你好，我必须完成一个项目，但我无法进一步。该项目涉及jlabels在两侧（左侧和右侧）动态生成图标。
每一侧的图标顺序不同，并且存在一对一的图标关系。
作为一个例子：link
现在你可以在这些图片之间从左到右画线，点击检查按钮后它会告诉你它是真是假：
再一张图片：link
我的问题是如何比较图标以确定哪个组合是正确的，并且在比较图纸之后？
我已经创建了两个列表来了解图纸的组件组合。
这是迄今为止的代码 -
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Shape;
import java.awt.geom.Line2D;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.SwingConstants;
import javax.swing.ImageIcon;
public class CatSameCoins{
public static JLabel label;
public ActionListener btn1Listener;
public ActionListener btn2Listener;
public ActionListener btn3Listener;
public ActionListener btn4Listener;
public ActionListener btn5Listener;
public ActionListener btn6Listener;
public JButton btn1;
public JButton btn2;
public JButton btn3;
public JButton btn4;
public JButton btn5;
public JButton btn6;
public JButton btnCheck;
public ArrayList<String> listto = new ArrayList<String>();
public ArrayList<String> listfrom = new ArrayList<String>();
public static boolean drawing = false;
public static List<Shape> shapes = new ArrayList<Shape> ();
public static Shape currentShape = null;
static Component fromComponent;
private JLabel lblCheck;
public void drawLine(Component from , Component to){
listfrom.add(from.getName()); //first list with component names from where the drawing start
listto.add(to.getName()); //second list with component names where the drawing ends
Point fromPoint = new Point();
Point toPoint = new Point();
fromPoint.x = from.getX()+from.getWidth()/2; //get middle
fromPoint.y = from.getY()+from.getHeight()/2; //get middle
toPoint.x = to.getX()+to.getWidth()/2;
toPoint.y = to.getY()+to.getHeight()/2;
currentShape = new Line2D.Double (fromPoint, toPoint);
shapes.add (currentShape);
label.repaint();
drawing = false;
}
public CatSameCoins(){
JFrame frame = new JFrame ();
frame.getContentPane().setLayout(null);
JButton btnremove = new JButton("remove-drawings");
btnremove.setBounds(139, 39, 216, 23);
btnremove.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
shapes.removeAll(shapes);
listfrom.removeAll(listfrom);
drawing= false;
btn1.addActionListener(btn1Listener);
btn2.addActionListener(btn2Listener);
btn3.addActionListener(btn3Listener);
btn4.addActionListener(btn4Listener);
btn5.addActionListener(btn5Listener);
btn6.addActionListener(btn6Listener);
}
});
frame.getContentPane().add(btnremove);
btn1 = new JButton("1");
btn1.setName("btn1");
btn1.setBounds(21, 88, 45, 97);
btn1Listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
drawing = true;
fromComponent = btn1;
btn1.removeActionListener(this);
}
};
btn1.addActionListener(btn1Listener);
frame.getContentPane().add(btn1);
btn2 = new JButton("2");
btn2.setName("btn2");
btn2Listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
drawing = true;
fromComponent = btn2;
btn2.removeActionListener(this);
}
};
btn2.addActionListener(btn2Listener);
btn2.setBounds(21, 196, 45, 97);
frame.getContentPane().add(btn2);
btn3 = new JButton("3");
btn3.setName("btn3");
btn3Listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
drawing = true;
fromComponent = btn3;
btn3.removeActionListener(this);
}
};
btn3.addActionListener(btn3Listener);
btn3.setBounds(21, 307, 45, 97);
frame.getContentPane().add(btn3);
btn4 = new JButton("4");
btn4.setName("btn4");
btn4Listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(drawing == true){
drawLine(fromComponent,btn4);
drawing = false;
btn4.removeActionListener(this);
}
}
};
btn4.addActionListener(btn4Listener);
btn4.setBounds(407, 88, 45, 97);
frame.getContentPane().add(btn4);
btn5 = new JButton("5");
btn5.setName("btn5");
btn5Listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(drawing == true){
drawLine(fromComponent,btn5);
drawing = false;
btn5.removeActionListener(this);
}
}
};
btn5.addActionListener(btn5Listener);
btn5.setBounds(407, 202, 45, 91);
frame.getContentPane().add(btn5);
btn6 = new JButton("6");
btn6.setName("btn6");
btn6.setBounds(407, 307, 45, 91);
btn6Listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if(drawing == true){
drawLine(fromComponent,btn6);
drawing = false;
btn6.removeActionListener(this);
}
}
};
btn6.addActionListener(btn6Listener);
frame.getContentPane().add(btn6);
btnCheck = new JButton("check");
btnCheck.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
for(int i=0;i< listfrom.size();i++){
System.out.println(listfrom.get(i)+" - "+listto.get(i));
}
lblCheck.setText("False");
//if().... lblCheck.setText("True")
//else lblCheck.setText("False")
/*if(btn6.getIcon().toString().equals(btn1.getIcon().toString())){
System.out.println("yes");
}
else{
System.out.println("neah");
}*/
}
});
btnCheck.setBounds(171, 405, 143, 46);
frame.getContentPane().add(btnCheck);
lblCheck = new JLabel("");
lblCheck.setHorizontalAlignment(SwingConstants.CENTER);
lblCheck.setBounds(84, 405, 80, 46);
frame.getContentPane().add(lblCheck);
label = new JLabel (){
protected void paintComponent ( Graphics g )
{
Graphics2D g2d = ( Graphics2D ) g;
g2d.setPaint ( Color.black);
g2d.setStroke(new BasicStroke(5));
for ( Shape shape : shapes )
{
g2d.draw ( shape );
repaint();
}
}
} ;
label.setSize(500,500);
frame.getContentPane().add (label);
frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
frame.setSize ( 500, 500 );
frame.setLocationRelativeTo ( null );
frame.setVisible ( true );
}
public static void main ( String[] args )
{
new CatSameCoins();
}
}
非常感谢任何帮助;）。
答案 0 :(得分：0)
它完成了， 解决方案：您可以尝试只更改第二个hashmap的图标名称 我知道这不是最好的解决方案，但至少我试过了。我会尽力改进它。
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Shape;
import java.awt.geom.Line2D;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Random;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.SwingConstants;
import javax.swing.ImageIcon;
public class Hashmap {
private JLabel label;
private ActionListener btn1Listener;
private ActionListener btn2Listener;
private ActionListener btn3Listener;
private ActionListener btn4Listener;
private ActionListener btn5Listener;
private ActionListener btn6Listener;
private JButton btn1;
private JButton btn2;
private JButton btn3;
private JButton btn4;
private JButton btn5;
private JButton btn6;
private JButton btnCheck;
private JButton btnNext;
private boolean drawing = false;
private Shape currentShape = null;
private Component fromComponent;
private JLabel lblCheck;
private List<Shape> shapes = new ArrayList<Shape>();
private HashMap<String, String> userLines = new HashMap<String, String>();
private HashMap<String, String> resultLines = new HashMap<String, String>();
private HashMap<String, String> icons = new HashMap<String, String>();
public void drawLine(Component from, Component to) {
userLines.put(from.getName(), to.getName());
Point fromPoint = new Point();
Point toPoint = new Point();
fromPoint.x = from.getX() + from.getWidth() / 2; // get middle
fromPoint.y = from.getY() + from.getHeight() / 2; // get middle
toPoint.x = to.getX() + to.getWidth() / 2;
toPoint.y = to.getY() + to.getHeight() / 2;
currentShape = new Line2D.Double(fromPoint, toPoint);
shapes.add(currentShape);
label.repaint();
drawing = false;
}
@SuppressWarnings("serial")
public Hashmap() {
loadIcons();
JFrame frame = new JFrame();
frame.getContentPane().setLayout(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(500, 500);
frame.setLocationRelativeTo(null);
JButton btnremove = new JButton("remove-drawings");
btnremove.setBounds(139, 39, 216, 23);
btnremove.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
shapes.removeAll(shapes);
drawing = false;
userLines.clear();
btn1.addActionListener(btn1Listener);
btn2.addActionListener(btn2Listener);
btn3.addActionListener(btn3Listener);
btn4.addActionListener(btn4Listener);
btn5.addActionListener(btn5Listener);
btn6.addActionListener(btn6Listener);
}
});
frame.getContentPane().add(btnremove);
btn1 = new JButton("1");
btn1.setName("1");
btn1Listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
drawing = true;
fromComponent = btn1;
}
};
btn1.addActionListener(btn1Listener);
btn1.setBounds(21, 88, 45, 97);
frame.getContentPane().add(btn1);
btn2 = new JButton("2");
btn2.setName("2");
btn2Listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
drawing = true;
fromComponent = btn2;
}
};
btn2.addActionListener(btn2Listener);
btn2.setBounds(21, 196, 45, 97);
frame.getContentPane().add(btn2);
btn3 = new JButton("3");
btn3.setName("3");
btn3Listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
drawing = true;
fromComponent = btn3;
}
};
btn3.addActionListener(btn3Listener);
btn3.setBounds(21, 307, 45, 97);
frame.getContentPane().add(btn3);
btn4 = new JButton("4");
btn4.setName("4");
btn4Listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (drawing == true) {
drawLine(fromComponent, btn4);
drawing = false;
btn4.removeActionListener(this);
if (fromComponent.equals(btn1)) {
btn1.removeActionListener(btn1Listener);
}
if (fromComponent.equals(btn2)) {
btn2.removeActionListener(btn2Listener);
}
if (fromComponent.equals(btn3)) {
btn3.removeActionListener(btn3Listener);
}
}
}
};
btn4.addActionListener(btn4Listener);
btn4.setBounds(407, 88, 45, 97);
frame.getContentPane().add(btn4);
btn5 = new JButton("5");
btn5.setName("5");
btn5Listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (drawing == true) {
drawLine(fromComponent, btn5);
drawing = false;
btn5.removeActionListener(this);
if (fromComponent.equals(btn1)) {
btn1.removeActionListener(btn1Listener);
}
if (fromComponent.equals(btn2)) {
btn2.removeActionListener(btn2Listener);
}
if (fromComponent.equals(btn3)) {
btn3.removeActionListener(btn3Listener);
}
}
}
};
btn5.addActionListener(btn5Listener);
btn5.setBounds(407, 202, 45, 91);
frame.getContentPane().add(btn5);
btn6 = new JButton("6");
btn6.setName("6");
btn6Listener = new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (drawing == true) {
drawLine(fromComponent, btn6);
drawing = false;
btn6.removeActionListener(this);
if (fromComponent.equals(btn1)) {
btn1.removeActionListener(btn1Listener);
}
if (fromComponent.equals(btn2)) {
btn2.removeActionListener(btn2Listener);
}
if (fromComponent.equals(btn3)) {
btn3.removeActionListener(btn3Listener);
}
}
}
};
btn6.addActionListener(btn6Listener);
btn6.setBounds(407, 307, 45, 91);
frame.getContentPane().add(btn6);
btnCheck = new JButton("check");
btnCheck.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (resultLines.equals(userLines) && !userLines.isEmpty()) {
lblCheck.setText("true");
} else {
lblCheck.setText("false");
}
}
});
btnCheck.setBounds(171, 405, 143, 46);
frame.getContentPane().add(btnCheck);
btnNext = new JButton("next");
btnNext.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
userLines.clear();
resultLines.clear();
shapes.removeAll(shapes);
drawing = false;
changeCombination();
btn1.addActionListener(btn1Listener);
btn2.addActionListener(btn2Listener);
btn3.addActionListener(btn3Listener);
btn4.addActionListener(btn4Listener);
btn5.addActionListener(btn5Listener);
btn6.addActionListener(btn6Listener);
}
});
btnNext.setBounds(335, 435, 117, 25);
frame.getContentPane().add(btnNext);
lblCheck = new JLabel("");
lblCheck.setHorizontalAlignment(SwingConstants.CENTER);
lblCheck.setBounds(84, 405, 80, 46);
frame.getContentPane().add(lblCheck);
label = new JLabel() {
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D) g;
g2d.setPaint(Color.black);
g2d.setStroke(new BasicStroke(3));
for (Shape shape : shapes) {
g2d.draw(shape);
repaint();
}
}
};
label.setSize(frame.getWidth(), frame.getHeight());
frame.getContentPane().add(label);
frame.setVisible(true);
}
private void loadIcons() {
icons.clear();
icons.put("money/coin2/1_Cent.png", "money/coin2/1_Cent.png");
icons.put("money/coin2/5_Cent.png", "money/coin2/5_Cent.png");
icons.put("money/coin2/10_Cent.png", "money/coin2/10_Cent.png");
icons.put("money/coin2/20_Cent.png", "money/coin2/20_Cent.png");
icons.put("money/coin2/50_Cent.png", "money/coin2/50_Cent.png");
icons.put("money/coin2/2_Euro.png", "money/coin2/2_Euro.png");
icons.put("money/coin2/1_Euro.png", "money/coin2/1_Euro.png");
}
public void changeCombination() {
Random randLeftSide = new Random();
Random randRightSide = new Random();
while (resultLines.size() < 3) {
int left = randLeftSide.nextInt(3 - 1 + 1) + 1;
int right = randRightSide.nextInt(6 - 4 + 1) + 4;
// System.out.println("leftside: "+left+"rightside: "+y);
while (resultLines.containsKey(String.valueOf(left))) {
if (resultLines.size() > 3) {
break;
} else {
left = randLeftSide.nextInt(3 - 1 + 1) + 1;
// System.out.println("leftside : "+left);
}
}
while (resultLines.containsValue(String.valueOf(right))) {
if (resultLines.size() > 3) {
break;
} else {
right = randRightSide.nextInt(6 - 4 + 1) + 4;
// System.out.println("rightside: "+right);
}
}
resultLines.put(String.valueOf(left), String.valueOf(right));
}
// System.out.println("TOTAL MAP: "+resultLines.toString());
changeImages();
}
private void changeImages() {
List<Integer> randomIcon = new ArrayList<Integer>(); //creating array list for the icon random numbers
List<Integer> randomLines = new ArrayList<Integer>(); //creating array list for the lines random numbers
for (int i = 0; i < resultLines.size(); i++) {
int randomIndexIcon = new Random().nextInt(icons.size()); //generate random number for the icons from the hashmap
while (randomIcon.contains(randomIndexIcon)) { //while the list contains the random number generate a new one to prevent printing same pictures
randomIndexIcon = new Random().nextInt(icons.size());
}
randomIcon.add(randomIndexIcon); //add to the array list of the icon random numbers the generated random number
int randomIndexResult = new Random().nextInt(resultLines.size()); //generate random number for the lines
while (randomLines.contains(randomIndexResult)) { //while for second list to prevent generating same numbers
randomIndexResult = new Random().nextInt(resultLines.size());
}
randomLines.add(randomIndexResult); //add to the array list of the lines random numbers the generated random number
Object iconValue = icons.values().toArray()[randomIndexIcon]; //this is to get the icon string
Object valueLeft = resultLines.keySet().toArray()[randomIndexResult]; //this is to get the random key value from the resultLines map (left side)
if (valueLeft.equals("1")) { //check conditions
btn1.setIcon(new ImageIcon(getClass().getResource(
iconValue.toString())));
}
if (valueLeft.equals("2")) {
btn2.setIcon(new ImageIcon(getClass().getResource(
iconValue.toString())));
}
if (valueLeft.equals("3")) {
btn3.setIcon(new ImageIcon(getClass().getResource(
iconValue.toString())));
}
Object valueRight = resultLines.values().toArray()[randomIndexResult]; //get the values from the hashmap (right side)
if (valueRight.equals("4")) { //check conditions
btn4.setIcon(new ImageIcon(getClass().getResource(
iconValue.toString())));
}
if (valueRight.equals("5")) {
btn5.setIcon(new ImageIcon(getClass().getResource(
iconValue.toString())));
}
if (valueRight.equals("6")) {
btn6.setIcon(new ImageIcon(getClass().getResource(
iconValue.toString())));
}
}
}
public static void main(String[] args) {
new Hashmap();
}
}