这段代码为什么无法运行protected void paintComponent(Graphics g) { try { File file = new File("cat.png"); imagecat = read(file); } catch (IOException e) { e.printStackTrace(); } super.paintComponent(g); Graphics2D g2 = (Graphics2D) g; g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); if (imagecat != null) { // 判断是否有导入的图片 g2.drawImage(imagecat, 0, 0, getWidth(), getHeight(), null); } if (isSelected()) { // Highlights the model if selected. g.setColor(Color.RED); g.drawOval(0, 0, getWidth(), getHeight()); } }

Java圆形按钮实例代码，含注释.7z

protected void paintComponent(Graphics g) { super.paintComponent(g); // 先调用父类的paintComponent以处理背景等 int diameter = Math.min(this.getWidth(), this.getHeight()); int radius = diameter / 2...

Java_Graphics_Developement.rar_Java Graphics

Graphics类是这个包的核心，它提供了绘制线条、填充形状、设置颜色和字体等方法。开发者可以通过重写组件的paint或paintComponent方法来利用Graphics对象进行绘图。饼图是一种常见的数据可视化方式，用于...

import javax.swing.; import java.io.; import java.awt.*; public class StudentPicture extends JPanel{ File imageFile; Toolkit tool; public StudentPicture(){ tool=getToolkit(); } public void setImage(File imageFile){ this.imageFile=imageFile; repaint(); } public void paintComponent(Graphics g){ super.paintComponent(g); int w=getBounds().width; int h=getBounds().height; if(imageFile!=null){ Image image=tool.getImage(imageFile.getAbsolutePath()); g.drawImage(image,0,0,w,h,this); } else g.drawString("没有选择照片图像",20,30); } } 编写该代码的junit类代码

以下是可能的JUnit测试类代码： import static org.junit.Assert.*; import org.junit.Test; import java.io.*; public class StudentPictureTest { @Test public void testSetImage() { StudentPicture ...

怎么让该棋子被点击后，获取其他类里面声明的movablecellprotected void paintComponent(Graphics g) { try { if (owner.getColor() == Color.BLUE) { File file = new File("src/view/bluedog.png"); imagedog = ImageIO.read(file); } else if (owner.getColor() == Color.RED) { File file = new File("src/view/reddog.png"); imagedog = ImageIO.read(file); } } catch(IOException e){ e.printStackTrace(); } super.paintComponent(g); Graphics2D g2 = (Graphics2D) g; g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); if (imagedog != null) { // 判断是否有导入的图片 g2.drawImage(imagedog, 0, 0, getWidth(), getHeight(), null); } if (isSelected()) { // Highlights the model if selected. draw(g); } }

可以在该棋子的监听器类中，调用该棋子的paintComponent方法，并传入Graphics对象，例如： public class ChessPieceListener implements MouseListener { private ChessPiece chessPiece; // 其他代码 @...

protected void paintComponent(Graphics g) { super.paintComponent(g); if (test.getMapNodes() != null) { System.out.println("enter the drawGreenNodes"); TwoTuple[] nodes = test.getMapNodes(); g.setColor(Color.GREEN); for (int i = 0; i < nodes.length; i++) { if (nodes[i] != null) { int x = nodes[i].first; int y = nodes[i].second; g.fillRect(y * CELL_SIZE + CELL_SIZE + CELL_SIZE / 4, x * CELL_SIZE + CELL_SIZE + CELL_SIZE / 4, CELL_SIZE / 2, CELL_SIZE / 2); } } }就是点击xxx然后绿色出现，演示一下

protected void paintComponent(Graphics g) { super.paintComponent(g); if (mouseClicked) { g.setColor(Color.GREEN); g.fillRect(mouseX - 5, mouseY - 5, 10, 10); } } public void mouseClicked...

liquidPanel = new JPanel() { @Override protected void paintComponent(Graphics g) {}是什么意思，怎么用

这段代码是创建一个 JPanel 对象，并重写了其 paintComponent 方法，该方法用于绘制 ... protected void paintComponent(Graphics g) {} }); 这样就可以创建一个不需要绘制任何图形的 JPanel 并添加到 JFrame 中。

如何看这package xjdz; import javax.swing.; import java.awt.; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; public class GameWin extends JFrame { private static final int WIDTH = 999; private static final int HEIGHT = 666; private static final String TITLE = "oqcw星际大战仿飞机大战小游戏"; private static final String BG_IMAGE_PATH = "src/bg.jpg"; public GameWin() { initWindow(); } private void initWindow() { // 设置窗口大小、位置、标题、背景等属性 this.setSize(WIDTH, HEIGHT); this.setLocationRelativeTo(null); this.setTitle(TITLE); this.setResizable(false); this.setContentPane(createBackgroundPanel()); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent e) { super.windowClosing(e); dispose(); } }); } private JPanel createBackgroundPanel() { JPanel bgPanel = new JPanel() { protected void paintComponent(Graphics g) { super.paintComponent(g); ImageIcon icon = new ImageIcon(BG_IMAGE_PATH); Image img = icon.getImage(); g.drawImage(img, 0, 0, getWidth(), getHeight(), icon.getImageObserver()); } }; bgPanel.setLayout(null); bgPanel.setPreferredSize(new Dimension(WIDTH, HEIGHT)); return bgPanel; } public void start() { this.setVisible(true); } public static void main(String[] args) { GameWin gameWin = new GameWin(); gameWin.start(); } }段代码

这段代码定义了一个名为 "GameWin" 的类，继承了 JFrame 类，以创建一个窗口程序。其中包含了窗口的大小、位置、标题、背景等属性的初始化及设置。通过调用 initWindow() 方法来初始化窗口，通过 ...

怎么修改这段代码，使其能用GUI导入图片代替文字“猫”protected void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2 = (Graphics2D) g; g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); Font font = new Font("楷体", Font.PLAIN, getWidth() / 2); g2.setFont(font); g2.setColor(owner.getColor()); g2.drawString("猫", getWidth() / 4, getHeight() * 5 / 8); // FIXME: Use library to find the correct offset. if (isSelected()) { // Highlights the model if selected. g.setColor(Color.RED); g.drawOval(0, 0, getWidth() , getHeight()); } }

protected void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2 = (Graphics2D) g; g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); if ...

@Override //重写JPanel类中的paintComponent()方法 //方法在需要绘制组件的时候被调用。它的参数g是绘制组件的图形上下文 protected void paintComponent(Graphics g) { // 获取当前时间 //这行代码用于获取当前时间，并创建一个Java Calendar对象 Calendar calendar = Calendar.getInstance(); //将currentTime对象设置为Calendar对象的时间 calendar.setTime(currentTime); //三行代码从Calendar对象中获取小时、分钟和秒数 int hour = calendar.get(Calendar.HOUR_OF_DAY); int minute = calendar.get(Calendar.MINUTE); int second = calendar.get(Calendar.SECOND); // 绘制表盘背景 BufferedImage image = null; try { image = ImageIO.read(new File("images/6.jpg")); } catch (IOException e) { e.printStackTrace(); } //observer:表示您不需要接收有关图像加载状态的通知，而只需要简单地绘制图像 g.drawImage(image, centerX - RADIUS, centerY - RADIUS, 2 * RADIUS, 2 * RADIUS ,null); //三行代码分别调用drawHourHand()、drawMinuteHand()和 // drawSecondHand()方法，在面板上绘制时针、分针和秒针 drawHour(g, hour, minute); drawMinute(g, minute, second); drawSecond(g, second); }方法中的Graphics对象是谁传过去的

在Swing中，JPanel类是用于创建可绘制组件的容器类。当JPanel需要进行绘制时，会调用其内部的paintComponent()方法进行绘制。...因此，在这段代码中，Graphics对象g是由JPanel类传递给paintComponent()方法的。

import java.util.; public class HelloWorld { public static void main(String[] args) { System.out.println("Hello world!"); } }import java.awt.Color; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Point; import java.util.ArrayList; import java.util.List; import javax.swing.JFrame; import javax.swing.JPanel; public class HeartAnimation extends JPanel implements Runnable { private List heartPoints; private int size; private Color color; private int x; private int y; public HeartAnimation(int size, Color color, int x, int y) { this.size = size; this.color = color; this.x = x; this.y = y; this.setPreferredSize(new Dimension(size, size)); this.heartPoints = new ArrayList<>(); this.createHeart(); } private void createHeart() { for (double t = 0; t <= Math.PI 2; t += 0.01) { int x = (int) (16 * Math.pow(Math.sin(t), 3)); int y = (int) (-13 * Math.cos(t) + 5 * Math.cos(2 * t) + 2 * Math.cos(3 * t) + Math.cos(4 * t)); Point point = new Point(x * 10, y * 10); this.heartPoints.add(point); } } @Override public void paintComponent(Graphics g) { super.paintComponent(g); g.setColor(this.color); for (Point point : this.heartPoints) { int x = point.x + this.x; int y = point.y + this.y; g.drawLine(x, y, x, y); } } @Override public void run() { while (true) { try { Thread.sleep(10); this.x += 1; this.y += 1; this.repaint(); } catch (InterruptedException e) { e.printStackTrace(); } } } public static void main(String[] args) { JFrame frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); HeartAnimation heartAnimation = new HeartAnimation(400, Color.RED, 100, 100); frame.add(heartAnimation); frame.pack(); frame.setVisible(true); Thread thread = new Thread(heartAnimation); thread.start(); } }帮我检查一下这个代码为什么无法运行

这份代码存在两个类的定义，需要将第二个类 HeartAnimation 的代码复制到第一个类 HelloWorld 的后面并将其删除。此外，在 main 方法中启动线程时，应该使用 SwingUtilities.invokeLater() 方法以确保在事件...

public void paintComponent(Graphics g) { super.paintComponent(g); if (image != null) { Graphics2D g2d = (Graphics2D) g; g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); int x = (getWidth() - image.getWidth(null)) / 2; int y = (getHeight() - image.getHeight(null)) / 2; AffineTransform transform = new AffineTransform(); transform.translate(x, y); if (drawingMode == DrawingMode.LINE) { g2d.setColor(Color.BLUE); g2d.draw(new Line2D.Double(0, getHeight() / 2, getWidth(), getHeight() / 2)); } else if (drawingMode == DrawingMode.RECTANGLE) { g2d.setColor(Color.RED); g2d.draw(new Rectangle2D.Double(0, 0, getWidth() - 1, getHeight() - 1)); } else if (drawingMode == DrawingMode.ELLIPSE) { g2d.setColor(Color.GREEN); g2d.draw(new Ellipse2D.Double(0, 0, getWidth() - 1, getHeight() - 1)); } else if (drawingMode == DrawingMode.POLYGON) { if (polygonPath != null) { g2d.setColor(Color.ORANGE); g2d.draw(polygonPath); } } g2d.drawImage(image, transform, null); } } }

这段代码是 ImagePanel 类的 paintComponent 函数的实现。它继承了 JPanel 的 paintComponent 函数，用于在面板上绘制图形。在绘制之前，先调用了父类的 paintComponent 函数进行清空面板操作。然后根据当前绘制模式...

import javax.swing.; import java.awt.; import java.awt.event.*; public class DrawingBoard extends JPanel implements MouseMotionListener, MouseListener { private int lastX, lastY; public DrawingBoard() { setPreferredSize(new Dimension(400, 400)); setBackground(Color.WHITE); addMouseMotionListener(this); addMouseListener(this); } public void paintComponent(Graphics g) { super.paintComponent(g); Font font = new Font("Arial", Font.BOLD, 20); g.setFont(font); g.setColor(Color.BLUE); g.drawString("Hello World!", 50, 50); } public void mouseDragged(MouseEvent e) { Graphics g = getGraphics(); g.drawLine(lastX, lastY, e.getX(), e.getY()); lastX = e.getX(); lastY = e.getY(); } public void mousePressed(MouseEvent e) { lastX = e.getX(); lastY = e.getY(); } public void mouseMoved(MouseEvent e) {} public void mouseClicked(MouseEvent e) {} public void mouseEntered(MouseEvent e) {} public void mouseExited(MouseEvent e) {} public void mouseReleased(MouseEvent e) {} public static void main(String[] args) { JFrame frame = new JFrame("Drawing Board"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.getContentPane().add(new DrawingBoard()); frame.pack(); frame.setVisible(true); } }加注释

下面是对这段 Java 代码的注释： java import javax.swing.*; import java.awt.*; import java.awt.event.*; // DrawingBoard 类继承了 JPanel 类并实现了 MouseMotionListener 和 MouseListener 接口 public ...

怎么在Cellcomponent中实现格子随鼠标移动而高亮，且不与selected相冲突public class AnimalComponent extends ChessComponent { private PlayerColor owner; private boolean selected; /* private ChessboardPoint position; public void setPosition(ChessboardPoint position) { this.position = position; } public ChessboardPoint getPosition(){ return position; } / private static int bluesEaten = 0;//记录被吃掉的蓝色动物数量 public static void setBluesEaten(int bluesEaten){AnimalComponent.bluesEaten = bluesEaten; System.out.println("蓝棋被吃数量" + AnimalComponent.bluesEaten); } public static int getBluesEaten(){return bluesEaten;} private static int redsEaten = 0;//记录被吃掉的红色动物数量 public static void setRedsEaten(int redsEaten){AnimalComponent.redsEaten = redsEaten; System.out.println("红棋被吃数量" + AnimalComponent.redsEaten); } public static int getRedsEaten(){return redsEaten;} public AnimalComponent(PlayerColor owner, int size) { super(owner , size); this.owner = owner; this.selected = false; setSize(size/2, size/2); setLocation(0,0); setVisible(true); } public boolean isSelected() { return selected; } public void setSelected(boolean selected) { this.selected = selected; } @Override protected void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2 = (Graphics2D) g; g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); Font font = new Font("楷体", Font.PLAIN, getWidth() / 2); g2.setFont(font); g2.setColor(owner.getColor()); g2.drawString(" ", getWidth() / 4, getHeight() 5 / 8); // FIXME: Use library to find the correct offset. if (isSelected()) { // Highlights the model if selected. g.setColor(Color.RED); g.drawOval(0, 0, getWidth() , getHeight()); } } }public class CellComponent extends JPanel { private Color background; public CellComponent(Color background, Point location, int size) { setLayout(new GridLayout(1,1)); setLocation(location); setSize(size, size); this.background = background; } @Override protected void paintComponent(Graphics g) { super.paintComponents(g); g.setColor(background); g.fillRect(1, 1, this.getWidth()-1, this.getHeight()-1); } }

protected void paintComponent(Graphics g) { super.paintComponents(g); g.setColor(background); g.fillRect(1, 1, this.getWidth()-1, this.getHeight()-1); if (isHovered) { g.setColor(hoverColor); g...

package work; import java.applet.Applet; import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.geom.Line2D; import java.awt.geom.Point2D; public class CyrusBeckAlgorithmApplet extends Applet { private static final long serialVersionUID = 1L; private Point2D.Double[] clipWindow; private Point2D.Double[][] lines; private double[][] vectors; private double[] p1, p2, D; @Override public void init() { clipWindow = new Point2D.Double[3]; clipWindow[0] = new Point2D.Double(200, 275); clipWindow[1] = new Point2D.Double(250.0 / 3, 100); clipWindow[2] = new Point2D.Double(950.0 / 3, 100); lines = new Point2D.Double[2][2]; lines[0][0] = new Point2D.Double(0, 120); lines[0][1] = new Point2D.Double(400, 120); lines[1][0] = new Point2D.Double(0, 180); lines[1][1] = new Point2D.Double(400, 180); vectors = new double[2][2]; D = new double[2]; } @Override public void paint(Graphics g) { super.paint(g); Graphics2D g2d = (Graphics2D) g; // draw clip window g2d.setColor(Color.BLACK); g2d.draw(new Line2D.Double(clipWindow[0], clipWindow[1])); g2d.draw(new Line2D.Double(clipWindow[1], clipWindow[2])); g2d.draw(new Line2D.Double(clipWindow[2], clipWindow[0])); // draw lines for (int i = 0; i < lines.length; i++) { Point2D.Double p1 = lines[i][0]; Point2D.Double p2 = lines[i][1]; cyrusBeckClip(g2d, p1, p2); } } private void cyrusBeckClip(Graphics2D g2d, Point2D.Double p1, Point2D.Double p2) { double tE = 0, tL = 1; double dx = p2.x - p1.x; double dy = p2.y - p1.y; for (int i = 0; i < clipWindow.length; i++) { Point2D.Double P1 = clipWindow[i]; Point2D.Double P2 = clipWindow[(i + 1) % clipWindow.length]; double nx = -(P2.y - P1.y); double ny = P2.x - P1.x; double D = -nx * P1.x - ny * P1.y; double numerator = nx * p1.x + ny * p1.y + D; double denominator = -(nx * dx + ny * dy); if (denominator == 0) { if (numerator < 0) { return; } } else { double t = numerator / denominator; if (denominator < 0) { tE = Math.max(tE, t); } else { tL = Math.min(tL, t); } } } if (tE <= tL) { double x1 = p1.x + tE * dx; double y1 = p1.y + tE * dy; double x2 = p1.x + tL * dx; double y2 = p1.y + tL * dy; g2d.setColor(Color.BLUE); g2d.draw(new Line2D.Double(p1, new Point2D.Double(x1, y1))); g2d.setColor(Color.RED); g2d.draw(new Line2D.Double(new Point2D.Double(x1, y1), new Point2D.Double(x2, y2))); g2d.setColor(Color.BLUE); g2d.draw(new Line2D.Double(new Point2D.Double(x2, y2), p2)); } } } 将此代码改为 Java 应用程序运行

将代码中的 extends Applet 和 public void init() 方法删除，并将 public void paint(Graphics g) 方法改为 public static void main(String[] args) 方法，代码如下： java package work; import ...

public void paintComponent(Graphics g){ super.paintComponent(g); int t=randomcolor.nextInt(5); int count=randomcolor.nextInt(5); Color[] color=new Color[]{Color.pink,Color.green,Color.black,Color.yellow,Color.blue}; //绘制围墙 for(j=0;j<22;j++){ for(i=0;i<12;i++){ if(map[i][j]==2){//判断是否为墙并绘制 g.setColor(Color.black); g.fill3DRect(iCELL,jCELL,CELL,CELL,true); } if(map[i][j]==0){//判断是否为墙并绘制 g.setColor(Color.red); g.drawRoundRect(iCELL,jCELL,CELL,CELL,6,6);} } }这段语句的方法行为

这段代码定义了一个名为paintComponent的方法，该方法继承自JComponent，并重写了该方法。该方法的作用是绘制游戏界面。在方法中，首先调用了父类的paintComponent方法，用于清除之前绘制的内容。然后通过...

请分析以下java代码采用了什么布局import java.awt.*; import java.awt.geom.GeneralPath; import java.awt.geom.Line2D; import javax.swing.JFrame; import javax.swing.JPanel; class NikeLogo extends JPanel { @Override protected void paintComponent(Graphics g) { super.paintComponent(g); Graphics2D g2d = (Graphics2D) g; g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); g2d.setStroke(new BasicStroke(7)); // 设置线宽为2像素 g2d.draw(new Line2D.Double(70, 220, 70, 270)); g2d.draw(new Line2D.Double(70, 220, 100, 270)); g2d.draw(new Line2D.Double(100, 270, 100, 220)); g2d.draw(new Line2D.Double(130, 270, 130, 220)); g2d.draw(new Line2D.Double(160, 270, 160, 220)); g2d.draw(new Line2D.Double(160, 245, 190, 220)); g2d.draw(new Line2D.Double(160, 245, 190, 270)); g2d.draw(new Line2D.Double(220, 270, 220, 220)); g2d.draw(new Line2D.Double(220, 270, 250, 270)); g2d.draw(new Line2D.Double(220, 245, 250, 245)); g2d.draw(new Line2D.Double(220, 220, 250, 220)); g2d.setColor(Color.BLACK); drawNikeLogo(g2d); } private void drawNikeLogo(Graphics2D g2d) { GeneralPath path1 = new GeneralPath(); GeneralPath path2 = new GeneralPath(); path1.moveTo(300, 100); path1.quadTo(50, 200, 100, 100); path2.moveTo(300, 100); path2.quadTo(0, 300, 100, 100); GeneralPath pathn1 = new GeneralPath(); g2d.setStroke(new BasicStroke(10)); g2d.draw(path1); g2d.draw(path2); } public static void main(String[] args) { JFrame frame = new JFrame("Nike Logo"); NikeLogo logoPanel = new NikeLogo(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(500, 400); frame.add(logoPanel); frame.setVisible(true); } }

这段 Java 代码采用了 AWT 布局（Abstract Window Toolkit），并使用了 JFrame 和 JPanel 组件。JFrame 是顶层容器，JPanel 是其中的一个容器组件，用于显示绘制的图形。在 JPanel 中，通过重写 paintComponent() ...

public void paintComponent(Graphics g) { super.paintComponent(g); // 绘制图片 g.drawImage(image, x, y, null); }中Graphics g是什么

Graphics g 是 Java AWT(Graphics Abstract Window Toolkit) 绘图的一个抽象类，它提供了一组绘制图形的方法，用于在 Java GUI 程序中绘制图形。在这里，我们使用 Graphics 对象的 drawImage() 方法绘制图像。当我们...

public class DogChessComponent extends AnimalComponent { private PlayerColor owner; private boolean selected; protected void paintComponent(Graphics g) { if (isSelected()) { // Highlights the model if selected. draw(g); } } } public class GameController implements GameListener { private ChessGameFrame frame;//用于实现游戏结束展示Winner功能 private ChessboardPoint[] movableCell = new ChessboardPoint[7]; }怎么在paintcomponent方法中调用movablecell

protected void paintComponent(Graphics g) { if (isSelected()) { draw(g); } // 画出可移动的位置 for (ChessboardPoint point : movableCell) { // 根据棋盘位置画出相应的图形 // ... } } } 在...

设置Java GUI窗口的背景图片可以通过以下步骤实现： 1. 创建一个JFrame对象，即窗口。 2. 创建一个ImageIcon对象，即背景图片。 3. 创建一个JPanel对象，即面板。 4. 重写面板的paintComponent()方法，在其中使用g.drawImage()方法绘制背景图片。 5. 将面板添加到窗口中。具体实现方法可参考如下代码： import javax.swing.; import java.awt.; public class BackgroundImageFrame extends JFrame { public BackgroundImageFrame() { super("Java GUI窗口"); ImageIcon icon = new ImageIcon("background.jpg"); JPanel panel = new JPanel() { protected void paintComponent(Graphics g){ g.drawImage(icon.getImage(), 0, 0, getWidth(), getHeight(), icon.getImageObserver()); } }; this.add(panel); this.setSize(500, 400); this.setLocationRelativeTo(null); this.setDefaultCloseOperation(EXIT_ON_CLOSE); } public static void main(String[] args) { new BackgroundImageFrame().setVisible(true); } }

protected void paintComponent(Graphics g){ super.paintComponent(g); g.drawImage(icon.getImage(), 0, 0, getWidth(), getHeight(), icon.getImageObserver()); } }; this.add(panel); this.setSize(500...

相关推荐

Java圆形按钮实例代码，含注释.7z

Java_Graphics_Developement.rar_Java Graphics

liquidPanel = new JPanel() { @Override protected void paintComponent(Graphics g) {}是什么意思，怎么用

public void paintComponent(Graphics g) { super.paintComponent(g); // 绘制图片 g.drawImage(image, x, y, null); }中Graphics g是什么

最新推荐

地级市GDP及产业结构数据-最新.zip

2006-2023年上市公司资产误定价Misp数据集（4.9万样本，含原始数据、代码及结果，最新）.zip

Altera和Xilinx FPGA的从串配置模式比较

高清艺术文字图标资源，PNG和ICO格式免费下载

管理建模和仿真的文件

DMA技术：绕过CPU实现高效数据传输

SGM8701电压比较器如何在低功耗电池供电系统中实现高效率运作？

mui框架HTML5应用界面组件使用示例教程

"互动学习：行动中的多样性与论文攻读经历"

【数据传输高速公路】：总线系统的深度解析