java 鼠標(biāo)放在按鈕上,按鈕上面顯示動(dòng)態(tài)特效，比如一個(gè)圖片從左邊滑到右邊，如何實(shí)現(xiàn)

input type="button" onmouseover="this.className='left'" onmousedown="this.className='right'"/

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隨便再定義兩個(gè)class即可，一個(gè)class把圖片的位置設(shè)置在左邊，一個(gè)設(shè)置在右邊，位置結(jié)合position實(shí)現(xiàn)即可。

鼠標(biāo)隨手畫(huà)的java代碼

//畫(huà)布類(lèi)

import java.awt.Graphics;

import java.awt.Polygon;

import javax.swing.JPanel;

public class MyPanel extends JPanel{

public void drawRect(Graphics g, int x, int y, int width, int height){

g.drawRect(x, y, width, height);

}

public void drawOval(Graphics g, int x, int y, int width ,int height){

g.drawOval(x, y, width, height);

}

public void drawLine(Graphics g, int x1 ,int y1 ,int x2, int y2){

g.drawLine(x1, y1, x2, y2);

}

public void drawTriangle(Graphics g, int x, int y, int borderSize){

int[] xx = {borderSize,x,borderSize*2};

int[] yy = {y,borderSize*2,borderSize*2};

g.drawPolygon(new Polygon(xx,yy,3));

}

}

//主界面類(lèi)

import java.awt.Graphics;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

public class MyPaint extends JFrame implements ActionListener{

private JPanel toolArea;

private MyPanel imageArea;

private JButton rect;

private JButton oval;

private JButton line;

private JButton triangle;

public MyPaint() {

rect = new JButton("矩形");

rect.addActionListener(this);

oval = new JButton("圓形");

oval.addActionListener(this);

line = new JButton("直線(xiàn)");

line.addActionListener(this);

triangle = new JButton("三角");

triangle.addActionListener(this);

toolArea = new JPanel(new GridLayout(4,1));

toolArea.add(rect,0);

toolArea.add(oval,1);

toolArea.add(line,2);

toolArea.add(triangle,3);

imageArea = new MyPanel();

this.add("West",toolArea);

this.add("Center",imageArea);

this.setVisible(true);

this.setBounds(112, 84, 800, 600);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

@Override

public void actionPerformed(ActionEvent e) {

Graphics g = imageArea.getGraphics();

if(e.getSource() == rect){

imageArea.drawRect(g, 10, 10, 500, 300);

}else if(e.getSource() == oval){

imageArea.drawOval(g, 50, 50, 100, 100);

}else if(e.getSource() == line){

imageArea.drawLine(g, 20, 20, 80, 80);

}else if(e.getSource() == triangle){

imageArea.drawTriangle(g, 0, 40, 100);

}

}

public static void main(String[] args) {

new MyPaint();

}

}

有點(diǎn)麻煩，沒(méi)寫(xiě)完，先給你開(kāi)個(gè)頭吧。你現(xiàn)在自己寫(xiě)寫(xiě)，有什么不懂的知識(shí)點(diǎn)再問(wèn)我好啦。我吃早餐去了。

java中當(dāng)鼠標(biāo)經(jīng)過(guò)panel是有一定效果的代碼

我只給你放了一個(gè)?panel?，你可以參考一下

要是不懂的話(huà)，繼續(xù)留言

采用了你要求的?frame?但是，panel中沒(méi)有border屬性，采用了JPanel

import java.awt.Color;

import java.awt.Frame;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import javax.swing.BorderFactory;

import javax.swing.JPanel;

public class PanelDraw extends Frame{

JPanel panel = new JPanel();

public PanelDraw() {

this.add(panel);

this.setSize(300, 200);

this.setVisible(true);

panel.addMouseListener(new MouseAdapter() {

@Override

public void mouseEntered(MouseEvent e) {

panel.setBorder(BorderFactory.createLineBorder(Color.RED));

}

@Override

public void mouseExited(MouseEvent e) {

panel.setBorder(null);

}

});

}

public static void main(String[] args) {

new PanelDraw();

}

}

用java寫(xiě)一個(gè)單擊鼠標(biāo)事件

使用組件的paint函數(shù)用于繪圖, 使用MouseListener來(lái)響應(yīng)鼠標(biāo)的點(diǎn)擊

效果圖

代碼

import?java.awt.Color;

import?java.awt.Graphics;

import?java.awt.event.*;

import?javax.swing.*;

public?class?DemoWin?extends?JFrame?{

public?DemoWin()?{

MyPanel?mp?=?new?MyPanel();

mp.addMouseListener(mp);

add(mp);

//?窗口屬性設(shè)置

setTitle("Demo");//?標(biāo)題

setSize(300,?280);//?窗口大小

setLocationRelativeTo(null);//?窗口居中

setDefaultCloseOperation(EXIT_ON_CLOSE);//?窗口點(diǎn)擊關(guān)閉時(shí),退出程序

}

public?static?void?main(String[]?args)?{

DemoWin?win?=?new?DemoWin();?//?創(chuàng)建窗口

win.setVisible(true);//?顯示窗口

}

class?MyPanel?extends?JPanel?implements?MouseListener?{

int?times;//?記錄點(diǎn)擊的次數(shù)

int?x;//?記錄鼠標(biāo)X軸的位置

int?y;//?記錄鼠標(biāo)Y軸的位置

@Override

public?void?paint(Graphics?g)?{

super.paint(g);

if?(times?==?0)?{

g.setColor(Color.BLUE);//?顏色

g.fillOval(150,?150,?50,?50);//?150,150代表位置?50,50代表寬高

}?else?if?(times?==?1)?{

g.setColor(Color.RED);

g.fillRect(150,?150,?50,?50);

}?else?{

g.setColor(Color.RED);

g.fillRect(x,?y,?50,?50);

}

repaint();

}

public?void?mouseClicked(MouseEvent?e)?{

//?if?(e.getButton()==MouseEvent.BUTTON1)?{//單擊左鍵時(shí)有效..

//?times++;//?記錄點(diǎn)擊的次數(shù)

//?x?=?e.getX();

//?y?=?e.getY();

//?}

}

public?void?mousePressed(MouseEvent?e)?{//?鼠標(biāo)按下就有效

times++;//?記錄點(diǎn)擊的次數(shù)

x?=?e.getX();

y?=?e.getY();

}

public?void?mouseReleased(MouseEvent?e)?{//?鼠標(biāo)釋放

}

public?void?mouseEntered(MouseEvent?e)?{//?鼠標(biāo)移入

}

public?void?mouseExited(MouseEvent?e)?{//?鼠標(biāo)移出

}

}

}

如何用JAVA編一個(gè) 鼠標(biāo)在在屏幕上移動(dòng)的 并點(diǎn)擊的 程序?

樓主提問(wèn)的水平很高啊，題目的要求都沒(méi)有，如何回答。。。

相關(guān)類(lèi)都在

import java.awt.*;

import javax.swing.* ;

動(dòng)作事件相關(guān)類(lèi)在import java.awt.event.*;中，在代碼頭import就可以看了

給一個(gè)相關(guān)的代碼吧，包括所有的鼠標(biāo)事件。

下面代碼包括

按下，釋放，進(jìn)入?yún)^(qū)域，離開(kāi)區(qū)域，點(diǎn)擊 這5個(gè)事件

鼠標(biāo)的相關(guān)事件會(huì)在窗口上方的文本區(qū)顯示。。。

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

public class TestMouseEvent extends JFrame implements MouseListener{

JPanel jp = new JPanel();

JTextField jtf = new JTextField();

public TestMouseEvent(){

setTitle("Mouse Event");

getContentPane().add(jtf,BorderLayout.NORTH);

getContentPane().add(jp,BorderLayout.CENTER);

jp.addMouseListener(this);

}

public static void main(String[] args){

TestMouseEvent frame = new TestMouseEvent();

frame.setSize(200,200);

frame.setVisible(true);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

public void mousePressed(MouseEvent e){

int x = e.getX();

int y = e.getY();

String s = "鼠標(biāo)在坐標(biāo)"+"("+x+","+y+")"+"出按下";

jtf.setText(s);

}

public void mouseReleased(MouseEvent e){

int x = e.getX();

int y = e.getY();

String s = "鼠標(biāo)在坐標(biāo)"+"("+x+","+y+")"+"出釋放";

jtf.setText(s);

}

public void mouseClicked(MouseEvent e){

int x = e.getX();

int y = e.getY();

String s = "鼠標(biāo)在坐標(biāo)"+"("+x+","+y+")"+"出點(diǎn)擊";

jtf.setText(s);

}

public void mouseEntered(MouseEvent e){

int x = e.getX();

int y = e.getY();

String s = "鼠標(biāo)在坐標(biāo)"+"("+x+","+y+")"+"出進(jìn)入";

jtf.setText(s);

}

public void mouseExited(MouseEvent e){

int x = e.getX();

int y = e.getY();

String s = "鼠標(biāo)在坐標(biāo)"+"("+x+","+y+")"+"出離開(kāi)";

jtf.setText(s);

}

}

名稱(chēng)欄目：java鼠標(biāo)特效的代碼,java改變鼠標(biāo)樣式
標(biāo)題網(wǎng)址：http://chinadenli.net/article6/dsgdeog.html

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