如何在java中添加更新的JTextfield值？[文档监听器]
我已经读了很多关于如何使用DocumentListener的文章，但是我的代码不起作用。基本上我制作了一个食品计算器，所以当一些食品被插入第一个JTextField时，它会计算出每x克所需产品的所有食品值 在底部有一个JTextfield，我想用它存储您所消费的所有产品的kcal值之和简而言之，每当您更改产品并按enter键时，它都会更改kcal值，因此我需要按enter键获得的所有产品的总和。如何在java中添加更新的JTextfield值？[文档监听器],java,swing,Java,Swing,我已经读了很多关于如何使用DocumentListener的文章，但是我的代码不起作用。基本上我制作了一个食品计算器，所以当一些食品被插入第一个JTextField时，它会计算出每x克所需产品的所有食品值 在底部有一个JTextfield，我想用它存储您所消费的所有产品的kcal值之和简而言之，每当您更改产品并按enter键时，它都会更改kcal值，因此我需要按enter键获得的所有产品的总和。 package Grafika; import java.awt.BorderLayout; im
package Grafika;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.EventObject;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
public class Food_Calculator {
public static final String[] FOOD_NAME = { "Jogurt, sadni", "Jogurt 1,6%",
"Smetana, sladka 30%", "Sir,sveži", "Sir, mozzarella",
"Sir, ovčji", "Sir, parmezan", "Sirotka", "Brokoli", "Buče",
"Čebula, bela", "Čebula, rdeča", "Česen", "Endivija",
"Fižol, sveži", "Gobe, sveže", "Grah", "Jajčevec", "Krompir",
"Kumare, sveže", "Kumarice, kisle", "Motovilec", "Paprika, rumena",
"Paprika, zelena", "Paradižnik", "Pesa, kuhana", "Peteršilj",
"Por", "Rabarbara", "Radič, rdeči", "Radič, zeleni",
"Solata, zelena", "Špinača", "Zelena", "Zelje, glavnato belo",
"Zelje, glavnato rdeče", "Zelje, kitajsko", "Ananas", "Avokado",
"Banana", "Borovnice", "Breskev", "Brusnice", "Češnje", "Fige",
"Grenivka", "Grozdje, belo", "Grozdje, črno", "Hruška (cela)",
"Jabolko (celo)", "Jagode", "Kivi", "Kokos", "Lešniki, suhi",
"Limona", "Lubenica", "Mandarina", "Mandlji", "Maline", "Marelica",
"Nektarina", "Olive, zrele", "Orehi, suhi", "Pomaranča",
"Ribez, črni", "Ribez, rdeči", "Robide", "Rozine", "Slive",
"Šipek, suhi", "Višnje", "Goska, cela", "Kokoš, cela",
"Konjsko meso", "Piščanec, cel", "Piščanec, belo meso",
"Piščanec, temno meso", "Pršut", "Puran, cel", "Puran, belo meso",
"Puran, temno meso", "Raca, cela", "Svinjina, nemastna",
"Teletina, nemastna", "Vratovina, sušena", "Hobotnica", "Lignji",
"List", "Losos", "Postrv, potočna", "Sardelice", "Tuna",
"Tunina v olju", "Ajda", "Koruzni kosmiči", "Kruh, pšenični, črni",
"Ovseni kosmiči", "Prepečenec, beli", "Pšenična moka, bela",
"Pšenični otrobi", "Pšenica, suho zrnje", "Riž, neglaziran",
"Riž, glaziran", "Riževa moka", "Rž", "Borovničev sok",
"Breskov sok", "Cola", "Čaj, indijski", "Grozdni sok",
"Hruškov sok", "Jabolčni sok", "Kava", "Marelični sok",
"Pesin sok", "Pomarančni sok, sveži", "Čokolada, jedilna",
"Čokolada, mlečna", "Čokolada, mlečna, z lešniki", "Med" };
public static final double[] FOOD_VALUES = { 99.0, 43.0, 284.9, 95.0,
224.0, 447.0, 411.0, 25.9, 25.0, 15.0, 35.0, 23.0, 136.0, 11.0,
143.0, 35.9, 67.0, 25.0, 87.0, 14.0, 10.0, 20.0, 22.0, 16.0, 14.0,
32.0, 20.0, 28.0, 12.0, 12.0, 24.0, 15.1, 21.9, 12.0, 22.0, 20.0,
12.0, 46.0, 126.0, 79.0, 56.0, 37.0, 45.7, 48.0, 41.0, 28.0, 60.0,
54.0, 29.0, 40.0, 26.0, 40.0, 346.0, 701.0, 26.9, 21.0, 34.0,
565.0, 25.0, 50.7, 50.0, 128.5, 648.0, 35.0, 28.0, 21.0, 29.0,
246.0, 56.6, 169.2, 57.8, 198.0, 186.0, 110.0, 230.0, 116.0, 126.0,
496.0, 143.0, 134.0, 186.0, 341.0, 161.0, 113.0, 450.0, 73.0, 77.0,
83.0, 217.0, 86.0, 98.0, 225.0, 287.0, 333.7, 368.0, 222.0, 372.0,
354.0, 350.0, 206.0, 326.0, 329.0, 349.0, 349.0, 347.5, 45.0, 48.0,
39.0, 57.8, 65.7, 51.9, 49.7, 301.0, 56.6, 36.0, 45.0, 475.0,
517.9, 529.8, 302.7 };
public static final double[] FOOD_VALUES_OH = { 18.6, 3.9, 1.0, 3.0, 0.0,
0.0, 2.0, 5.1, 2.5, 3.4, 8.5, 5.2, 28.0, 1.1, 21.8, 5.8, 10.6, 5.6,
20.8, 1.8, 2.0, 3.0, 5.0, 2.8, 2.8, 7.0, 1.0, 5.0, 2.0, 1.7, 3.2,
2.8, 3.9, 2.0, 3.8, 3.5, 2.0, 11.6, 7.0, 19.2, 14.3, 9.1, 10.8,
11.7, 9.5, 7.0, 15.3, 13.5, 7.6, 10.0, 6.2, 9.0, 3.7, 6.0, 8.2,
5.3, 8.0, 4.3, 5.6, 12.8, 12.4, 2.6, 8.8, 5.8, 6.6, 4.4, 6.4, 64.4,
14.6, 79.2, 14.3, 0.0, 0.2, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 1.1, 0.8, 1.0, 0.9, 0.0, 0.0, 0.0, 0.0, 0.0, 72.9,
85.1, 43.0, 72.8, 77.5, 80.1, 26.8, 72.0, 72.0, 78.0, 78.0, 74.0,
11.1, 11.7, 10.0, 0.0, 16.6, 3.2, 13.8, 28.5, 14.6, 8.0, 10.4,
46.8, 56.9, 51.3, 82.3 };
public static final double[] FOOD_VALUES_P = { 1.0, 3.3, 22.0, 14.0, 19.9,
25.6, 40.0, 0.9, 3.0, 0.6, 0.9, 0.9, 6.0, 0.9, 10.1, 2.8, 5.8, 1.2,
2.1, 0.7, 0.5, 2.0, 0.2, 0.9, 0.9, 1.1, 4.0, 2.0, 1.0, 1.2, 1.8,
1.3, 2.2, 1.0, 1.9, 1.7, 1.0, 0.5, 2.0, 1.1, 0.6, 0.6, 0.4, 0.8,
1.3, 0.0, 0.6, 0.5, 0.2, 0.0, 0.6, 1.0, 3.2, 14.0, 1.1, 0.4, 0.9,
16.9, 0.9, 1.0, 0.9, 1.1, 15.8, 0.9, 0.9, 1.1, 1.3, 1.1, 0.7, 4.5,
1.2, 21.8, 21.5, 20.9, 17.6, 21.8, 19.1, 18.9, 20.0, 22.0, 20.9,
20.0, 20.0, 21.3, 20.8, 15.3, 16.0, 15.9, 22.5, 14.7, 17.4, 21.5,
22.8, 11.7, 8.6, 8.0, 8.0, 11.6, 9.8, 14.1, 10.2, 7.0, 7.0, 7.0,
9.3, 0.1, 0.3, 0.0, 14.1, 0.2, 0.3, 0.1, 12.5, 0.3, 1.0, 0.7, 7.9,
7.7, 9.3, 0.3 };
public static final double[] FOOD_VALUES_M = { 1.1, 1.6, 30.0, 3.0, 16.1,
40.0, 27.0, 0.3, 0.4, 0.0, 0.0, 0.0, 0.0, 0.3, 1.5, 0.5, 0.4, 0.2,
0.1, 0.5, 0.2, 0.0, 0.3, 0.0, 0.0, 0.1, 0.0, 0.0, 0.0, 0.0, 0.5,
0.2, 0.3, 0.0, 0.1, 0.1, 0.0, 0.0, 10.0, 0.3, 0.6, 0.0, 0.7, 0.1,
0.0, 0.0, 0.0, 0.1, 0.0, 0.0, 0.0, 0.0, 36.0, 69.0, 0.3, 0.0, 0.0,
53.5, 0.0, 0.2, 0.0, 13.8, 61.4, 0.0, 0.0, 0.0, 0.0, 0.0, 0.2, 1.5,
0.3, 12.3, 11.0, 2.8, 17.7, 3.2, 5.5, 46.9, 7.0, 2.0, 11.2, 29.0,
9.0, 3.1, 40.2, 0.8, 1.0, 1.7, 13.4, 3.0, 3.2, 15.5, 22.0, 2.4,
1.6, 2.0, 7.5, 1.9, 1.2, 5.5, 2.0, 2.0, 1.0, 1.0, 1.8, 0.0, 0.0,
0.0, 0.0, 0.0, 0.2, 0.0, 15.4, 0.1, 0.0, 0.2, 39.7, 32.3, 35.6, 0.0 };
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
JPanel plosca = new MainPanel();
GraficnoOgrodje.ustvariOkno(
"Kalkulator Hranilnih Vrednosti v1.0", plosca, false);
}
});
}
private static class MainPanel extends JPanel implements ActionListener {
private JButton enter;
private JTextField calculations, food_field, value2, value3, value4,
value5, grams, total1;
private JLabel food, food_field_entered, kcal, value1, OH, P, FATT,
blank, blank1, blank2, portion, total;
public MainPanel() {
setLayout(new BorderLayout());
// First panel on Main panel
JPanel PanelOne = new JPanel();
this.add(PanelOne, BorderLayout.NORTH);
PanelOne.setBackground(Color.lightGray);
PanelOne.setLayout(new FlowLayout());
food = new JLabel();
food.setText("Insert food type: ");
portion = new JLabel(" insert a portion in grams (g): ");
grams = new JTextField(10);
food_field = new JTextField(10);
food_field.setEditable(true);
enter = new JButton("Enter");
PanelOne.add(food);
PanelOne.add(food_field);
PanelOne.add(portion);
PanelOne.add(grams);
PanelOne.add(enter);
// Second Panel on Main panel
JPanel PanelTwo = new JPanel();
this.add(PanelTwo, BorderLayout.CENTER);
Dimension two = new Dimension(500, 150);
PanelTwo.setPreferredSize(two);
PanelTwo.setLayout(new GridLayout(3, 8, 0, 10));
food_field_entered = new JLabel(" Food: ");
value1 = new JLabel();
blank = new JLabel();
blank1 = new JLabel();
kcal = new JLabel(" Kcal: ");
value2 = new JTextField(10);
OH = new JLabel(" OH: ");
value3 = new JTextField(10);
P = new JLabel(" Proteins: ");
value4 = new JTextField(10);
FATT = new JLabel(" Fatt: ");
value5 = new JTextField(10);
PanelTwo.add(food_field_entered);
PanelTwo.add(value1);
PanelTwo.add(blank);
PanelTwo.add(blank1);
PanelTwo.add(kcal);
PanelTwo.add(value2);
PanelTwo.add(OH);
PanelTwo.add(value3);
PanelTwo.add(P);
PanelTwo.add(value4);
PanelTwo.add(FATT);
PanelTwo.add(value5);
// Third Panel on Main panel
JPanel PanelThree = new JPanel();
this.add(PanelThree, BorderLayout.SOUTH);
PanelThree.setBackground(Color.lightGray);
PanelThree.setLayout(new FlowLayout());
Dimension three = new Dimension(getWidth(), 30);
PanelThree.setPreferredSize(three);
total = new JLabel("You consumed: ");
total1 = new JTextField(10);
total1.setEditable(true);
PanelThree.add(total);
PanelThree.add(total1);
// Fourth Panel on Main panel
JPanel PanelFour = new JPanel();
this.add(PanelFour, BorderLayout.EAST);
PanelFour.setPreferredSize(new Dimension(5, getHeight()
- PanelThree.getHeight()));
// Fifth Panel on Main panel
JPanel PanelFive = new JPanel();
this.add(PanelFive, BorderLayout.WEST);
PanelFive.setBackground(Color.lightGray);
PanelFive.setPreferredSize(new Dimension(0, getHeight()
- PanelThree.getHeight()));
// adding ActionListener to the MainPanel, for the button
enter.addActionListener(this);
}
public void actionPerformed(ActionEvent e) {
Object source = e.getSource();
if (source == enter) {
String foodText = food_field.getText();
String gramsText = grams.getText();
double grams2 = Double.parseDouble(grams.getText());
value1.setText("[ " + foodText + " / " + gramsText
+ " gramov ]");
// calculations of food values for x grams...
double kcal1 = 0.0;
double oh = 0.0;
double protein = 0.0;
double fatt = 0.0;
for (int i = 0; i < FOOD_NAME.length; i++) {
if (foodText.equals(FOOD_NAME[i])) {
kcal1 = grams2 / 100 * FOOD_VALUES[i];
oh = grams2 / 100 * FOOD_VALUES_OH[i];
protein = grams2 / 100 * FOOD_VALUES_P[i];
fatt = grams2 / 100 * FOOD_VALUES_M[i];
}
}
value2.setText(String.format(" %.1f ", kcal1));
value3.setText(String.format(" %.1f g", oh));
value4.setText(String.format(" %.1f g", protein));
value5.setText(String.format(" %.1f g", fatt));
}
value2.getDocument().addDocumentListener(new DocumentListener() {
@Override
public void changedUpdate(DocumentEvent e) {
// TODO Auto-generated method stub
warn();
}
@Override
public void insertUpdate(DocumentEvent e) {
// TODO Auto-generated method stub
warn();
}
@Override
public void removeUpdate(DocumentEvent e) {
// TODO Auto-generated method stub
warn();
}
public void warn() {
double total = 0.0;
double kcal1 = Double.parseDouble(value2.getText());
total = kcal1 + total;
total1.setText(String.format(" %.1f Kcal", total));
}
});
}
}
package Grafika;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.EventObject;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
public class Food_Calculator {
public static final String[] FOOD_NAME = { "Jogurt, sadni", "Jogurt 1,6%",
"Smetana, sladka 30%", "Sir,sveži", "Sir, mozzarella",
"Sir, ovčji", "Sir, parmezan", "Sirotka", "Brokoli", "Buče",
"Čebula, bela", "Čebula, rdeča", "Česen", "Endivija",
"Fižol, sveži", "Gobe, sveže", "Grah", "Jajčevec", "Krompir",
"Kumare, sveže", "Kumarice, kisle", "Motovilec", "Paprika, rumena",
"Paprika, zelena", "Paradižnik", "Pesa, kuhana", "Peteršilj",
"Por", "Rabarbara", "Radič, rdeči", "Radič, zeleni",
"Solata, zelena", "Špinača", "Zelena", "Zelje, glavnato belo",
"Zelje, glavnato rdeče", "Zelje, kitajsko", "Ananas", "Avokado",
"Banana", "Borovnice", "Breskev", "Brusnice", "Češnje", "Fige",
"Grenivka", "Grozdje, belo", "Grozdje, črno", "Hruška (cela)",
"Jabolko (celo)", "Jagode", "Kivi", "Kokos", "Lešniki, suhi",
"Limona", "Lubenica", "Mandarina", "Mandlji", "Maline", "Marelica",
"Nektarina", "Olive, zrele", "Orehi, suhi", "Pomaranča",
"Ribez, črni", "Ribez, rdeči", "Robide", "Rozine", "Slive",
"Šipek, suhi", "Višnje", "Goska, cela", "Kokoš, cela",
"Konjsko meso", "Piščanec, cel", "Piščanec, belo meso",
"Piščanec, temno meso", "Pršut", "Puran, cel", "Puran, belo meso",
"Puran, temno meso", "Raca, cela", "Svinjina, nemastna",
"Teletina, nemastna", "Vratovina, sušena", "Hobotnica", "Lignji",
"List", "Losos", "Postrv, potočna", "Sardelice", "Tuna",
"Tunina v olju", "Ajda", "Koruzni kosmiči", "Kruh, pšenični, črni",
"Ovseni kosmiči", "Prepečenec, beli", "Pšenična moka, bela",
"Pšenični otrobi", "Pšenica, suho zrnje", "Riž, neglaziran",
"Riž, glaziran", "Riževa moka", "Rž", "Borovničev sok",
"Breskov sok", "Cola", "Čaj, indijski", "Grozdni sok",
"Hruškov sok", "Jabolčni sok", "Kava", "Marelični sok",
"Pesin sok", "Pomarančni sok, sveži", "Čokolada, jedilna",
"Čokolada, mlečna", "Čokolada, mlečna, z lešniki", "Med" };
public static final double[] FOOD_VALUES = { 99.0, 43.0, 284.9, 95.0,
224.0, 447.0, 411.0, 25.9, 25.0, 15.0, 35.0, 23.0, 136.0, 11.0,
143.0, 35.9, 67.0, 25.0, 87.0, 14.0, 10.0, 20.0, 22.0, 16.0, 14.0,
32.0, 20.0, 28.0, 12.0, 12.0, 24.0, 15.1, 21.9, 12.0, 22.0, 20.0,
12.0, 46.0, 126.0, 79.0, 56.0, 37.0, 45.7, 48.0, 41.0, 28.0, 60.0,
54.0, 29.0, 40.0, 26.0, 40.0, 346.0, 701.0, 26.9, 21.0, 34.0,
565.0, 25.0, 50.7, 50.0, 128.5, 648.0, 35.0, 28.0, 21.0, 29.0,
246.0, 56.6, 169.2, 57.8, 198.0, 186.0, 110.0, 230.0, 116.0, 126.0,
496.0, 143.0, 134.0, 186.0, 341.0, 161.0, 113.0, 450.0, 73.0, 77.0,
83.0, 217.0, 86.0, 98.0, 225.0, 287.0, 333.7, 368.0, 222.0, 372.0,
354.0, 350.0, 206.0, 326.0, 329.0, 349.0, 349.0, 347.5, 45.0, 48.0,
39.0, 57.8, 65.7, 51.9, 49.7, 301.0, 56.6, 36.0, 45.0, 475.0,
517.9, 529.8, 302.7 };
public static final double[] FOOD_VALUES_OH = { 18.6, 3.9, 1.0, 3.0, 0.0,
0.0, 2.0, 5.1, 2.5, 3.4, 8.5, 5.2, 28.0, 1.1, 21.8, 5.8, 10.6, 5.6,
20.8, 1.8, 2.0, 3.0, 5.0, 2.8, 2.8, 7.0, 1.0, 5.0, 2.0, 1.7, 3.2,
2.8, 3.9, 2.0, 3.8, 3.5, 2.0, 11.6, 7.0, 19.2, 14.3, 9.1, 10.8,
11.7, 9.5, 7.0, 15.3, 13.5, 7.6, 10.0, 6.2, 9.0, 3.7, 6.0, 8.2,
5.3, 8.0, 4.3, 5.6, 12.8, 12.4, 2.6, 8.8, 5.8, 6.6, 4.4, 6.4, 64.4,
14.6, 79.2, 14.3, 0.0, 0.2, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 1.1, 0.8, 1.0, 0.9, 0.0, 0.0, 0.0, 0.0, 0.0, 72.9,
85.1, 43.0, 72.8, 77.5, 80.1, 26.8, 72.0, 72.0, 78.0, 78.0, 74.0,
11.1, 11.7, 10.0, 0.0, 16.6, 3.2, 13.8, 28.5, 14.6, 8.0, 10.4,
46.8, 56.9, 51.3, 82.3 };
public static final double[] FOOD_VALUES_P = { 1.0, 3.3, 22.0, 14.0, 19.9,
25.6, 40.0, 0.9, 3.0, 0.6, 0.9, 0.9, 6.0, 0.9, 10.1, 2.8, 5.8, 1.2,
2.1, 0.7, 0.5, 2.0, 0.2, 0.9, 0.9, 1.1, 4.0, 2.0, 1.0, 1.2, 1.8,
1.3, 2.2, 1.0, 1.9, 1.7, 1.0, 0.5, 2.0, 1.1, 0.6, 0.6, 0.4, 0.8,
1.3, 0.0, 0.6, 0.5, 0.2, 0.0, 0.6, 1.0, 3.2, 14.0, 1.1, 0.4, 0.9,
16.9, 0.9, 1.0, 0.9, 1.1, 15.8, 0.9, 0.9, 1.1, 1.3, 1.1, 0.7, 4.5,
1.2, 21.8, 21.5, 20.9, 17.6, 21.8, 19.1, 18.9, 20.0, 22.0, 20.9,
20.0, 20.0, 21.3, 20.8, 15.3, 16.0, 15.9, 22.5, 14.7, 17.4, 21.5,
22.8, 11.7, 8.6, 8.0, 8.0, 11.6, 9.8, 14.1, 10.2, 7.0, 7.0, 7.0,
9.3, 0.1, 0.3, 0.0, 14.1, 0.2, 0.3, 0.1, 12.5, 0.3, 1.0, 0.7, 7.9,
7.7, 9.3, 0.3 };
public static final double[] FOOD_VALUES_M = { 1.1, 1.6, 30.0, 3.0, 16.1,
40.0, 27.0, 0.3, 0.4, 0.0, 0.0, 0.0, 0.0, 0.3, 1.5, 0.5, 0.4, 0.2,
0.1, 0.5, 0.2, 0.0, 0.3, 0.0, 0.0, 0.1, 0.0, 0.0, 0.0, 0.0, 0.5,
0.2, 0.3, 0.0, 0.1, 0.1, 0.0, 0.0, 10.0, 0.3, 0.6, 0.0, 0.7, 0.1,
0.0, 0.0, 0.0, 0.1, 0.0, 0.0, 0.0, 0.0, 36.0, 69.0, 0.3, 0.0, 0.0,
53.5, 0.0, 0.2, 0.0, 13.8, 61.4, 0.0, 0.0, 0.0, 0.0, 0.0, 0.2, 1.5,
0.3, 12.3, 11.0, 2.8, 17.7, 3.2, 5.5, 46.9, 7.0, 2.0, 11.2, 29.0,
9.0, 3.1, 40.2, 0.8, 1.0, 1.7, 13.4, 3.0, 3.2, 15.5, 22.0, 2.4,
1.6, 2.0, 7.5, 1.9, 1.2, 5.5, 2.0, 2.0, 1.0, 1.0, 1.8, 0.0, 0.0,
0.0, 0.0, 0.0, 0.2, 0.0, 15.4, 0.1, 0.0, 0.2, 39.7, 32.3, 35.6, 0.0 };
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
JPanel plosca = new MainPanel();
GraficnoOgrodje.ustvariOkno(
"Kalkulator Hranilnih Vrednosti v1.0", plosca, false);
}
});
}
private static class MainPanel extends JPanel implements ActionListener {
private JButton enter;
private JTextField calculations, food_field, value2, value3, value4,
value5, grams, total1;
private JLabel food, food_field_entered, kcal, value1, OH, P, FATT,
blank, blank1, blank2, portion, total;
public MainPanel() {
setLayout(new BorderLayout());
// First panel on Main panel
JPanel PanelOne = new JPanel();
this.add(PanelOne, BorderLayout.NORTH);
PanelOne.setBackground(Color.lightGray);
PanelOne.setLayout(new FlowLayout());
food = new JLabel();
food.setText("Insert food type: ");
portion = new JLabel(" insert a portion in grams (g): ");
grams = new JTextField(10);
food_field = new JTextField(10);
food_field.setEditable(true);
enter = new JButton("Enter");
PanelOne.add(food);
PanelOne.add(food_field);
PanelOne.add(portion);
PanelOne.add(grams);
PanelOne.add(enter);
// Second Panel on Main panel
JPanel PanelTwo = new JPanel();
this.add(PanelTwo, BorderLayout.CENTER);
Dimension two = new Dimension(500, 150);
PanelTwo.setPreferredSize(two);
PanelTwo.setLayout(new GridLayout(3, 8, 0, 10));
food_field_entered = new JLabel(" Food: ");
value1 = new JLabel();
blank = new JLabel();
blank1 = new JLabel();
kcal = new JLabel(" Kcal: ");
value2 = new JTextField(10);
OH = new JLabel(" OH: ");
value3 = new JTextField(10);
P = new JLabel(" Proteins: ");
value4 = new JTextField(10);
FATT = new JLabel(" Fatt: ");
value5 = new JTextField(10);
PanelTwo.add(food_field_entered);
PanelTwo.add(value1);
PanelTwo.add(blank);
PanelTwo.add(blank1);
PanelTwo.add(kcal);
PanelTwo.add(value2);
PanelTwo.add(OH);
PanelTwo.add(value3);
PanelTwo.add(P);
PanelTwo.add(value4);
PanelTwo.add(FATT);
PanelTwo.add(value5);
// Third Panel on Main panel
JPanel PanelThree = new JPanel();
this.add(PanelThree, BorderLayout.SOUTH);
PanelThree.setBackground(Color.lightGray);
PanelThree.setLayout(new FlowLayout());
Dimension three = new Dimension(getWidth(), 30);
PanelThree.setPreferredSize(three);
total = new JLabel("You consumed: ");
total1 = new JTextField(10);
total1.setEditable(true);
PanelThree.add(total);
PanelThree.add(total1);
// Fourth Panel on Main panel
JPanel PanelFour = new JPanel();
this.add(PanelFour, BorderLayout.EAST);
PanelFour.setPreferredSize(new Dimension(5, getHeight()
- PanelThree.getHeight()));
// Fifth Panel on Main panel
JPanel PanelFive = new JPanel();
this.add(PanelFive, BorderLayout.WEST);
PanelFive.setBackground(Color.lightGray);
PanelFive.setPreferredSize(new Dimension(0, getHeight()
- PanelThree.getHeight()));
// adding ActionListener to the MainPanel, for the button
enter.addActionListener(this);
}
public void actionPerformed(ActionEvent e) {
Object source = e.getSource();
if (source == enter) {
String foodText = food_field.getText();
String gramsText = grams.getText();
double grams2 = Double.parseDouble(grams.getText());
value1.setText("[ " + foodText + " / " + gramsText
+ " gramov ]");
// calculations of food values for x grams...
double kcal1 = 0.0;
double oh = 0.0;
double protein = 0.0;
double fatt = 0.0;
for (int i = 0; i < FOOD_NAME.length; i++) {
if (foodText.equals(FOOD_NAME[i])) {
kcal1 = grams2 / 100 * FOOD_VALUES[i];
oh = grams2 / 100 * FOOD_VALUES_OH[i];
protein = grams2 / 100 * FOOD_VALUES_P[i];
fatt = grams2 / 100 * FOOD_VALUES_M[i];
}
}
value2.setText(String.format(" %.1f ", kcal1));
value3.setText(String.format(" %.1f g", oh));
value4.setText(String.format(" %.1f g", protein));
value5.setText(String.format(" %.1f g", fatt));
}
value2.getDocument().addDocumentListener(new DocumentListener() {
@Override
public void changedUpdate(DocumentEvent e) {
// TODO Auto-generated method stub
warn();
}
@Override
public void insertUpdate(DocumentEvent e) {
// TODO Auto-generated method stub
warn();
}
@Override
public void removeUpdate(DocumentEvent e) {
// TODO Auto-generated method stub
warn();
}
public void warn() {
double total = 0.0;
double kcal1 = Double.parseDouble(value2.getText());
total = kcal1 + total;
total1.setText(String.format(" %.1f Kcal", total));
}
});
}
}
Grafika包装；
导入java.awt.BorderLayout；
导入java.awt.Color；
导入java.awt.Dimension；
导入java.awt.GridLayout；
导入java.awt.FlowLayout；
导入java.awt.event.ActionEvent；
导入java.awt.event.ActionListener；
导入java.awt.event.KeyEvent；
导入java.awt.event.KeyListener；
导入java.util.EventObject；
导入javax.swing.JButton；
导入javax.swing.JLabel；
导入javax.swing.JPanel；
导入javax.swing.JTextField；
导入javax.swing.SwingUtilities；
导入javax.swing.event.DocumentEvent；
导入javax.swing.event.DocumentListener；
公共类食品计算器{
公共静态最终字符串[]FOOD_NAME={“Jogurt，sadni”，“Jogurt 1,6%”，
“斯梅塔纳，斯莱德卡30%，“先生，斯维西”，“先生，莫扎里拉”，
“ovčji先生”、“parmezan先生”、“Sirotka”、“Brokoli”、“Buče”，
“Čebula，bela”，“Čebula，rdeča”，“Česen”，“Endivija”，
“菲žol，sveži”，“戈贝，sveže”，“格拉赫”，“贾切维奇”，“克朗皮尔”，
“Kumare，sveže”，“Kumarice，kisle”，“Motovilec”，“辣椒，rumena”，
“红辣椒，泽勒纳”，“帕拉迪日尼克”，“佩萨，库哈纳”，“彼得•伊尔吉”，
“波尔”、“拉巴巴拉”、“拉迪奇、勒迪奇”、“拉迪奇、泽莱尼”，
“Solata，zelena”，“Špinača”，“zelena”，“Zelje，glavnato belo”，
“泽尔杰，格拉夫纳托尔德奇”，“泽尔杰，北极洲”，“阿纳纳斯”，“阿沃卡多”，
“香蕉”、“博罗夫尼斯”、“布雷斯科夫”、“布鲁斯尼斯”、“šešnje”、“菲奇”，
“Grenivka”、“Grozdje，belo”、“Grozdje，črno”、“Hruška（塞拉）”，
“杰波尔科（塞洛）”、“杰戈德”、“基维”、“科科斯”、“勒什尼基、苏希”，
“利莫纳”、“卢本尼卡”、“曼达里娜”、“曼德尔吉”、“玛琳”、“马莱卡”，
“内克塔琳娜”、“奥利弗、兹雷利”、“奥雷希、苏希”、“波马兰查”，
“里贝兹，奇尼”，“里贝兹，奇尼”，“罗比德”，“罗津”，“斯莱夫”，
“西佩克，苏希”，“维什尼耶”，“戈斯卡，塞拉”，“科科什，塞拉”，
“Konjsko meso”、“Piŧŧanec，cel”、“Piŧŧanec，belo meso”，
“Piŧŧanec，temno meso”，“Prŧut”，“Puran，cel”，“Puran，belo meso”，
“Puran，temno meso”，“Raca，cela”，“Svinjina，nemastna”，
“Teletina，nemastna”，“Vratovina，sušena”，“Hobotnica”，“Lingji”，
“名单”、“洛索斯”、“Postrv、波托契纳”、“萨德利斯”、“金枪鱼”，
“图尼纳诉奥尔朱案”、“阿吉达案”、“科鲁兹尼·科斯米奇案”、“克鲁赫、佩尼、克尔尼案”，
“Ovseni kosmiči”、“Prepečenec，beli”、“Pšenična moka，bela”，
“Pšenični otrobi”，“Pšenica，suho zrnje”，“Riž，neglaziran”，
“里ž，格拉兹兰”，“里ževa moka”，“Rž”，“博罗夫尼切夫索克”，
“布雷斯科夫索克”、“可乐”、“Čaj、因迪斯基”、“格罗兹尼索克”，
“赫鲁斯科夫索克”、“贾博尔切尼索克”、“卡瓦”、“马雷利切尼索克”，
“Pesin sok”、“Pomarančni sok、sveži”、“Čokolada、Jedelna”，
“乔科拉达，姆莱什纳”，“乔科拉达，姆莱什纳，兹勒什尼基”，“梅德”}；
公共静态最终双[]食物_值={99.0,43.0,284.9,95.0，
224.0, 447.0, 411.0, 25.9, 25.0, 15.0, 35.0, 23.0, 136.0, 11.0,
143.0, 35.9, 67.0, 25.0, 87.0, 14.0, 10.0, 20.0, 22.0, 16.0, 14.0,
32.0, 20.0, 28.0, 12.0, 12.0, 24.0, 15.1, 21.9, 12.0, 22.0, 20.0,
12.0, 46.0, 126.0, 79.0, 56.0, 37.0, 45.7, 48.0, 41.0, 28.0, 60.0,
54.0, 29.0, 40.0, 26.0, 40.0, 346.0, 701.0, 26.9, 21.0, 34.0,
565.0, 25.0, 50.7, 50.0, 128.5, 648.0, 35.0, 28.0, 21.0, 29.0,
246.0, 56.6, 169.2, 57.8, 198.0, 186.0, 110.0, 230.0, 116.0, 126.0,
496.0, 143.0, 134.0, 186.0, 341.0, 161.0, 113.0, 450.0, 73.0, 77.0,
83.0, 217.0, 86.0, 98.0, 225.0, 287.0, 333.7, 368.0, 222.0, 372.0,
354.0, 350.0, 206.0, 326.0, 329.0, 349.0, 349.0, 347.5, 45.0, 48.0,
39.0, 57.8, 65.7, 51.9, 49.7, 301.0, 56.6, 36.0, 45.0, 475.0,
517.9, 529.8, 302.7 };
公共静态最终双[]食品值(OH={18.6,3.9,1.0,3.0,0.0，
0.0, 2.0, 5.1, 2.5, 3.4, 8.5, 5.2, 28.0, 1.1, 21.8, 5.8, 10.6, 5.6,
20.8, 1.8, 2.0, 3.0, 5.0, 2.8, 2.8, 7.0, 1.0, 5.0, 2.0, 1.7, 3.2,
2.8, 3.9, 2.0, 3.8, 3.5, 2.0, 11.6, 7.0, 19.2, 14.3, 9.1, 10.8,
11.7, 9.5, 7.0, 15.3, 13.5, 7.6, 10.0, 6.2, 9.0, 3.7, 6.0, 8.2,
5.3, 8.0, 4.3, 5.6, 12.8, 12.4, 2.6, 8.8, 5.8, 6.6, 4.4, 6.4, 64.4,
14.6, 79.2, 14.3, 0.0, 0.2, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 1.1, 0.8, 1.0, 0.9, 0.0, 0.0, 0.0, 0.0, 0.0, 72.9,
85.1, 43.0, 72.8, 77.5, 80.1, 26.8, 72.0, 72.0, 78.0, 78.0, 74.0,
11.1, 11.7, 10.0, 0.0, 16.6, 3.2, 13.8, 28.5, 14.6, 8.0, 10.4,
46.8, 56.9, 51.3, 82.3 };
公共静态最终双[]食品价格=1.0,3.3,22.0,14.0,19.9，
25.6, 40.0, 0.9, 3.0, 0.6, 0.9, 0.9, 6.0, 0.9, 10.1, 2.8, 5.8, 1.2,
2.1, 0.7, 0.5, 2.0, 0.2, 0.9, 0.9, 1.1, 4.0, 2.0, 1.0, 1.2, 1.8,
1.3, 2.2, 1.0, 1.9, 1.7, 1.0, 0.5, 2.0, 1.1, 0.6, 0.6, 0.4, 0.8,
1.3, 0.0, 0.6, 0.5, 0.2, 0.0, 0.6, 1.0, 3.2, 14.0, 1.1, 0.4, 0.9,
16.9, 0.9, 1.0, 0.9, 1.1, 15.8, 0.9, 0.9, 1.1, 1.3, 1.1, 0.7, 4.5,
1.2, 21.8, 21.5, 20.9, 17.6, 21.8, 19.1, 18.9, 20.0, 22.0, 20.9,
20.0, 20.0, 21.3, 20.8, 15.3, 16.0, 15.9, 22.5, 14.7, 17.4, 21.5,
22.8, 11.7, 8.6, 8.0, 8.0, 11.6, 9.8, 14.1, 10.2, 7.0, 7.0, 7.0,
9.3, 0.1, 0.3, 0.0, 14.1, 0.2, 0.3, 0.1, 12.5, 0.3, 1.0, 0.7, 7.9,
7.