JAVA列表界面代碼

import?java.awt.*;

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import?java.awt.event.*;

import?javax.swing.*;

public?class?JListDemo?extends?JFrame?{

private JPanel topPanel;

private JList listbox;

public?JListDemo(){

setTitle(?"Simple?ListBox?Application"?);

setSize(?300,?100?);

setBackground(?Color.gray?);

topPanel?=?new?JPanel();

topPanel.setLayout(?new?BorderLayout()?);

getContentPane().add(?topPanel?);

String listData[]?=

{

"Item?1",

"Item?2",

"Item?3",

"Item?4"

};

listbox?=?new?JList(?listData?);

topPanel.add(?listbox,?BorderLayout.CENTER?);

}

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

JListDemo?mainFrame =?new?JListDemo();

mainFrame.setVisible(?true?);

}

}

Java 用戶界面設(shè)計 求界面代碼

一: 首先弄清題目的意思

A.需要的主要組件列表:

1. ?創(chuàng)建一個窗口,窗口標(biāo)題叫Information

2. ?3個標(biāo)簽, 用于顯示文字 Name Number Class

3. ?3個文本框, 用于填寫信息

4. ?1個按鈕, ?文字是確認(rèn)

5. ?1個文本域

B.業(yè)務(wù)邏輯

1. 當(dāng)點擊按鈕確認(rèn)的時候, 把 文本框的信息顯示到文本域

C.設(shè)計的主要技術(shù)

JLabel , JButton, JTextField ...等, 都是swing的組件 , ?所以應(yīng)該使用swing進行創(chuàng)建

二: ?確定使用的布局

swing雖然重寫了大部分的組件, 但是布局, 依舊沿襲awt技術(shù)

分析圖片上的布局:

至少有2種方法可以實現(xiàn),?

方法一: 絕對布局 , 優(yōu)點: ?配合可視化GUI拖曳, 可以完美的實現(xiàn)圖上的組件的位置

但是缺點也是致命的, 不同的操作系統(tǒng)平臺下, 可能會出現(xiàn)位置的移動,

只適合開發(fā)平臺, 移植效果差 . ?所以不推薦使用

方法二: 靈活的表格布局, 配合流式布局 , 所有操作系統(tǒng)下,顯示效果都比較統(tǒng)一.?

三: 效果圖

四: 參考代碼

import?java.awt.*;

import?java.awt.event.*;

import?javax.swing.*;

public?class?FrameDemo?extends?JFrame?{

//申明需要的組件

private?final?JTextField?jtf1,jtf2,jtf3;

private?final?JTextArea?jta;

public?FrameDemo()?{

setTitle("Information");//設(shè)置窗口標(biāo)題

setSize(320,?360);//設(shè)置窗口大小

setLocationRelativeTo(null);//設(shè)置窗口居中

setDefaultCloseOperation(EXIT_ON_CLOSE);//設(shè)置關(guān)閉時退出虛擬機

getContentPane().setLayout(new?FlowLayout());//設(shè)置窗口布局為流式布局

JPanel?jp?=?new?JPanel(new?GridLayout(4,?2));//設(shè)置jp面板為表格布局4行2列

//第一行

JPanel?jp01?=?new?JPanel();

JLabel?jl1?=?new?JLabel("Name:");

jp01.add(jl1);

JPanel?jp1?=?new?JPanel();

jtf1?=?new?JTextField(8);

jp1.add(jtf1);

//第二行

JPanel?jp02?=?new?JPanel();

JLabel?jl2?=?new?JLabel("Number:");

jp02.add(jl2);

JPanel?jp2?=?new?JPanel();

jtf2?=?new?JTextField(8);

jp2.add(jtf2);

//第三行

JPanel?jp03?=?new?JPanel();

JLabel?jl3?=?new?JLabel("Class:");

jp03.add(jl3);

JPanel?jp3?=?new?JPanel();

jtf3?=?new?JTextField(8);

jp3.add(jtf3);

//第四行

JPanel?jp04?=?new?JPanel();

JLabel?jl4?=?new?JLabel("");

jp04.add(jl4);

JPanel?jp4?=?new?JPanel();

JButton?jb?=?new?JButton("確認(rèn)");

jp4.add(jb);

jp.add(jp01);

jp.add(jp1);

jp.add(jp02);

jp.add(jp2);

jp.add(jp03);

jp.add(jp3);

jp.add(jp04);

jp.add(jp4);

getContentPane().add(jp);

jta?=?new?JTextArea();

jta.setColumns(20);//設(shè)置文本域的大小

jta.setEditable(false);//設(shè)置文本域不可編輯

jta.setBackground(jp.getBackground());//設(shè)置文本域的背景色和面板一樣

getContentPane().add(jta);

jb.addActionListener(new?ActionListener()?{//給按鈕添加事件

public?void?actionPerformed(ActionEvent?e)?{//點擊按鈕,顯示信息到文本域

String?name?=?jtf1.getText();

String?number?=?jtf2.getText();

String?clazz?=?jtf3.getText();

jta.setText("You?name?is?"+name+"?number?is?"+number+"?class?is?"+clazz);

}

});

}

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

new?FrameDemo().setVisible(true);//創(chuàng)建窗口,被設(shè)置為可見

}

}

五: 拓展

雖然圖形界面的實現(xiàn)方法是多樣的, ?我們一定要根據(jù)具體情況, 選擇一個比較優(yōu)化的 合理的, 符合業(yè)務(wù)邏輯的實現(xiàn)方法

JAVA的圖形用戶界面代碼

package hao;

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", "藍色", "黃色", "綠色" };

String[] str_BackColor = { "無色", "灰色", "淡紅", "淡藍", "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)建一個可以容納多個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~~"),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")) {

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;

}

}

用java寫一個登錄界面的代碼，哪位大神會啊，謝謝。

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.JFrame;

import?javax.swing.JLabel;

import?javax.swing.JOptionPane;

import?javax.swing.JPasswordField;

import?javax.swing.JTextField;

public?class?Test26?{

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

final?String?userName?=?"abc";

final?String?passwrod?=?"123";

JFrame?jFrame?=?new?JFrame("登陸界面");

Dimension?dimension?=?Toolkit.getDefaultToolkit().getScreenSize();

jFrame.setBounds(((int)dimension.getWidth()?-?200)?/?2,?((int)dimension.getHeight()?-?300)?/?2,?200,?150);

jFrame.setResizable(false);

jFrame.setLayout(null);

jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JLabel?label1?=?new?JLabel("姓名");

label1.setBounds(10,?10,?100,?30);

jFrame.add(label1);

JLabel?label2?=?new?JLabel("密碼");

label2.setBounds(10,?40,?100,?30);

jFrame.add(label2);

final?JTextField?text1?=?new?JTextField();

text1.setBounds(50,?15,?130,?20);

jFrame.add(text1);

final?JPasswordField?text2?=?new?JPasswordField();

text2.setBounds(50,?45,?130,?20);

jFrame.add(text2);

JButton?button?=?new?JButton("Login");

button.setBounds(10,?75,?170,?40);

button.addActionListener(new?ActionListener()?{

@Override

public?void?actionPerformed(ActionEvent?e)?{

if(userName.equals(text1.getText())??passwrod.equals(text2.getText()))?{

JOptionPane.showMessageDialog(null,?"登陸成功誤",?"提示",?JOptionPane.INFORMATION_MESSAGE);

}?else?{

JOptionPane.showMessageDialog(null,?"錯誤",?"提示",?JOptionPane.ERROR_MESSAGE);

text1.setText("");

text2.setText("");

}

}

});

jFrame.add(button);

jFrame.setVisible(true);

}

}

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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();

}

}

登陸界面的java代碼怎么寫？

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

import java.sql.*;

class LoginFrm extends JFrame implements ActionListener

{

JLabel lbl1=new JLabel("用戶名");

JLabel lbl2=new JLabel("密碼");

JTextField txt=new JTextField(15);

JPasswordField pf=new JPasswordField();

JButton btn1=new JButton("確定");

JButton btn2=new JButton("取消");

public LoginFrm()

{

this.setTitle("登陸");

JPanel jp=(JPanel)this.getContentPane();

jp.setLayout(new GridLayout(3,2,10,10));

jp.add(lbl1);jp.add(txt);

jp.add(lbl2);jp.add(pf);

jp.add(btn1);jp.add(btn2);

btn1.addActionListener(this);

btn2.addActionListener(this);

}

public void actionPerformed(ActionEvent ae)

{

if(ae.getSource()==btn1)

{

try

{

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver")；

Connection con=DriverManager.getConnection("jdbc:odbc:MyDB","","");

Statement cmd=con.createStatement();

ResultSet rs=cmd.executeQuery("select * from loginAndpassword where login='"+txt.getText()+"' and password='"+pf.getText()+"'");

if(rs.next())

{

JOptionPane.showMessageDialog(null,"登陸成功！");

}

else

JOptionPane.showMessageDialog(null,"用戶名或密碼錯誤！");

} catch(Exception ex){}

if(ae.getSource()==btn2)

{

txt.setText("");

pf.setText("");

}

}

}

public static void main(String arg[])

{

JFrame.setDefaultLookAndFeelDecorated(true);

LoginFrm frm=new LoginFrm();

frm.setSize(400,200);

frm.setVisible(true);

}

}

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