我如何创建一个婴儿使代码串重复

时间:2015-06-07 19:30:30

标签: c# c#-4.0 for-loop c#-3.0 infinite-loop

我想要一个代码字符串,每隔5秒就会重复一次,并使用一个切换来关闭和打开五秒循环。

private void button3_Click(object sender, EventArgs e)
    {
        Game.SetVariable("_root.copter.health", textBox3.Text);
    }

我完全坚持这个请求帮助

1 个答案:

答案 0 :(得分:1)

你可以用它。

import javax.swing.*;



import java.util.Vector;
import java.sql.*;
import java.awt.event.*; 
import java.awt.*;
import java.io.*;
import java.awt.image.*;
import javax.imageio.ImageIO;



public class Student_Database extends JFrame implements ActionListener {


private JTextField textfield, tf1, tf2, tf3, tf4, tf5, tf6, tf7, tf8, tf9, tf10, tf11, tf12, tf13, tf14,tf15;
private JLabel label,l1,l2,l3,l4,l5,l6,l7,l8,l9,l10,l11,l12,l13,l14,l15, l16, frame_imagelabel;
private JButton button, button2;
private ImageIcon frame_image, icon, icon1;
private Image img, myimg;   

public Student_Database() {


    setTitle("Student Information");



    label= new JLabel("Enter Roll Number: ");
    label.setForeground(Color.white);
    label.setFont(new Font("Serif", Font.BOLD, 18));
    label.setBounds(200,30,160,20);
    textfield= new JTextField(6);
    textfield.setBounds(370, 30, 100, 20);
    button= new JButton ("OK");
    button.setBounds(480, 30, 80, 20);

    add(label);
    add(textfield);
    add(button);


    button2=new JButton("CLICK for Main Menu");//creating instance of JButton  
    button2.setBounds(5,10,160,40);//x axis, y axis, width, height  
    add(button2);//adding button in JFrame 
    button2.setBackground(Color.white);
    button2.setForeground(Color.black);
    button2.addActionListener(this);



    button.addActionListener(this);


    frame_image= new ImageIcon ("F:/Java_program/Hostel_Management/Resource/images (1).jpg");
    frame_imagelabel= new JLabel(frame_image);
    frame_imagelabel.setBounds(0,0,1000, 700);
    add(frame_imagelabel);



    setSize(1000,700);//400 width and 600 height  
    setLayout(new BorderLayout());//using no layout managers  
    //getContentPane().setBackground(Color.white);  
    //pack();
    //revalidate();
    setVisible(true);//making the frame visible 

}

public void actionPerformed(ActionEvent e)
{

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

    l1= new JLabel("Name: ");
    l1.setForeground(Color.white);
    l1.setFont(new Font("Serif", Font.BOLD, 15));
    l1.setBounds(100,100,150,20);
    //l1.setLabelFor(tf1);

    l2= new JLabel("Mobile Number: ");
    l2.setForeground(Color.white);
    l2.setFont(new Font("Serif", Font.BOLD, 15));
    l2.setBounds(100,150,150,20);
    //l1.setLabelFor(tf2);

    l3= new JLabel("Father's Name: ");
    l3.setForeground(Color.white);
    l3.setFont(new Font("Serif", Font.BOLD, 15));
    l3.setBounds(100,200,150,20);

    l4= new JLabel("Mobile Number: ");
    l4.setForeground(Color.white);
    l4.setFont(new Font("Serif", Font.BOLD, 15));
    l4.setBounds(100,250,150,20);

    l5= new JLabel("Mother's Name: ");
    l5.setForeground(Color.white);
    l5.setFont(new Font("Serif", Font.BOLD, 15));
    l5.setBounds(100,300,150,20);

    l6= new JLabel("Mobile Number: ");
    l6.setForeground(Color.white);
    l6.setFont(new Font("Serif", Font.BOLD, 15));
    l6.setBounds(100,350,150,20);

    l7= new JLabel("Village: ");
    l7.setForeground(Color.white);
    l7.setFont(new Font("Serif", Font.BOLD, 15));
    l7.setBounds(100,400,150,20);

    l8= new JLabel("Police Station: ");
    l8.setForeground(Color.white);
    l8.setFont(new Font("Serif", Font.BOLD, 15));
    l8.setBounds(100,450,150,20);

    l9= new JLabel("District: ");
    l9.setForeground(Color.white);
    l9.setFont(new Font("Serif", Font.BOLD, 15));
    l9.setBounds(100,500,150,20);

    l10= new JLabel("Blood Group: ");
    l10.setForeground(Color.white);
    l10.setFont(new Font("Serif", Font.BOLD, 15));
    l10.setBounds(100,550,150,20);

    l11= new JLabel("Department: ");
    l11.setForeground(Color.white);
    l11.setFont(new Font("Serif", Font.BOLD, 15));
    l11.setBounds(600,100,150,20);

    l12= new JLabel("Series: ");
    l12.setForeground(Color.white);
    l12.setFont(new Font("Serif", Font.BOLD, 15));
    l12.setBounds(600,150,150,20);

    l13= new JLabel("Roll Number: ");
    l13.setForeground(Color.white);
    l13.setFont(new Font("Serif", Font.BOLD, 15));
    l13.setBounds(600,200,150,20);

    l14= new JLabel("CGPA: ");
    l14.setForeground(Color.white);
    l14.setFont(new Font("Serif", Font.BOLD, 15));
    l14.setBounds(600,250,150,20);

    l15= new JLabel("Room Number: ");
    l15.setForeground(Color.white);
    l15.setFont(new Font("Serif", Font.BOLD, 15));
    l15.setBounds(600,300,150,20);





    tf1= new JTextField();
    tf1.setBounds(300,100,200,20);

    tf2= new JTextField();
    tf2.setBounds(300,150,200,20);

    tf3= new JTextField();
    tf3.setBounds(300,200,200,20);

    tf4= new JTextField();
    tf4.setBounds(300,250,200,20);

    tf5= new JTextField();
    tf5.setBounds(300,300,200,20);

    tf6= new JTextField();
    tf6.setBounds(300,350,200,20);

    tf7= new JTextField();
    tf7.setBounds(300,400,200,20);

    tf8= new JTextField();
    tf8.setBounds(300,450,200,20);

    tf9= new JTextField();
    tf9.setBounds(300,500,200,20);

    tf10= new JTextField();
    tf10.setBounds(300,550,200,20);

    tf11= new JTextField();
    tf11.setBounds(710,100,200,20);

    tf12= new JTextField();
    tf12.setBounds(710,150,200,20);

    tf13= new JTextField();
    tf13.setBounds(710,200,200,20);

    tf14= new JTextField();
    tf14.setBounds(710,250,200,20);

    tf15= new JTextField();
    tf15.setBounds(710,300,200,20);



    tf1.setEditable(false);
    tf2.setEditable(false);
    tf3.setEditable(false);

    tf4.setEditable(false);
    tf5.setEditable(false);
    tf6.setEditable(false);

    tf7.setEditable(false);
    tf8.setEditable(false);
    tf9.setEditable(false);

    tf10.setEditable(false);
    tf11.setEditable(false);
    tf12.setEditable(false);

    tf13.setEditable(false);
    tf14.setEditable(false);
    tf15.setEditable(false);






    try {  

        Class.forName("com.mysql.jdbc.Driver");  

        Connection con=DriverManager.getConnection(  
        "jdbc:mysql://localhost:3306/hostel_management","root","");  

        //here project is database name, root is username and password is empty 

        Statement stmt=con.createStatement();  

        ResultSet rs=stmt.executeQuery("select * from student_info where roll_no = '" + textfield.getText() + "'");  

        //if(rs.next()=null)
            //JOptionPane.showMessageDialog(null, "No Available Seat. Please Select Another Room.", "Warning", JOptionPane.ERROR_MESSAGE);
        int count= 0;










        while(rs.next())  
        {

             count++;


             tf1.setText(rs.getString(1));
             tf1.setHorizontalAlignment(JTextField.CENTER);

             tf2.setText(rs.getString(2));
             tf2.setHorizontalAlignment(JTextField.CENTER);

             tf3.setText(rs.getString(3));
             tf3.setHorizontalAlignment(JTextField.CENTER);

             tf4.setText(rs.getString(4));
             tf4.setHorizontalAlignment(JTextField.CENTER);

             tf5.setText(rs.getString(5));
             tf5.setHorizontalAlignment(JTextField.CENTER);

             tf6.setText(rs.getString(6));
             tf6.setHorizontalAlignment(JTextField.CENTER);

             tf7.setText(rs.getString(7));
             tf7.setHorizontalAlignment(JTextField.CENTER);

             tf8.setText(rs.getString(8));
             tf8.setHorizontalAlignment(JTextField.CENTER);

             tf9.setText(rs.getString(9));
             tf9.setHorizontalAlignment(JTextField.CENTER);

             tf10.setText(rs.getString(10));
             tf10.setHorizontalAlignment(JTextField.CENTER);

             tf11.setText(rs.getString(11));
             tf11.setHorizontalAlignment(JTextField.CENTER);

             tf12.setText(rs.getString(12));
             tf12.setHorizontalAlignment(JTextField.CENTER);

             tf13.setText(rs.getString(13));
             tf13.setHorizontalAlignment(JTextField.CENTER);

             tf14.setText(rs.getString(14));
             tf14.setHorizontalAlignment(JTextField.CENTER);

             tf15.setText(rs.getString(15));
             tf15.setHorizontalAlignment(JTextField.CENTER);



             Blob blob = rs.getBlob("image");
             int blobLength = (int) blob.length();  

             byte[] bytes = blob.getBytes(1, blobLength);
            //blob.free();
             BufferedImage image = ImageIO.read(new ByteArrayInputStream(bytes));

             ImageIcon icon = new ImageIcon(bytes); // you can read straight from byte array
             l16 = new JLabel(icon);
             l16.setBounds(100, 100, 100, 50);
             add(l16);



             //add(frame_imagelabel);
              add(l1);
              add(tf1);
              add(l2);
              add(tf2);
              add(l3);
              add(tf3);
              add(l4);
              add(tf4);
              add(l5);
              add(tf5);
              add(l6);
              add(tf6);
              add(l7);
              add(tf7);
              add(l8);
              add(tf8);
              add(l9);
              add(tf9);
              add(l10);
              add(tf10);
              add(l11);
              add(tf11);
              add(l12);
              add(tf12);
              add(l13);
              add(tf13);
              add(l14);
              add(tf14);
              add(l15);
              add(tf15);



              add(frame_imagelabel);
              pack();
              setSize(1000,700);


        }


        //if(im!=null)
        //JOptionPane.showMessageDialog(null, "No image", "Warning", JOptionPane.ERROR_MESSAGE);


        if(count==0)
            JOptionPane.showMessageDialog(null, "This Student is not a member of this hall.", "Warning", JOptionPane.ERROR_MESSAGE);


        con.close();  

        } catch(Exception ex){ JOptionPane.showMessageDialog(null, ex, "Error", JOptionPane.ERROR_MESSAGE); }  


    }





if(e.getSource()==button2)
{
    project obj =new project();
    dispose();
}

}
}