java圖型代碼練習(xí) java繪圖程序代碼
JAVA的圖形用戶界面代碼
package hao;
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import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.io.File;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextPane;
import javax.swing.text.BadLocationException;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;
public class ChatPanel extends JPanel {
private static final long serialVersionUID = 1L;
JButton send,record,saveRecord,image;
JTextArea inputArea;
JTextPane text;//注意用法****************************************************************************
JComboBox fontName = null, fontSize = null, fontStyle = null, fontColor = null,fontBackColor = null;
public StyledDocument doc = null; JScrollPane scrollPane;JPanel textChat;
JButton music;
public ChatPanel() {
setLayout(new BorderLayout());
text = new JTextPane();
text.setEditable(false);
doc = text.getStyledDocument();//跟蹤文本和圖片寫到該區(qū)域的位置*************************************
scrollPane = new JScrollPane(text);
//注意下面對(duì)JComboBox的巧用***********************************************************************
String[] str_name = { "宋體", "黑體", "Dialog", "Gulim" };
String[] str_Size = { "12", "14", "18", "22", "30", "40" };
String[] str_Style = { "常規(guī)", "斜體", "粗體", "粗斜體" };
String[] str_Color = { "黑色", "紅色", "藍(lán)色", "黃色", "綠色" };
String[] str_BackColor = { "無(wú)色", "灰色", "淡紅", "淡藍(lán)", "淡黃", "淡綠" };
fontName = new JComboBox(str_name);
fontSize = new JComboBox(str_Size);
fontStyle = new JComboBox(str_Style);
fontColor = new JComboBox(str_Color);
fontBackColor = new JComboBox(str_BackColor);
fontName.setBackground(new Color(255,153,255));
fontSize.setBackground(new Color(255,153,255));
fontStyle.setBackground(new Color(255,153,255));
fontColor.setBackground(new Color(255,153,255));
fontBackColor.setBackground(new Color(255,153,255));
Box box = Box.createVerticalBox();//創(chuàng)建一個(gè)可以容納多個(gè)Box組件的Box*******************************
Box box_1 = Box.createHorizontalBox();
Box box_2 = Box.createHorizontalBox();
Box box_4 = Box.createHorizontalBox();
box.add(box_1);
box.add(box_2);
box.add(box_4);
JLabel b1= new JLabel("字體~~"), b2 = new JLabel("樣式~~"),b3 = new JLabel("字號(hào)~~"),b4 = new JLabel("顏色~~"),b5 = new JLabel("背景~~");
b1.setBackground(new Color(255,153,255));
b2.setBackground(new Color(255,153,255));
b3.setBackground(new Color(255,153,255));
b4.setBackground(new Color(255,153,255));
b5.setBackground(new Color(255,153,255));
box_1.add(b1);
box_1.add(fontName);
box_1.add(Box.createHorizontalStrut(8));
box_1.add(b2);
box_1.add(fontStyle);
box_1.add(Box.createHorizontalStrut(8));
box_1.add(b3);
box_1.add(fontSize);
box_2.add(Box.createHorizontalStrut(8));
box_2.add(b4);
box_2.add(fontColor);
box_2.add(Box.createHorizontalStrut(8));
box_4.add(b5);
box_4.add(fontBackColor);
textChat = new JPanel();
textChat.setLayout(new BorderLayout());
textChat.setBackground(new Color(255,153,255));
inputArea = new JTextArea(3, 20);
inputArea.setLineWrap(true); //設(shè)置文本區(qū)的換行策略。88888*********************************
send = new JButton("發(fā)送");
record=new JButton("顯示記錄");
saveRecord=new JButton("儲(chǔ)存記錄");
image=new JButton("表情");
send.setBackground(new Color(255,153,255));
record.setBackground(new Color(255,153,255));
saveRecord.setBackground(new Color(255,153,255));
image.setBackground(new Color(255,153,255));
Box box_3 = Box.createHorizontalBox();
box_3.add(send); box_3.add(Box.createHorizontalStrut(8));//設(shè)置按鈕間距*************************888
box_3.add(record); box_3.add(Box.createHorizontalStrut(8)); //設(shè)置按鈕間距*************************888
box_3.add(saveRecord); box_3.add(Box.createHorizontalStrut(8));//設(shè)置按鈕間距*************************888
box_3.add(image);
box.setBorder(BorderFactory.createLineBorder(new Color(102,102,0),5));//設(shè)置Box的邊框線********************
box_3.setBorder(BorderFactory.createLineBorder(new Color(102,102,0),5));
textChat.add(box,BorderLayout.NORTH);
textChat.add(inputArea,BorderLayout.CENTER);
textChat.add(box_3, BorderLayout.SOUTH);
inputArea.requestFocus(true);
inputArea.setBorder(BorderFactory.createLineBorder(new Color(102,102,0),5));//設(shè)置輸入窗口邊框線*******************
text.setBorder(BorderFactory.createLineBorder(new Color(102,102,0),8));//設(shè)置輸入窗口邊框線*******************
JPanel audioPanel = new JPanel();//最上面的邊框************************************************************************
audioPanel.setBackground(new Color(255,153,255));
audioPanel.setLayout(new GridLayout(1,1));
music = new JButton("想聽就聽");
music.setPreferredSize(new Dimension(320,50));
music.setBorder(BorderFactory.createLineBorder(Color.BLACK,10));//設(shè)置輸入窗口邊框線*******************
audioPanel.add(music);
add(audioPanel, BorderLayout.NORTH);
add(scrollPane,BorderLayout.CENTER);
add(textChat, BorderLayout.SOUTH);
}
void insertIcon(ImageIcon image) {
text.setCaretPosition(doc.getLength());
text.insertIcon(image);
insert(new MessageStyle());//?????????????????????????????????????????????????????????????????????????????/
}
public void insert(MessageStyle attrib) {
try {
doc.insertString(doc.getLength(), attrib.getText() + "\n", attrib.getAttrSet());//寫完后接著換行************
} catch (BadLocationException e) {
e.printStackTrace();
}
}
public MessageStyle getMessageStyle(String line) {
MessageStyle att = new MessageStyle();
att.setText(line);
att.setName((String) fontName.getSelectedItem());
att.setSize(Integer.parseInt((String) fontSize.getSelectedItem()));
String temp_style = (String) fontStyle.getSelectedItem();
if (temp_style.equals("常規(guī)")) {
att.setStyle(MessageStyle.GENERAL);
}
else if (temp_style.equals("粗體")) {
att.setStyle(MessageStyle.BOLD);
}
else if (temp_style.equals("斜體")) {
att.setStyle(MessageStyle.ITALIC);
}
else if (temp_style.equals("粗斜體")) {
att.setStyle(MessageStyle.BOLD_ITALIC);
}
String temp_color = (String) fontColor.getSelectedItem();
if (temp_color.equals("黑色")) {
att.setColor(new Color(0, 0, 0));
}
else if (temp_color.equals("紅色")) {
att.setColor(new Color(255, 0, 0));
}
else if (temp_color.equals("藍(lán)色")) {
att.setColor(new Color(0, 0, 255));
}
else if (temp_color.equals("黃色")) {
att.setColor(new Color(255, 255, 0));
}
else if (temp_color.equals("綠色")) {
att.setColor(new Color(0, 255, 0));
}
String temp_backColor = (String) fontBackColor.getSelectedItem();
if (!temp_backColor.equals("無(wú)色")) {
if (temp_backColor.equals("灰色")) {
att.setBackColor(new Color(200, 200, 200));
}
else if (temp_backColor.equals("淡紅")) {
att.setBackColor(new Color(255, 200, 200));
}
else if (temp_backColor.equals("淡藍(lán)")) {
att.setBackColor(new Color(200, 200, 255));
}
else if (temp_backColor.equals("淡黃")) {
att.setBackColor(new Color(255, 255, 200));
}
else if (temp_backColor.equals("淡綠")) {
att.setBackColor(new Color(200, 255, 200));
}
}
return att;
}
}
求一個(gè)簡(jiǎn)單的java代碼：（圖形界面）
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
public class vv extends JDialog {
private static final long serialVersionUID = 1L;
private JLabel l_Id = new JLabel("登陸賬戶", JLabel.CENTER);
private JLabel l_pw = new JLabel("登陸密碼", JLabel.CENTER);
private JTextField t_Id = new JTextField(10);
private JPasswordField t_pw = new JPasswordField(10);
private JButton btnLogin;
private JButton btnClose;
public vv() {
super();
setResizable(false);
getContentPane().setBackground(new Color(225, 225, 225));
getContentPane().setLayout(null);
initialize();
}
protected void initialize() {
setTitle("系統(tǒng)登錄");
l_Id.setBounds(48, 43, 53, 25);
t_Id.setBounds(110, 43, 150, 25);
l_pw.setBounds(48, 93, 53, 25);
t_pw.setBounds(110, 93, 150, 25);
getContentPane().add(l_Id);
getContentPane().add(l_pw);
getContentPane().add(t_Id);
getContentPane().add(t_pw);
btnLogin = new JButton();
btnLogin.setText("登 錄");
btnLogin.setBounds(70, 142, 85, 28);
btnLogin.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
addBtnLoginActionListener();
}
});
getContentPane().add(btnLogin);
btnClose = new JButton();
btnClose.setText("關(guān) 閉");
btnClose.setBounds(175, 142, 85, 28);
btnClose.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
dispose();
System.exit(-1);
}
});
getContentPane().add(btnClose);
}
private void addBtnLoginActionListener() {
String user = t_Id.getText();
String password = new String(t_pw.getPassword());
if (user.equals("")) {
JOptionPane.showMessageDialog(this, "帳號(hào)不可為空", "Caution",
JOptionPane.WARNING_MESSAGE);
return;
}
if (password.equals("")) {
JOptionPane.showMessageDialog(this, "密碼不可為空", "Caution",
JOptionPane.WARNING_MESSAGE);
return;
}
String sql = "select * FROM login WHERE id = '" + user + "' and pw = '"
+ password + "'";
boolean success = false;
// TODO:數(shù)據(jù)校驗(yàn) success = executeQuery(sql);
if (success) {
// TODO： 如果數(shù)據(jù)校驗(yàn)成功 顯示主界面 并關(guān)閉登錄界面
JOptionPane.showMessageDialog(this, "成功登錄", "提示",
JOptionPane.INFORMATION_MESSAGE);
this.dispose();
} else {
JOptionPane.showMessageDialog(this, "帳號(hào)或密碼錯(cuò)誤!", "警告",
JOptionPane.WARNING_MESSAGE);
t_pw.requestFocus(); // 密碼框選中
}
}
public Dimension getPreferredSize() {
return new Dimension(320, 170);
}
public void show() {
Toolkit tk = Toolkit.getDefaultToolkit();
Dimension screen = tk.getScreenSize();
Dimension d = getSize();
this.setLocation((screen.width - d.width) / 2,
(screen.height - d.height) / 2);
// 輸入密碼后回車相當(dāng)于點(diǎn)擊了登錄按鈕
getRootPane().setDefaultButton(btnLogin);
t_pw.requestFocus();
setDefaultCloseOperation(DISPOSE_ON_CLOSE);
setSize(300, 220);
super.show();
}
public static void main(String[] args) {
vv loginFrame = new vv();
loginFrame.setVisible(true);
}
}
希望對(duì)你有幫助
java圖形界面代碼
import?java.awt.*;
import?java.awt.event.*;
import?java.io.*;
import?javax.swing.*;
public?class?ReadBook?extends?JFrame?{
JTextArea?jta;
JTextField?jtf;
JButton?jb;
public?ReadBook()?{
jta?=?new?JTextArea();
jtf?=?new?JTextField(30);
jtf.setText("文件保存路徑如c:\\ab.txt");
jb?=?new?JButton("保存文字");
JPanel?jp?=?new?JPanel();
jp.add(jtf);
jp.add(jb);
add(jta);
add(jp,?BorderLayout.SOUTH);
setBounds(500,?100,?500,?380);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
jb.addActionListener(new?ActionListener()?{
@Override
public?void?actionPerformed(ActionEvent?e)?{
//-------------核心代碼---------
String?path?=?jtf.getText();
File?f?=?new?File(path);
String?txt?=?jta.getText().replaceAll("\n",?"\r\n");
try?{
BufferedWriter?bw?=?new?BufferedWriter(new?FileWriter(f));
bw.write(txt);//寫入文件中
bw.close();
}?catch?(Exception?e1)?{
e1.printStackTrace();
}
//-------------核心代碼---------
}
});
}
public?static?void?main(String[]?args)?{
new?ReadBook();
}
}
Java圖形類模擬
package?com.baidu;
public?class?Circle?{
private?int?radius; //圓半徑
private?double?area; //圓面積
public?final?double?PI?=?3.14; //常量
public?Circle(){
}
public?Circle(int?radius,?double?area)?{
this.radius?=?radius;
this.area?=?area;
}
public?double?getArea(int?radius){
return?PI*radius*radius;
}
public?int?getRadius()?{
return?radius;
}
public?void?setRadius(int?radius)?{
this.radius?=?radius;
}
}
package com.zhidao;
import com.baidu.Circle;
public class Cylinder extends Circle{
protected double h; //高
public double getH() { //獲取高
return h;
}
public void setH(double h) { //設(shè)置高
this.h = h;
}
public double getArea(int radius){
return h*PI*radius*radius;
}
}
package?com.test;
import?com.baidu.Circle;
import?com.zhidao.Cylinder;
public?class?Test?{
public?static?void?main(String[]?args)?{
Circle?c?=?new?Circle();
c.setRadius(3);
System.out.println("圓面積"+c.getArea(c.getRadius()));
Cylinder?cy?=?new?Cylinder();
cy.setRadius(6);
cy.setH(3);
System.out.println(cy.getRadius());
double?carea?=?cy.getArea(cy.getRadius());
System.out.println("圓柱體體積:"+carea);
}
}
當(dāng)前題目：java圖型代碼練習(xí) java繪圖程序代碼
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