java疫情防控小程序源码（小程序疫情防控系统）
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java小程序源代码
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class Test3
{
public static void main(String[] args) throws IOException
{
FileOutputStream output = new FileOutputStream(new File("set.ini"));
output.write(123);
output.close();
FileInputStream input = new FileInputStream(new File("set.ini"));
System.out.println(input.read());
input.close();
}
}
求一java编写的小程序源码，能够运行会追加！
package org.nightrunner.baidu.zhidao;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class QuestionOne {
/**
* 一组序列由AGCT四个字符组成，例如：TAACGAGGAGAAGATTAAAGACAAGAATGATTGAAGGACAGAAAAGGAAAAAAGAAGAGACAATGATGGATAAGGAGGAGGTGGATGACAAGATTAAGGAGGAGGAGAAGAATAAATAGAAGAAGGATTGAAGGAAAGGGAGAAGGAAAAAAGAGGAAGAGGAGAT
* ，要求编一小程序
* 例如：输入一个字符串AAAG,从头开始如果这个字符串在上面的序列，输出：查找成功，并记录位置，没有上面字符串则输出：无法找到，退出
*
* @param args
*/
public static void main(String[] args) {
String data = "TAACGAGGAGAAGATTAAAGACAAGAATGATTGAAGGACAGAAAAGGAAAAAAGAAGAGACAATGATGGATAAGGAGGAGGTGGATGACAAGATTAAGGAGGAGGAGAAGAATAAATAGAAGAAGGATTGAAGGAAAGGGAGAAGGAAAAAAGAGGAAGAGGAGAT";
System.out.println("请输入一个字符串,回车结束");
BufferedReader reader = new BufferedReader(new InputStreamReader(
System.in));
String line = null;
try {
line = reader.readLine();
} catch (IOException e) {
e.printStackTrace();
}
int pos = data.indexOf(line);
if (pos == -1) {
System.out.println("无法找到 退出");
} else {
System.out.println("找到了,在第" + (pos + 1) + "个字符");
}
}
}
java小程序源代码，简单点的，100多行，谁有啊？？
// My car shop.java
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
public class carshop extends JFrame
{
// JPanel to hold all pictures
private JPanel windowJPanel;
private String[] cars = { "","阿斯顿马丁", "美洲虎", "凯迪拉克",
"罗孚", "劳斯莱斯","别克"};
private int[] jiage = { 0,150000, 260000, 230000,
140000, 290000, 150000};
// JLabels for first snack shown
private JLabel oneJLabel;
private JLabel oneIconJLabel;
// JLabels for second snack shown
private JLabel twoJLabel;
private JLabel twoIconJLabel;
// JLabels for third snack shown
private JLabel threeJLabel;
private JLabel threeIconJLabel;
// JLabels for fourth snack shown
private JLabel fourJLabel;
private JLabel fourIconJLabel;
// JLabels for fifth snack shown
private JLabel fiveJLabel;
private JLabel fiveIconJLabel;
// JLabels for sixth snack shown
private JLabel sixJLabel;
private JLabel sixIconJLabel;
// JTextField for displaying snack price
private JTextArea displayJTextArea;
// JLabel and JTextField for user input
private JLabel inputJLabel;
private JComboBox selectCountryJComboBox;
private JLabel inputJLabel2;
private JTextField inputJTextField2;
// JButton to enter user input
private JButton enterJButton;
//JButton to clear the components
private JButton clearJButton;
// no-argument constructor
public carshop()
{
createUserInterface();
}
// create and position GUI components; register event handlers
private void createUserInterface()
{
// get content pane for attaching GUI components
Container contentPane = getContentPane();
// enable explicit positioning of GUI components
contentPane.setLayout( null );
// set up windowJPanel
windowJPanel = new JPanel();
windowJPanel.setBounds( 10, 20, 340, 200 );
windowJPanel.setBorder( new LineBorder( Color.BLACK ) );
windowJPanel.setLayout( null );
contentPane.add( windowJPanel );
// set up oneIconJLabel
oneIconJLabel = new JLabel();
oneIconJLabel.setBounds( 10, 20, 100, 65 );
oneIconJLabel.setIcon( new ImageIcon( "images/阿斯顿马丁.jpg" ) );
windowJPanel.add( oneIconJLabel );
// set up oneJLabel
oneJLabel = new JLabel();
oneJLabel.setBounds( 10, 60, 100, 70 );
oneJLabel.setText( "阿斯顿马丁" );
oneJLabel.setHorizontalAlignment( JLabel.CENTER );
windowJPanel.add( oneJLabel );
// set up twoIconJLabel
twoIconJLabel = new JLabel();
twoIconJLabel.setBounds( 120, 20, 100, 65 );
twoIconJLabel.setIcon( new ImageIcon( "images/美洲虎.jpg" ) );
windowJPanel.add( twoIconJLabel );
// set up twoJLabel
twoJLabel = new JLabel();
twoJLabel.setBounds( 110, 60, 100, 70 );
twoJLabel.setText( "美洲虎" );
twoJLabel.setHorizontalAlignment( JLabel.CENTER );
windowJPanel.add( twoJLabel );
// set up threeIconJLabel
threeIconJLabel = new JLabel();
threeIconJLabel.setBounds( 230, 20, 100, 65 );
threeIconJLabel.setIcon( new ImageIcon(
"images/凯迪拉克.jpg" ) );
windowJPanel.add( threeIconJLabel );
// set up threeJLabel
threeJLabel = new JLabel();
threeJLabel.setBounds( 230, 60, 100, 70);
threeJLabel.setText( "凯迪拉克" );
threeJLabel.setHorizontalAlignment( JLabel.CENTER );
windowJPanel.add( threeJLabel );
// set up fourIconJLabel
fourIconJLabel = new JLabel();
fourIconJLabel.setBounds( 10, 100, 100, 65 );
fourIconJLabel.setIcon( new ImageIcon( "images/罗孚.jpg" ) );
windowJPanel.add( fourIconJLabel );
// set up fourJLabel
fourJLabel = new JLabel();
fourJLabel.setBounds( 10, 150, 50, 70 );
fourJLabel.setText( "罗孚" );
fourJLabel.setHorizontalAlignment( JLabel.CENTER );
windowJPanel.add( fourJLabel );
// set up fiveIconJLabel
fiveIconJLabel = new JLabel();
fiveIconJLabel.setBounds( 120, 100, 100, 65 );
fiveIconJLabel.setIcon( new ImageIcon(
"images/劳斯莱斯.jpg" ) );
windowJPanel.add( fiveIconJLabel );
// set up fiveJLabel
fiveJLabel = new JLabel();
fiveJLabel.setBounds( 110, 150, 100, 70 );
fiveJLabel.setText( "劳斯莱斯" );
fiveJLabel.setHorizontalAlignment( JLabel.CENTER );
windowJPanel.add( fiveJLabel );
// set up sixIconJLabel
sixIconJLabel = new JLabel();
sixIconJLabel.setBounds( 230, 100, 100, 65 );
sixIconJLabel.setIcon( new ImageIcon( "images/别克.jpg" ) );
windowJPanel.add( sixIconJLabel );
// set up sixJLabel
sixJLabel = new JLabel();
sixJLabel.setBounds( 230, 150, 100, 70 );
sixJLabel.setText( "别克" );
sixJLabel.setHorizontalAlignment( JLabel.CENTER );
windowJPanel.add( sixJLabel );
// set up enterJButton
enterJButton = new JButton();
enterJButton.setBounds( 390, 160, 135, 30 );
enterJButton.setText( "Enter" );
contentPane.add( enterJButton );
enterJButton.addActionListener(
new ActionListener() // anonymous inner class
{
// event handler called when enterJButton is clicked
public void actionPerformed( ActionEvent event )
{
enterJButtonActionPerformed( event );
}
} // end anonymous inner class
); // end call to addActionListener
// set up clearJButton
clearJButton = new JButton();
clearJButton.setBounds( 390, 200, 135, 30 );
clearJButton.setText( "Clear" );
contentPane.add( clearJButton );
// set up inputJLabel
inputJLabel = new JLabel();
inputJLabel.setBounds( 390, 25, 135, 25 );
inputJLabel.setText( "Please make selection:" );
contentPane.add( inputJLabel );
selectCountryJComboBox = new JComboBox( cars );
selectCountryJComboBox.setBounds( 390, 50, 135, 21 );
selectCountryJComboBox.setMaximumRowCount( 3 );
contentPane.add( selectCountryJComboBox );
// set up inputJTextField
inputJLabel2 = new JLabel();
inputJLabel2.setBounds( 390, 80, 150, 20 );
inputJLabel2.setText( "Input the Numble:" );
contentPane.add( inputJLabel2 );
// set up inputJTextField
inputJTextField2 = new JTextField();
inputJTextField2.setBounds( 390, 100, 135, 25 );
inputJTextField2.setHorizontalAlignment( JTextField.RIGHT );
contentPane.add( inputJTextField2 );
clearJButton.addActionListener(
new ActionListener() // anonymous inner class
{
// event handler called when clearJButton is clicked
public void actionPerformed( ActionEvent event )
{
clearJButtonActionPerformed( event );
}
} // end anonymous inner class
);
// set up displayJTextField
displayJTextArea = new JTextArea();
displayJTextArea.setBounds( 10, 237,515, 70 );
displayJTextArea.setEditable( false );
contentPane.add( displayJTextArea );
// set properties of application's window
setTitle( "My car Shop" ); // set title bar string
setSize( 550, 360 ); // set window size
setVisible( true ); // display window
} // end method createUserInterface
private void clearJButtonActionPerformed( ActionEvent event )
{
// clear the JTextFields
inputJTextField2.setText( "" );
displayJTextArea.setText("");
} // end method clearJButtonActionPerformed
private void enterJButtonActionPerformed( ActionEvent event )
{
double z;
double c;
int x;
int y;
x=selectCountryJComboBox.getSelectedIndex();
y=Integer.parseInt(inputJTextField2.getText());
double discountRate;
int amount = Integer.parseInt( inputJTextField2.getText());
switch (amount/5)
{
case 0:
discountRate = 0;
break;
case 1:
discountRate = 1;
break;
case 2:
discountRate = 2;
break;
case 3:
discountRate = 3;
break;
default:
discountRate = 4;
} // end switch statement
c=1-discountRate/100;
z=jiage[x]*y*c;
displayJTextArea.append("你选择的是："+cars[x]+"；"+
"它的单价是："+jiage[x]+"；" +"你购买该产品的数量是："+y+"，" +"\n"+"该数量的折扣是："
+discountRate + " %"+"；"+"本次消费的总价格是："+z+"元"+"!"+"\n");
}
public static void main( String args[] )
{
carshop application = new carshop();
application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
} // end method main
} // end class carshop
求一个JAVA小程序的源代码，要求如下
大概是这个样子。
------------------------------------------------------------------------------------------
import java.awt.Graphics;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class DateCheck extends JFrame implements ActionListener {
private boolean isOval = true;
public DateCheck() {
setSize(567, 419);
setResizable(false);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setLocationRelativeTo(null);
getContentPane().setLayout(null);
JButton btnNewButton = new JButton("Oval");
btnNewButton.addActionListener(this);
btnNewButton.setBounds(80, 10, 93, 23);
getContentPane().add(btnNewButton);
JButton btnNewButton_1 = new JButton("Rect");
btnNewButton_1.setBounds(203, 10, 93, 23);
btnNewButton_1.addActionListener(this);
getContentPane().add(btnNewButton_1);
JPanel panel = new MyPanel();
panel.setBounds(12, 47, 537, 337);
getContentPane().add(panel);
new Timer().schedule(new MyTimesk(), new Date(), 100);
setVisible(true);
}
public static void main(String[] args) {
new DateCheck();
}
public void actionPerformed(ActionEvent event) {
isOval = "Oval".equals(event.getActionCommand());
System.out.println(isOval);
}
class MyPanel extends JPanel implements MouseListener {
Point point1 = null;
Point point2 = null;
// protected void paintComponent(Graphics g) {
// super.paintComponent(g);
//
// }
int click = 0;
public MyPanel() {
addMouseListener(this);
}
public void paint(Graphics g) {
super.paint(g);
Point p = this.getMousePosition();
if (p == null click % 2 == 1) {
return;
}
if (click % 2 == 0 (point1 == null || point2 == null)) {
return;
}
if (click % 2 == 0) {
if (isOval) {
int w = point2.x - point1.x;
int h = point2.y - point1.y;
int r = (int) Math.sqrt(w * w + h * h);
g.drawOval(point1.x - r / 2, point1.y - r / 2, r + r / 2, r
+ r / 2);
} else {
g.drawRect(point1.x, point1.y, point2.x - point1.x,
point2.y - point1.y);
}
return;
}
if (isOval) {
if (click % 2 == 1) {
int w = p.x - point1.x;
int h = p.y - point1.y;
int r = (int) Math.sqrt(w * w + h * h);
g.drawOval(point1.x - r / 2, point1.y - r / 2, r + r / 2, r
+ r / 2);
}
} else {
g.drawRect(point1.x, point1.y, p.x - point1.x, p.y - point1.y);
}
}
public void mouseClicked(MouseEvent mouseevent) {
click++;
if (click % 2 == 1) {
point1 = mouseevent.getPoint();
} else {
point2 = mouseevent.getPoint();
}
}
public void mouseEntered(MouseEvent mouseevent) {
}
public void mouseExited(MouseEvent mouseevent) {
}
public void mousePressed(MouseEvent mouseevent) {
}
public void mouseReleased(MouseEvent mouseevent) {
}
}
class MyTimesk extends TimerTask {
public void run() {
repaint();
}
}
}
