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  1. import java.awt.*;
  2. import java.awt.event.*;
  3. import javax.swing.*;
  4. import javax.swing.border.*;
  5. import static java.lang.Math.*;
  6.  
  7. class Field {
  8.     Color[][] mass;
  9.     public Field() {
  10.         this.mass = new Color[12][12];
  11.     }
  12.     public void putColor(int i, int j, Color c) {
  13.         this.mass[i][j] = c;
  14.     }
  15.     public Color readColor(int i, int j) {
  16.         return this.mass[i][j];
  17.     }
  18.     public void clear() {
  19.         for(int i=0; i<mass.length; i++) {
  20.             for(int j=0; j<mass[i].length; j++) {
  21.                 this.mass[i][j] = Color.WHITE;
  22.             }
  23.         }
  24.     }
  25.     public void changeMassColor(int i, int j) {
  26.         int r = (int)(random() * 255);
  27.         int g = (int)(random() * 255);
  28.         int b = (int)(random() * 255);
  29.         putColor(i, j, new Color(r, g, b));
  30.     }
  31.     public void changeAllColor() {
  32.         for(int i=0; i<mass.length; i++) {
  33.             for(int j=0; j<mass[i].length; j++) {
  34.                 changeMassColor(i, j);
  35.             }
  36.         }
  37.     }
  38.     public Color getColor(int i, int j) {
  39.         return mass[i][j];
  40.     }
  41. }
  42.  
  43. class MyFrame extends JFrame implements ActionListener, MouseListener {
  44.     JLabel[][] labelss;
  45.     Field field;
  46.     JButton btnChange;
  47.     public static final int WIDTH = 20;
  48.     public static final int HEIGHT = 20;
  49.     public MyFrame() {
  50.         this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  51.         JPanel p = new JPanel(new BorderLayout());
  52.         JPanel center = new JPanel(new GridLayout(12, 12));
  53.         this.labelss = new JLabel[12][12];
  54.         LineBorder border = new LineBorder(Color.BLACK, 1, false);
  55.         for(int i=0; i<labelss.length; i++) {
  56.             for(int j=0; j<labelss[i].length; j++) {
  57.                 this.labelss[i][j] = new JLabel();
  58.                 this.labelss[i][j].setPreferredSize(new Dimension(WIDTH, HEIGHT));
  59.                 this.labelss[i][j].setBorder(border);
  60.                 this.labelss[i][j].setOpaque(true);
  61.                 this.labelss[i][j].addMouseListener(this);
  62.                 center.add(labelss[i][j]);
  63.             }
  64.         }
  65.         this.btnChange = new JButton("Random");
  66.         this.btnChange.addActionListener(this);
  67.         p.add(center, BorderLayout.CENTER);
  68.         p.add(btnChange,  BorderLayout.SOUTH);
  69.         this.add(p);
  70.         this.field = new Field();
  71.         this.pack();
  72.     }
  73.  
  74.     @Override public void actionPerformed(ActionEvent e) {
  75.         field.changeAllColor();
  76.         for(int i=0; i<labelss.length; i++) {
  77.             for(int j=0; j<labelss[i].length; j++) {
  78.                 labelss[i][j].setBackground(field.getColor(i, j));
  79.             }
  80.         }
  81.     }
  82.  
  83.     @Override public void mouseClicked(MouseEvent e) {
  84.         int x = e.getX();
  85.         int y = e.getY();
  86.         JLabel source = (JLabel)e.getSource();
  87.         field.changeMassColor(x/WIDTH, y/HEIGHT);
  88.         source.setBackground(field.getColor(x/WIDTH, y/HEIGHT));
  89.     }
  90.     @Override public void mouseEntered(MouseEvent e) {}
  91.     @Override public void mouseExited(MouseEvent e) {}
  92.     @Override public void mousePressed(MouseEvent e) {}
  93.     @Override public void mouseReleased(MouseEvent e) {}
  94. }
  95.  
  96. public class Main {
  97.     public static void main(String[] args) {
  98.         new MyFrame().setVisible(true);
  99.     }
  100. }
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https://ideone.com/kanaY
language:
Java (HotSpot 12)
created:
12 years ago
visibility:
secret

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