策略模式,單例模式,裝飾模式,簡(jiǎn)單工廠模式這幾種模式個(gè)人感覺(jué)在實(shí)際開(kāi)發(fā)過(guò)程中用的比較多,開(kāi)發(fā)的多了對(duì)模式的概念反而會(huì)漸漸模糊
網(wǎng)站設(shè)計(jì)制作、網(wǎng)站制作介紹好的網(wǎng)站是理念、設(shè)計(jì)和技術(shù)的結(jié)合。成都創(chuàng)新互聯(lián)擁有的網(wǎng)站設(shè)計(jì)理念、多方位的設(shè)計(jì)風(fēng)格、經(jīng)驗(yàn)豐富的設(shè)計(jì)團(tuán)隊(duì)。提供PC端+手機(jī)端網(wǎng)站建設(shè),用營(yíng)銷(xiāo)思維進(jìn)行網(wǎng)站設(shè)計(jì)、采用先進(jìn)技術(shù)開(kāi)源代碼、注重用戶(hù)體驗(yàn)與SEO基礎(chǔ),將技術(shù)與創(chuàng)意整合到網(wǎng)站之中,以契合客戶(hù)的方式做到創(chuàng)意性的視覺(jué)化效果。
在這里面找到快捷鍵方式,Window-Preferences-General-Key。輸入format找到綁定輸入Ctrl+Shift+F。應(yīng)用一下,應(yīng)該就可以了,有的版本快捷方式不同而已。
對(duì)于代碼結(jié)構(gòu)上,看起來(lái)漂亮起作用的模式,常用的策略模式,工廠模式,裝飾模式和觀察者模式吧。但也看情景,生搬硬套會(huì)顯得不夠簡(jiǎn)潔的
唉,給你看看小Case的,自己運(yùn)行一下
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
public class TranslucentButton extends JButton {
BufferedImage buttonImage = null;
/** Creates a new instance of TranslucentButton */
public TranslucentButton(String label) {
super(label);
setOpaque(false);
}
public void paint(Graphics g) {
// Create an image for the button graphics if necessary
if (buttonImage == null || buttonImage.getWidth() != getWidth() ||
buttonImage.getHeight() != getHeight()) {
buttonImage = getGraphicsConfiguration().
createCompatibleImage(getWidth(), getHeight());//返回一個(gè)數(shù)據(jù)布局和顏色模型與此 GraphicsConfiguration 兼容的 BufferedImage
}
Graphics gButton = buttonImage.getGraphics();
gButton.setClip(g.getClip());//設(shè)置獲取的當(dāng)前的剪貼區(qū)域
// Have the superclass render the button for us
super.paint(gButton);
// Make the graphics object sent to this paint() method translucent
Graphics2D g2d = (Graphics2D)g;
AlphaComposite newComposite =
AlphaComposite.getInstance(AlphaComposite.SRC_OVER, .5f);
g2d.setComposite(newComposite);
// Copy the button's image to the destination graphics, translucently
g2d.drawImage(buttonImage, 0, 0, null);
}
private static void createAndShowGUI() {
JFrame f = new JFrame();
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(300, 300);
JPanel checkerboard = new Checkerboard();
checkerboard.add(new TranslucentButton("Translucent Button"));
f.add(checkerboard);
f.setVisible(true);
}
public static void main(String args[]) {
Runnable doCreateAndShowGUI = new Runnable() {
public void run() {
createAndShowGUI();
}
};
SwingUtilities.invokeLater(doCreateAndShowGUI);//swing線(xiàn)程
}
private static class Checkerboard extends JPanel {
static final int CHECKER_SIZE = 60;
public void paintComponent(Graphics g) {
g.setColor(Color.white);
g.fillRect(0, 0, getWidth(), getHeight());
g.setColor(Color.BLACK);
for (int stripeX = 0; stripeX getWidth(); stripeX += CHECKER_SIZE) {
for (int y = 0, row = 0; y getHeight(); y += CHECKER_SIZE/2, ++row) {
int x = (row % 2 == 0) ? stripeX : (stripeX + CHECKER_SIZE/2);
g.fillRect(x, y, CHECKER_SIZE/2, CHECKER_SIZE/2);
}
}
}
}
}
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