java程序怎么用图形界面表现

‘壹’ 求教用java实现如下图形界面功能。

粗略地做了一个出来，闪烁的问题暂时无法解决，其他的还可以吧，先上代码：

importjava.awt.Graphics;
importjava.awt.Image;
importjava.awt.event.MouseEvent;
importjava.awt.event.MouseListener;
importjava.awt.event.MouseMotionListener;
importjava.io.IOException;
importjava.util.ArrayList;
importjava.util.List;
importjavax.imageio.ImageIO;
importjavax.swing.JFrame;

public桐旁,MouseMotionListener{
	
	privateImageoffScreenImage;
	privateImagebackground,sprite;
	
	privatestaticfinalintWIDTH=800;
	privatestaticfinalintHEIGHT=600;
	
	privateintx0=0,y0=0;
	privateintx1,y1;
	
	privateList<Bounds>bounds;
	privateBoundsmCurrentBounds=null;

	publicTestImage(){
		super("绘图");
		bounds=newArrayList<Bounds>();
	}
	
	privatevoidlaunch(){
		setSize(WIDTH,HEIGHT);
		setResizable(false);
		setVisible(true);
		
		try{
			background=ImageIO.read(TestImage.class.getResource("/res/clock.jpg"));
			sprite=ImageIO.read(TestImage.class.getResource("/res/light_buble2.png"链槐));
		}catch(IOExceptione){
			e.printStackTrace();
		}
		
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		setLocationRelativeTo(null);
		newThread(newRepaint()).start();
		addMouseListener(this);
		addMouseMotionListener(this);
	}

	@Override
	publicvoipdate(Graphicsg){
		if(null==offScreenImage){
			offScreenImage=createImage(WIDTH,HEIGHT);
		}
		GraphicsgImage=offScreenImage.getGraphics();
		gImage.clearRect(0,0,WIDTH,HEIGHT);
		paint(gImage);
		g.drawImage(offScreenImage,0,0,null);
	}

	@Override
	publicvoidpaint(Graphicsg){
		g.drawImage(background,0,0,WIDTH,HEIGHT,null);
		
		for(Boundsbound:bounds)棚轮友{
			g.drawImage(sprite,bound.x0,bound.y0,bound.x1-bound.x0,bound.y1-bound.y0,null);
		}
		
		if(null!=mCurrentBounds){
			g.drawImage(sprite,mCurrentBounds.x0,mCurrentBounds.y0,
					Math.abs(mCurrentBounds.x1-mCurrentBounds.x0),
					Math.abs(mCurrentBounds.y1-mCurrentBounds.y0),null);
		}
	}


	publicstaticvoidmain(String[]args){
		newTestImage().launch();
	}

	@Override
	publicvoidmouseClicked(MouseEvente){
	}
	@Override
	publicvoidmouseEntered(MouseEvente){
	}
	@Override
	publicvoidmouseExited(MouseEvente){
	}

	@Override
	publicvoidmousePressed(MouseEvente){
		x1=x0=e.getX();
		y1=y0=e.getY();
		mCurrentBounds=newBounds(x0,y0,x1,y1);
	}
	@Override
	publicvoidmouseReleased(MouseEvente){
		if(null!=mCurrentBounds){
			bounds.add(mCurrentBounds);
		}
		mCurrentBounds=null;
	}

	@Override
	publicvoidmouseDragged(MouseEvente){
		if(null!=mCurrentBounds){
			intx=e.getX();
			inty=e.getY();
			
			if(x>x0){
				x1=x;
			}else{
				x0=x;
			}
			if(y>y0){
				y1=y;
			}else{
				y0=y;
			}
			
			mCurrentBounds.setBounds(x0,x1,y0,y1);
		}
	}
	@Override
	publicvoidmouseMoved(MouseEvente){
		
	}

	{
		@Override
		publicvoidrun(){
			while(true){
				try{
					Thread.sleep(30L);
					repaint();
				}catch(InterruptedExceptione){
					e.printStackTrace();
				}
			}
		}
	}
}
classBounds{
	publicintx0;
	publicinty0;
	publicintx1;
	publicinty1;
	
	publicBounds(intx0,inty0,intx1,inty1){
		this.x0=x0;
		this.y0=y0;
		this.x1=x1;
		this.y1=y1;
	}
	
	publicvoidsetBounds(intx0,intx1,inty0,inty1){
		this.x0=x0;
		this.x1=x1;
		this.y0=y0;
		this.y1=y1;
	}
}

运行时就是鼠标点击画板并按住，然后拖拽就可以画一个电灯出来。所需的图片资源在附件内，根据代码相信你应该能够知道要放到哪个目录下吧。运行效果也截一个图给你。

‘贰’ Java编写一个图形界面

我觉得还是我的好些蚂亏。。。

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.FileOutputStream;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingConstants;

public class TestSwing extends JFrame{
private JLabel label1, label2, label3, label4,label5,label6,label7;

private JPanel panel,panel1,panel2;
private JTextField tField1,tField2,tField3,tField4,tField5,tField6,tField7,tField8,tField9;

private JButton button;

private String filepath="c:\\info.dat";
public TestSwing(){
init();
this.setSize(300, 280);
this.setLocation(
(Toolkit.getDefaultToolkit().getScreenSize().width - this
.getSize().width) /搏物尘基禅 2,
(Toolkit.getDefaultToolkit().getScreenSize().height - this
.getSize().height) / 2);
this.setResizable(false);
this.setVisible(true);
this.setTitle("info");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

public void init(){
initPanel();
initLabel();
initTextField();
initButton();
initContent();
}

private void initContent(){
panel1.add(label1);
panel1.add(tField1);
panel1.add(label2);
panel1.add(tField2);
panel1.add(label3);
panel1.add(tField3);
panel1.add(label4);
panel1.add(tField4);
panel1.add(label5);
panel1.add(tField5);
panel1.add(label6);
panel1.add(tField6);
panel1.add(label7);
panel1.add(tField7);
panel1.add(tField8);
panel1.add(tField9);

panel2.add(button);

panel.add(panel1,BorderLayout.CENTER);
panel.add(panel2,BorderLayout.SOUTH);

getContentPane().add(panel);
}

private void initPanel(){
panel = new JPanel();
panel.setLayout(new FlowLayout());
panel.setBackground(Color.WHITE);

panel1 = new JPanel();
GridLayout upLayout = new GridLayout(8, 2);
panel1.setLayout(upLayout);

panel2 = new JPanel();
panel2.setLayout(new FlowLayout());
}
private void initLabel(){
label1 = new JLabel("IP地址", SwingConstants.LEFT);
label2 = new JLabel("端口", SwingConstants.LEFT);
label3 = new JLabel("访问地址", SwingConstants.LEFT);
label4 = new JLabel("XXXXX", SwingConstants.LEFT);
label5 = new JLabel("XXXXX", SwingConstants.LEFT);
label6 = new JLabel("XXXXX", SwingConstants.LEFT);
label7 = new JLabel("XXXXX", SwingConstants.LEFT);
}

private void initTextField(){
tField1 = new JTextField(10);
tField2 = new JTextField(10);
tField3 = new JTextField(10);
tField4 = new JTextField(10);
tField5 = new JTextField(10);
tField6 = new JTextField(10);
tField7 = new JTextField(10);
tField8 = new JTextField(10);
tField9 = new JTextField(10);
}
private void initButton(){
button = new JButton("完成");
button.addMouseListener(new MouseAdapter(){
//左键点击
public void mouseClicked(MouseEvent e) {
String ipv = tField1.getText().trim();
String portv = tField2.getText().trim();
String addrv = tField3.getText().trim();
String xx1v = tField4.getText().trim();
String xx2v = tField5.getText().trim();
String xx3v = tField6.getText().trim();
String xx4v = tField7.getText().trim();
String inputx = tField8.getText().trim();
String inputxv = tField9.getText().trim();
createFile(ipv, portv, addrv, xx1v, xx2v, xx3v, xx4v, inputx, inputxv);
JOptionPane.showMessageDialog(null, "保存成功");
tField1.setText("");
tField2.setText("");
tField3.setText("");
tField4.setText("");
tField5.setText("");
tField6.setText("");
tField7.setText("");
tField8.setText("");
tField9.setText("");
}

});
}
public static void main(String[]args){
new TestSwing();
}

private void createFile(String ipv,String portv ,String addrv,String xx1v,String xx2v,String xx3v,String xx4v,String inputx,String inputxv){
StringBuffer context = new StringBuffer();
context.append("ip=").append(ipv).append("\n");
context.append("port=").append(portv).append("\n");
context.append("addr=").append(addrv).append("\n");
context.append("xx1=").append(xx1v).append("\n");
context.append("xx2=").append(xx2v).append("\n");
context.append("xx3=").append(xx3v).append("\n");
context.append("xx4=").append(xx4v).append("\n");
context.append(inputx).append("=").append(inputxv).append("");
FileOutputStream fos = null;
try {
fos = new FileOutputStream(filepath);
fos.write(context.toString().getBytes());
} catch (Exception e) {
} finally {
if (fos != null)
try {
fos.close();
} catch (Exception e) {
}
}
}
}

‘叁’ 如何在Java中利用图形界面技术设计一个能够完成加、减、乘、除和取余运算的图形用户界面应用程序

package test;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Z extends JFrame implements ActionListener, FocusListener {
private String[] total = { "1", "2", "3", "+", "4", "5", "6", "-", "7", "8", "9", "*", "0", ".", "=", "/" }; // 总数组
private String[] other = { "clear", "delete" }; // 其它功能数组
private String[] symbol = { "+", "-", "*", "/" }; // 符号数组
private String multinumber = "0", operator1 = "", exists = "", operator2 = null, s = "";
// multinumber(多位数) operator1(运算符) exists(存在的)
private double d1, d2 = 0;
private int Count = 0;
JPanel jptotal = new JPanel(); // 总面板
JTextField jtexternal = new JTextField("0"); // 外部文本框
JTextField jtinside = new JTextField(); // 内部文本框
JPanel jptop1 = new JPanel(); // 顶部面板1
JPanel jptop2 = new JPanel(); // 顶部面板2
JPanel jpmiddle = new JPanel(); // 中部面板

public Z() {
jptotal.setLayout(new BorderLayout());
// 使用边界布局管理器
jptop1.setLayout(new GridLayout(2, 0));
jptop1.add(jtexternal);
jptop2.setLayout(new GridLayout(0, 2));
for (int i = 0; i < other.length; i++) {
JButton jbi = new JButton("" + other[i]);
jbi.setSize(100, 10);
jptop2.add(jbi);
jbi.addActionListener(this);
}
jpmiddle.setLayout(new GridLayout(4, 0));
for (int i = 0; i < total.length; i++) {
JButton jbi = new JButton("" + total[i]);
jpmiddle.add(jbi);
jbi.addActionListener(this);
}
jtexternal.addFocusListener(this);
jtexternal.add(jtinside);
jtinside.addFocusListener(this);
// 上面三行代码的作用是让文本框不可被选中
jptop1.add(jptop2);
jptotal.add(jptop1, "North");
// 以jp1为一个整体,让jp1里面的内容从最上面开始填充
jptotal.add(jpmiddle);
add(jptotal);
setVisible(true);
setSize(500, 500);
this.setLocationRelativeTo(null);
this.setDefaultCloseOperation(EXIT_ON_CLOSE);
}

// ctrl+/ :注释
public void actionPerformed(ActionEvent e) throws ArithmeticException {
try {
String inputing = e.getActionCommand();
// 表示获取当前输入的内容
if (inputing.equals(".")) {
Count++;
}
exists = jtexternal.getText();
if (operator2 != null) {
int k = 0;
for (int i = 0; i < symbol.length; i++) {
if (operator2.equals(symbol[i])) {
k = k + 1;
}
if (inputing.equals(symbol[i])) {
k = k + 1;
}
if (k == 2) {
jtexternal.setText(exists.substring(0, exists.length() - 1) + inputing);
operator1 = inputing;
return;
}
// 实现四则运算符不可同时存在,新输入的替换旧的
if (operator2.equals(symbol[i]) && inputing.equals(".")) {
return;
}
// 实现四则运算符和点不可挨着出现(点后面可以出现四则运算符,点前面不可出现)
}
}
if (exists.equals("0")) {
if (inputing.equals(".") || (inputing.equals("+")) || (inputing.equals("-")) || (inputing.equals("*"))
|| (inputing.equals("/"))) {
jtexternal.setText("0" + inputing);
} else {
jtexternal.setText(inputing);
}
} else {
jtexternal.setText(exists + inputing);
}
// 实现如果0前面没有非0数字的话,那么无论输入多少次0,都只显示一个0,如果输入其它数字,0将会被替换
if ((d1 == 0.0 || d2 == 0.0) && inputing.equals("=") && !exists.substring(0, 1).equals("0")) {
return;
}
// 实现如果文本框内存在数字,那么输入等号,将打印其本身
if (inputing.equals("clear")) {
multinumber = "0";
exists = "";
operator1 = "";
jtexternal.setText("0");
operator2 = null;
d2 = 0;
s = "";
Count = 0;
d1 = 0.0;
// 实现,当点击clear时,文本框内将被清空至0,所有数据都将还原至初始状态
} else if (inputing.equals("delete")) {
if (exists.length() <= 1 || s.equals("=")) {
jtexternal.setText("0");
multinumber = "0";
exists = "";
operator1 = "";
operator2 = null;
d2 = 0;
s = "";
Count = 0;
d1 = 0;
// 实现,按delete删除刚输入的内容,如果将最后一个数字删除,那么效果同按clear
} else {
if (inputing.equals("+") || inputing.equals("-") || inputing.equals("*") || inputing.equals("/")) {
Count = 1;
}
jtexternal.setText(exists.substring(0, exists.length() - 1));
// 将operator2存储上一次值
operator2 = exists.substring(exists.length() - 2, exists.length() - 1);
/*
* 实现如果四则运算符后面有数字的话
* 那么如果此时按删除键
* 删除之后如果新输入的还是四则运算符话
* 那么将会将原来的四则运算符替换成新输入的
*/
}
} else if (!inputing.equals("+") && !inputing.equals("-") && !inputing.equals("*") && !inputing.equals("/")
&& !inputing.equals("=")) {
// 判断输入是否为数字
if (s.equals("=")) {
if (exists.equals("除数不能为0") || new Double(exists) == d1) {
if (inputing.equals(".")) {
jtexternal.setText("0" + inputing);
} else {
jtexternal.setText(inputing);
}
}
s = "";
}
// 实现一次计算完成之后,可以进行新的运算
if (multinumber == null) { // 多位数计算
multinumber = inputing;
} else {
multinumber += inputing;
}
d1 = new Double(multinumber);
if (operator1.equals("+")) { // 进行四则运算
if (d2 == 0) {
if (operator1.equals("*") || operator1.equals("/")) {
d2 = 1;
}
}
// 实现,当四则运算符后面没有数字时,那么输入等号后结果将为符号前面的结果,如果符号前面只有一个数字,那么将打印自身
d1 = d1 + d2;
} else if (operator1.equals("-")) {
d1 = d2 - d1;
} else if (operator1.equals("*")) {
d1 = d1 * d2;
} else if (operator1.equals("/")) {
d1 = d2 / d1;
}
// 利用临时变量f2,实现四则运算
operator2 = inputing;
} else if (!inputing.equals("=")) { // [四则运算符] 输入等号后继续进行计算
multinumber = "0";
operator1 = inputing;
d2 = d1;
operator2 = inputing;
s = "";
Count = 0;
// 实现小数运算
} else { // 就是 [=] 得出最终结果
jtexternal.setText("" + d1);
Count = 0;
s = "=";
multinumber = "0";
if (operator2.equals("0") && "/".equals(operator1)) {
operator2 = null;
d1 = 0;// 将非法运算值替换成正确值
throw new ArithmeticException();// 指定抛出异常的条件
//赋值计算不抛算数异常,如果想让其抛出,必须指定条件重新抛出异常
} else {
operator1 = inputing;
operator2 = null;
d2 = 0;
} // 计算结果
if (inputing.equals("=") && (d1 == 0.0 || d2 == 0.0)) {
return;
}
// 实现等号不可重复输入
}
} catch (ArithmeticException e1) {
jtexternal.setText("除数不能为0");
// 指定抛出异常内容
}
}

public static void main(String[] args) {
new Z();
}

public void focusGained(FocusEvent e) {
jtinside.requestFocus();
// 让焦点聚焦到内部文本框,实现外部文本框的不可聚焦功能
}

public void focusLost(FocusEvent e) {

}
}

‘肆’ java 如何在图形界面显示程序运行结果

如果只是一些文本要显示，可以在上面加个JTextArea,JTextField之类的组件，用这些组件的对象调用setText("")方法（括号里是字符串）来显示文本

比如：

importjava.awt.FlowLayout;

importjava.awt.event.ActionEvent;

importjava.awt.event.ActionListener;

importjava.util.HashMap;

importjava.util.Map;

importjavax.swing.JButton;

importjavax.swing.JFrame;

importjavax.swing.JScrollPane;

importjavax.swing.JTextArea;

/**文本区域

*

*@authorAdministrator

*

*/

{

=2306597749734227012L;

privateJButtonb1=newJButton("AddData"),b2=newJButton("ClearData");

privateJTextAreatext=newJTextArea(20,40);

privateMap<String,String>map=

newHashMap<String,String>();

public迹信TextArea(){

//Useupallthedata:

map.put("a","1");

map.put("b","2");

b1.addActionListener(newActionListener(){

@Override

publicvoidactionPerformed(ActionEvente){

//TODOAuto-generatedmethodstub

for(@SuppressWarnings("rawtypes")Map.Entryme:map.entrySet()){

text.append(me.getKey()+":"+me.getValue()+" ");

}

}

});

b2.addActionListener(newActionListener(){

@Override

publicvoidactionPerformed(ActionEvente){

//TODOAuto-generatedmethodstub

text.setText("");

}

});

setLayout(newFlowLayout());

add(newJScrollPane(text));

add(b1);

add(b2);

租核

}

/**

*@paramargs

*/

publicstaticvoidmain(String[]args){

//TODOAuto-generatedmethodstub

GUItools.SwingConsole.run(newTextArea(),475,475);

}

}

JTextField和这差不多，只不过是显示单行的。

如果要显示其他字体的，可以用HTML格式，如下:

importjava.awt.FlowLayout;

importjava.awt.event.ActionEvent;

importjava.awt.event.ActionListener;

importjavax.swing.JButton;

importjavax.swing.JFrame;

importjavax.swing.JLabel;

/**Swing组件上的HTML

*

*@authorAdministrator

*

*/

@SuppressWarnings("serial")

{

privateJButtonb=newJButton(

"<html><b>姿型轮<fontsize=+2>"+

"<center>Hello!<br><i>Pressmenow!");

//必须使文本以"<html>"标记开始。

publicHTMLButton(){

//TODOAuto-generatedconstructorstub

b.addActionListener(newActionListener(){

@Override

publicvoidactionPerformed(ActionEvente){

//TODOAuto-generatedmethodstub

add(newJLabel("<html>"+"<i><fontsize=+4>Kapow!"));

//Forceare-layouttoincludethenewlabel:

validate();

}

});

setLayout(newFlowLayout());

add(b);

}

/**

*@paramargs

*/

publicstaticvoidmain(String[]args){

//TODOAuto-generatedmethodstub

GUItools.SwingConsole.run(newHTMLButton(),200,500);

}

}

‘伍’ 怎样用java编写图形界面的Application程序

java编写图形界面需要用到swing等组件，可以在eclipse中安装windowbuilder来开发窗体，自动生成窗体代码租碰，然后自己再根据需要修改，如：

package mainFrame;

import java.awt.EventQueue;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JCheckBox;

import javax.swing.JFrame。