5.setVisible(false);
label4.setVisible(false);
label12.setVisible(false);
button2.setVisible(false);
frame2.setVisible(false);
wordbank = " Letter Bank:";
badguess = 0;
amountc = 0;
if(counter == wordcount){
frame3.setVisible(true);//frame after all words gone through
}
else{
labelhang.setIcon(hanginit);
frame1.setVisible(true);
}
}
});
//When Instructions button is pressed
button3.addActionListener(new ActionListener(){
#Override
public void actionPerformed(ActionEvent e){
button1.setVisible(false);
button3.setVisible(false);
label7.setVisible(true);
texta1.setVisible(true);
button4.setVisible(true);
}
});
//When Main Menu is pressed
button4.addActionListener(new ActionListener(){
#Override
public void actionPerformed(ActionEvent e){
button1.setVisible(true);
button4.setVisible(false);
button2.setVisible(true);
label7.setVisible(false);
texta1.setVisible(false);
button3.setVisible(true);
}
});
//When New Game is press
button1.addActionListener(new ActionListener(){
#Override
public void actionPerformed(ActionEvent e){
//set item properties
frame2.setLayout(null);
frame2.setVisible(true);
frame1.setVisible(false);
button2.setVisible(false);
label8.setVisible(false);
label9.setVisible(false);
wordbank = " Letter Bank:";
label10.setText(wordbank);
//initializes labels and word
for(int i=0; i<20; i++){
labels[i].setText(" ");
}
String currentword = randwords[counter];
counter++;
//initializing previos guesses
for(int i=0; i<26; i++){
guesses[i] = ' ';
}
nguesses = 0;
//creating panel and panel components always create panels and all components in the same place that they are being added
JButton send = new JButton("Send");
JButton clear = new JButton("clear");
JTextField tf = new JTextField(1);
JLabel label = new JLabel("Enter Guess");
JPanel panel = new JPanel();
panel.add(label);
panel.add(tf);
panel.add(send);
panel.add(clear);
panel.setBounds(xcent2 - 250, ylim2 - 102, 500, 40);
frame2.add(panel);
//placing labels for letters
int letters = currentword.length();
int spacing2 = 800-(int)(letters*12.5);
for (int i=0; i<letters; i++){
labels[i].setText("_");
int spacing = 25 * i;
labels[i].setBounds(spacing2 + spacing, 1100, 25, 40);
frame2.add(labels[i]);
}
//when clear button is pressed
clear.addActionListener(new ActionListener(){
#Override
public void actionPerformed(ActionEvent e){
tf.setText("");
}
});
//when send button is pressed
send.addActionListener(new ActionListener(){
int amountc1 = 0;//keeps track of correctly guessed amount of words
int counter2 = 0;//keeps track of amount of correct letter guesses for each word
int letters2 = 0;
#Override
public void actionPerformed(ActionEvent e){
//initialize word and user guess
String currentword = randwords[counter-1];
letters2 = currentword.length();
char[] wordcurrent = new char[20];
wordcurrent = currentword.toCharArray();
String userguess = tf.getText();
userguess = userguess.toLowerCase();
tf.setText("");
//set properties
label4.setVisible(false);
label5.setVisible(false);
label8.setVisible(false);
label9.setVisible(false);
label11.setVisible(false);
//checking guess with word
boolean flag2 = false;
boolean flag3 = false;
//checking if word is already solved and user is entering data
System.out.println(badguess);
System.out.println(amountc);
System.out.println(nguesses);
if(nguesses > badguess + amountc){
label4.setVisible(false);
label5.setVisible(false);
label12.setVisible(true);
nguesses++;
flag2 = true;
}
else if(userguess.length() > 1){
label8.setVisible(true);
flag2 = true;
nguesses++;
}
else if(userguess.length() < 1){
label9.setVisible(true);
flag2 = true;
nguesses++;
}
else{
char[] guessuser = userguess.toCharArray();
char guessedchar = guessuser[0];
int charval = (int)guessedchar;//97-122 lowercase, 65-90 for uppercase
//checks for previous guesses
for(int t=0; t<=nguesses; t++){
if(guessedchar == guesses[t]){
flag3 = true;
break;
}
}
nguesses++;
//checking word against guess
for(int i=0; i<letters2; i++){
if(!flag3){
if(((charval>96 & charval<123))){
guesses[nguesses] = guessedchar;
if(wordcurrent[i] == guessedchar){
labels[i].setText(userguess);
labels[i].setVisible(true);
flag2 = true;
counter2++;
nguesses++;
amountc++;
}
}
else{
label9.setVisible(true);
flag2 = true;
}
}
else{
label11.setVisible(true);
flag2 = true;
}
}
}
//checks if full word is guessed correctly
if(counter2 == letters2){
this.amountc1++;
nguesses++;
button2.setVisible(true);
String correctword = "Well done! You have solved " + amountc1 + " out of " + counter;
label5.setText(correctword);
label5.setVisible(true);
counter2 = 0;
if(counter == wordcount){
label3.setText(correctword);
}
}
//checks for wrong guess and changes hangman picture accordingly
if (flag2 == false){
badguess++;
switch(badguess){
case 1:
wordbank += " " + userguess;
label10.setText(wordbank);
labelhang.setIcon(hang1);
break;
case 2:
wordbank += ", " + userguess;
label10.setText(wordbank);
labelhang.setIcon(hang2);
break;
case 3:
wordbank += ", " + userguess;
label10.setText(wordbank);
labelhang.setIcon(hang3);
break;
case 4:
wordbank += ", " + userguess;
label10.setText(wordbank);
labelhang.setIcon(hang4);
break;
case 5:
wordbank += ", " + userguess;
label10.setText(wordbank);
labelhang.setIcon(hang5);
break;
case 6:
nguesses++;
wordbank += ", " + userguess;
label10.setText(wordbank);
labelhang.setIcon(hang6);
button2.setVisible(true);
String incorrectword = "Sorry, The correct word was " + currentword + " You have solved " + amountc1 + " out of " + counter;
label4.setText(incorrectword);
label4.setVisible(true);
this.counter2 = 0;
if(counter == wordcount){
label3.setText(incorrectword);
}
break;
default:
break;
}
}
else{
nguesses--;
}
}
});
}
});
}
}
To focus text field after setText(""); method you can use the following,
textFieldName.requestFocus();
To center the text field you can use this code,
textFieldName.setHorizontalAlignment(JTextField.CENTER);
I would like to compute the sum of my inputs on the JTextField. I think i cannot convert the input to Integer. Any advice? Please see my codes below. I would appreciate the answer in advance thank you vey much
{
JPanel myPanel = new JPanel();
JTextField SGEAC1 = new JTextField("0",10);
String sgeac1tx = SGEAC1.getText();
int eac1sg = Integer.parseInt(sgeac1tx);
JTextField SGEAC2 = new JTextField("0",10);
String sgeac2tx = SGEAC2.getText();
int eac2sg = Integer.parseInt(sgeac2tx);
myPanel.add(new JLabel("SG-EAC1:"));
myPanel.add(SGEAC1);
myPanel.add(Box.createHorizontalStrut(15));
myPanel.add(new JLabel("SG-EAC2:"));
myPanel.add(SGEAC2);
myPanel.add(Box.createHorizontalStrut(15));
int IPLBW = JOptionPane.showConfirmDialog(null, myPanel, "BW",
JOptionPane.OK_CANCEL_OPTION);
int sumbw = eac1sg+eac2sg; }
if (IPLBW == JOptionPane.OK_OPTION) {
JTextArea ta = new JTextArea(100, 100);
ta.setText("INTERNATIONAL UPSTREAM LINK UPDATE"+"\n" + sumbw
+ "\n"+"-----------------------------"
+ "\n"+"TOTALS SG BW: "+ sumbw +"/"
+ "\n"+"-----------------------------"
+ "\n" + "SG via EAC1"+" " + SGEAC1.getText()+"G"
+ "\n" + "SG via EAC2"+" " + SGEAC2.getText()+"G");
JOptionPane.showMessageDialog(null, new JScrollPane(ta), "RESULT",
JOptionPane.INFORMATION_MESSAGE);
ta.setWrapStyleWord(true);
ta.setLineWrap(true);
ta.setCaretPosition(0);
ta.setEditable(false);
]
You may want the conversion done after the user has enter the value. You can try adding action listener to the JTextField components. Here is an example:
SGEAC1.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
String sgeac1tx = ((JTextField)e.getSource()).getText();
int eac1sg = Integer.parseInt(sgeac1tx);
System.out.println("SGEAC1 value = " + eac1sg);
}
});
Note that action listener will be called when user press the Enter key in the field.
When the program runs, it shows a window filling up with tiny (5x5) rectangles of various colors, with the red and green RGB values corresponding to the rectangles' position on the screen. The blue RGB value is random but applies to all the rectangles. I ask the user with an input dialog to guess the random value, then I use a message dialog to tell them how far off they are. Here's the program:
import java.util.*;
import java.util.concurrent.*;
import java.awt.*;
import java.awt.font.*;
import java.awt.event.*;
import java.applet.*;
import java.text.*;
import javax.swing.*;
public class TwoColorSpectrum extends Applet {
public void paint(Graphics squares) {
squares.setColor(Color.white);
squares.fillRect(0, 0, 1280, 750);
Random rectStr = new Random();
int randomRed,
randomGreen,
randomBlue,
randomX,
randomY,
rectNum;
do {
rectNum = rectStr.nextInt(9999999);
} while(rectNum < 5000000);
Random color3 = new Random();
randomBlue = color3.nextInt(255);
for(int h = 1; h <= rectNum; h++) {
Random xPosition = new Random();
randomX = xPosition.nextInt(1275);
double pcx = randomX / 1275.0;
double dRandomR = pcx * 255.0;
randomRed = (int)(dRandomR);
Random yPosition = new Random();
randomY = yPosition.nextInt(745);
double pcy = randomY / 745.0;
double dRandomG = pcy * 255.0;
randomGreen = (int)(dRandomG);
Color randomColor = new Color(randomRed, randomGreen, randomBlue);
squares.setColor(randomColor);
squares.fillRect(randomX, randomY, 4, 4);
}
//asking the user what blue value it is
JPanel panel = new JPanel();
JLabel label = new JLabel("Enter a value from 0 to 255.");
JTextField field = new JTextField(10);
JButton button = new JButton("Am I right?");
final int WIDTH = 350;
final int HEIGHT = 100;
class ButtonListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
String str;
int num;
str = field.getText();
num = Integer.parseInt(str);
int absOff = Math.abs((randomBlue - num));
if(absOff != 0) {
JOptionPane.showMessageDialog(null, "You were " + absOff
+ " off! The blue value is "
+ randomBlue + ".", "How much "
+ "were you off?",
JOptionPane.PLAIN_MESSAGE);
}
else {
JOptionPane.showMessageDialog(null, "That's right! The blue "
+ "value is " + randomBlue
+ ".", "How much " + "were you off?",
JOptionPane.PLAIN_MESSAGE);
}
}
}
JFrame frame = new JFrame();
frame.setTitle("Guess the Color!");
frame.setSize(WIDTH, HEIGHT);
button.addActionListener(new ButtonListener());
panel = new JPanel();
panel.add(label);
panel.add(field);
panel.add(button);
frame.add(panel);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}
How can I make it so that the message dialog only shows up once, then disappears when the OK button is pressed?
I am trying to create a java applet that uses text fields to add strings to a linked list. I can not get the search button to work. I am trying to get the string specified by the user in the text field and then search the list and print how many times the word has been found if any.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.LinkedList;
import java.util.ListIterator;
/**
* Created by joshuaogunnote on 31/10/2015.
*/
public class Applet2 extends JApplet {
private String text;
private int text1;
JTextField value1, value2;
LinkedList<String> list = new LinkedList<String>();
public JLabel jLabel;
public int count = 0;
I have created this search_count variable to count up how many times the word has been found.
public int search_count = 0;
public void init() {
JLabel prompt = new JLabel("Please enter a word");
JLabel prompt1 = new JLabel("Please enter a certain letter");
value1 = new JTextField(10);
value2 = new JTextField(10);
JPanel textPanel = new JPanel();
textPanel.add(prompt);
textPanel.add(value1);
add(textPanel, BorderLayout.NORTH);
textPanel.add(prompt1);
textPanel.add(value2);
JPanel centrePanel = new JPanel();
text = "";
jLabel = new JLabel(text);
centrePanel.add(jLabel);
add(centrePanel, BorderLayout.CENTER);
JButton but = new JButton("Add word");
JButton but1 = new JButton("Clear");
JButton but2 = new JButton("Remove first occurrence");
JButton but3 = new JButton("Remove all occurrences");
JButton but4 = new JButton("Display all words begging with certain letter");
JButton but5 = new JButton("Search");
JPanel butPanel = new JPanel();
butPanel.add(but);
butPanel.add(but1);
butPanel.add(but5);
butPanel.add(but2);
butPanel.add(but3);
butPanel.add(but4);
add(butPanel, BorderLayout.SOUTH);
but.addActionListener(new ButtonHandler(this));
but1.addActionListener(new ButtonHandler1(this));
but5.addActionListener(new ButtonHandler2(this));
}
class ButtonHandler implements ActionListener {
private Applet2 theApplet;
public ButtonHandler(Applet2 app) {
theApplet = app;
}
public void actionPerformed(ActionEvent e) {
text = theApplet.value1.getText();
try {
text1 = Integer.parseInt(text);
jLabel.setText("ERROR - The string " + "'" + text1 + "'" + " is not a valid word");
} catch (NumberFormatException e1) {
if (text.length() != 0) {
jLabel.setText("Word " + "'" + text + "'" + " has been added to the list");
count = count + 1;
} else {
jLabel.setText("ERROR - Please enter a word");
}
}
}
}
class ButtonHandler1 implements ActionListener {
private Applet2 theApplet;
public ButtonHandler1(Applet2 app) {
theApplet = app;
}
public void actionPerformed(ActionEvent e) {
list.clear();
jLabel.setText("List has been cleared");
count = 0;
}
}
class ButtonHandler2 implements ActionListener {
private Applet2 theApplet;
public ButtonHandler2(Applet2 app) {
theApplet = app;
}
public void actionPerformed(ActionEvent e) {
String text = theApplet.value1.getText();
Here I am trying to use a for loop to iterate through all the strings in the list and increment search_count if a match has been found. It does not however produce the correct answer. I am also trying to produce an ERROR message when the user tries to search for a word that is not in the list. How do I get the search_count variable and how do I get the ERROR message to show at the correct time?
for (int i = 0; i < list.size(); i++) {
if(text.equals(list.get(i))){
search_count = search_count + 1;
} else {
jLabel.setText("ERROR - word is not in the list")
}
jLabel.setText("Word " + "'" + text + "'" + " was found " + search_count + " time(s) in the list");
if (text.length() == 0) {
jLabel.setText("Please enter a word - The total number of words in the list are: " + count);
}
}
}
}
It seems you did not declare count as a variable before you used it in the loop. If the output is not what you want / expect, the condition of the loop gives you something else then what you think it does.
int count = 0;
I realize this is an unbelievably common issue and have looked very very thoroughly but have had no luck! It seems I am having an outOfBounds Exception issue. My code is as follows wuth errors just after! Thanks again :)
UPDATE:
Thanks for all of your many fast responses. Although it says there's an issue with Analysis Panel, I didn't know exactly if this was the cause as I have other classes which use it with no issues! But below is the other code. Thanks again!
public class AnalysisPanel extends JPanel {
private JTextArea overview_text = GuiComponentGenerator.getJTextArea("");
private JTextArea csv_text = GuiComponentGenerator.getJTextArea("");
private JComboBox analyser_choices;
private String[] analyser_class_names;
private LinkedHashMap<String, ImageAnalysis> analyser_outputs = new LinkedHashMap();
private JTextField[] weka_directory_texts;
private JTextField[] weka_tag_texts;
private JTextField weka_output_file_path_text = GuiComponentGenerator
.getJTextField("");
private JTextField weka_relation_text = GuiComponentGenerator
.getJTextField("");
public AnalysisPanel() {
GuiComponentGenerator.setLook(this);
analyser_class_names = ResourceAndClassDirectories
.getClassNamesInDirectory(ResourceAndClassDirectories.IMAGE_ANALYSERS_CLASS_STEM);
ArrayList<String> choices = new ArrayList(
Arrays.asList(analyser_class_names));
choices.add(0, "All");
analyser_choices = GuiComponentGenerator.getJComboBox(choices);
analyser_choices.addItemListener(new ItemListener() {
public void itemStateChanged(ItemEvent e) {
updateTextBoxes();
}
});
setLayout(new BorderLayout());
add(BorderLayout.NORTH,
GuiComponentGenerator.getJPanel(analyser_choices));
add(BorderLayout.CENTER, getTextsPanel());
add(BorderLayout.SOUTH, getWekaPanel());
}
private JPanel getWekaPanel() {
JPanel weka_panel = GuiComponentGenerator.getJPanel(new BorderLayout());
JPanel details_panel = GuiComponentGenerator.getJPanel(new GridLayout(
6, 1));
JPanel top_panel = GuiComponentGenerator
.getJPanel(new GridLayout(1, 2));
JPanel left_top_panel = GuiComponentGenerator.getJPanel(new BorderLayout());
JPanel right_top_panel = GuiComponentGenerator.getJPanel(new BorderLayout());
left_top_panel.add(BorderLayout.WEST, GuiComponentGenerator.getJLabel("Relation:"));
left_top_panel.add(BorderLayout.CENTER, weka_relation_text);
right_top_panel.add(BorderLayout.WEST, GuiComponentGenerator.getJLabel("Output to:"));
right_top_panel.add(BorderLayout.CENTER, weka_output_file_path_text);
top_panel.add(left_top_panel);
top_panel.add(right_top_panel);
weka_panel.add(BorderLayout.NORTH, top_panel);
weka_directory_texts = new JTextField[5];
weka_tag_texts = new JTextField[5];
JPanel labels_panel = GuiComponentGenerator.getJPanel(new GridLayout(1,
2));
labels_panel.add(GuiComponentGenerator.getCentreAlignedJLabel("Tag"));
labels_panel.add(GuiComponentGenerator
.getCentreAlignedJLabel("Image directory"));
details_panel.add(labels_panel);
for (int pos = 0; pos < 5; pos++)
details_panel.add(getDetailsPanel(pos));
weka_panel.add(BorderLayout.NORTH, top_panel);
weka_panel.add(BorderLayout.CENTER, details_panel);
JPanel weka_bordered_panel = GuiComponentGenerator
.getLeftBorderedJPanel(weka_panel, "Weka");
return weka_bordered_panel;
}
private JPanel getDetailsPanel(int pos) {
JPanel details_panel = GuiComponentGenerator.getJPanel(new GridLayout(
1, 2));
final JTextField weka_directory_text = GuiComponentGenerator
.getJTextField("");
JTextField weka_tag_text = GuiComponentGenerator.getJTextField("");
weka_directory_texts[pos] = weka_directory_text;
weka_tag_texts[pos] = weka_tag_text;
JPanel right_panel = GuiComponentGenerator
.getJPanel(new BorderLayout());
right_panel.add(BorderLayout.CENTER, weka_directory_text);
JButton choose_directory_button = GuiComponentGenerator
.getJButton(GuiComponentGenerator.FILE_DIALOG_ICON);
right_panel.add(BorderLayout.EAST, choose_directory_button);
choose_directory_button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
File directory = FileChooserDialog.getFile(
ResourceAndClassDirectories.SOURCE_DIRECTORY, "", true);
if (directory != null)
weka_directory_text.setText(directory.getPath());
}
});
details_panel.add(weka_tag_text);
details_panel.add(right_panel);
return details_panel;
}
public String[] getWekaRunDetails() {
String[] wrd = { weka_relation_text.getText(),
weka_output_file_path_text.getText() };
return wrd;
}
public ArrayList<String[]> getWekaImageDetails() {
ArrayList<String[]> image_details = new ArrayList();
for (int pos = 0; pos < 5; pos++) {
String[] details = { weka_directory_texts[pos].getText(),
weka_tag_texts[pos].getText() };
image_details.add(details);
}
return image_details;
}
private JPanel getTextsPanel() {
JPanel texts_panel = GuiComponentGenerator
.getJPanel(new BorderLayout());
csv_text.setRows(3);
csv_text.setFont(new Font("Courier", Font.PLAIN, 14));
texts_panel.add(BorderLayout.NORTH, GuiComponentGenerator
.getLeftBorderedJPanel(
GuiComponentGenerator.getJScrollPane(csv_text), "CSV"));
texts_panel.add(BorderLayout.CENTER, GuiComponentGenerator
.getLeftBorderedJPanel(
GuiComponentGenerator.getJScrollPane(overview_text),
"Overview"));
return texts_panel;
}
public String getChosenImageAnalyser() {
return (String) analyser_choices.getSelectedItem();
}
public void performAnalyses(final TaggedBufferedImage tbi) {
Thread thread = new Thread() {
public void run() {
analyser_outputs.clear();
String choice = (String) analyser_choices.getSelectedItem();
csv_text.setText("");
if (choice.equals("All")) {
for (String analyser_class_name : analyser_class_names)
performAnalysis(analyser_class_name, tbi);
} else
performAnalysis(choice, tbi);
updateTextBoxes();
}
};
thread.start();
}
private void updateTextBoxes() {
String overview = "";
String csv_headings = "|";
String csv_values = "|";
String choice = (String) analyser_choices.getSelectedItem();
for (String analyser_class_name : analyser_class_names) {
if (choice.equals("All") || choice.equals(analyser_class_name)) {
ImageAnalysis image_analysis = analyser_outputs
.get(analyser_class_name);
if (image_analysis != null) {
overview += analyser_class_name + "\n\n"
+ image_analysis.overview + "\n-----------------\n";
System.out.println("In Analysis Panel: image analsis csv headings " + image_analysis.csv_headings.size());
for (int pos = 0; pos < image_analysis.csv_headings.size(); pos++) {
String heading = image_analysis.csv_headings.get(pos);
String value = image_analysis.csv_values.get(pos);
while (heading.length() < value.length())
heading += " ";
while (value.length() < heading.length())
value += " ";
csv_values += value + "|";
csv_headings += heading + "|";
}
}
}
}
overview_text.setText(overview);
csv_text.setText(csv_headings + "\n" + csv_values);
}
private void performAnalysis(String analyser_class_name,
TaggedBufferedImage tbi) {
try {
overview_text.setText("Analysing " + analyser_class_name);
Class c = Class
.forName(ResourceAndClassDirectories.IMAGE_ANALYSERS_CLASS_STEM
+ "." + analyser_class_name);
ImageAnalyserInterface analyser = (ImageAnalyserInterface) c
.newInstance();
ImageAnalysis image_analysis = analyser.analyseImage(tbi);
analyser_outputs.put(analyser_class_name, image_analysis);
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
Update: Now working, although the issue was in the below, it needed to be changed in the Colour file itself!
Thanks all :)
If there are 6 elements in the array, then index 5 will be the final index, as it is zero indexed - that is, 0,1,2,3,4,5 is 6 elements
Well based on the title you are trying to access index 6 in an array of size 6. This is not possible since arrays in Java run from index 0 to size-1.
Your max possible index is therefore 5 in an array of size 6.