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}); } }
import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException import javax.swing.JButton; import javax.swing.JLabel;
import javax.swing.JOptionPane; import javax.swing.JTextField; public class xiugai { PreparedStatement ps; ResultSet rs ; public xiugai() {
final ShowFlowLayout frame = new ShowFlowLayout();
JLabel jlblÇëÊäÈëÄãÒªÐÞ¸ÄÈ˵ÄÐÕÃû = new JLabel(\ÇëÊäÈëÄãÒªÐÞ¸ÄÈ˵ÄÐÕÃû\
frame.add(jlblÇëÊäÈëÄãÒªÐÞ¸ÄÈ˵ÄÐÕÃû);
final JTextField jtfÇëÊäÈëÄãÒªÐÞ¸ÄÈ˵ÄÐÕÃû = new JTextField(20);
frame.add(jtfÇëÊäÈëÄãÒªÐÞ¸ÄÈ˵ÄÐÕÃû);
JButton jbtÈ·¶¨ = new JButton(\È·¶¨ \ frame.add(jbtÈ·¶¨);
JButton jbt·µ»Ø = new JButton(\·µ»Ø \ frame.add(jbt·µ»Ø);
frame.setTitle(\ͨѶ¼Êý¾Ý¿âϵͳ \ frame.setLocation(500,200); frame.setSize(270, 250); frame.setVisible(true);
jbtÈ·¶¨.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { ps = ShowFlowLayout.con
.prepareStatement(\ ps.setString(1,jtfÇëÊäÈëÄãÒªÐÞ¸ÄÈ˵ÄÐÕÃû.getText()); rs=ps.executeQuery() ; if(!rs.next()) JOptionPane.showMessageDialog(null,\´ËÈ˲»´æÔÚ£¡\
else { ps = ShowFlowLayout.con
.prepareStatement(\from friend where name=?\ ps.setString(1, jtfÇëÊäÈëÄãÒªÐÞ¸ÄÈ˵ÄÐÕÃû.getText()); ps.executeUpdate();
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new TestSwingCommonFeatures(); }
} catch (SQLException e2) {
// TODO Auto-generated catch block e2.printStackTrace(); } }
});
jbt·µ»Ø.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { frame.dispose(); } }); } }
import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel;
import javax.swing.JOptionPane; import javax.swing.JTextField;
public class shanchu extends JFrame { PreparedStatement ps; ResultSet rs ;
public shanchu() {
final ShowFlowLayout frame = new ShowFlowLayout();
JLabel jlblÇëÊäÈëÄãҪɾ³ýÈ˵ÄÐÕÃû = new JLabel(\ÇëÊäÈëÄãҪɾ³ýÈ˵ÄÐÕÃû\
frame.add(jlblÇëÊäÈëÄãҪɾ³ýÈ˵ÄÐÕÃû);
final JTextField jtfÇëÊäÈëÄãҪɾ³ýÈ˵ÄÐÕÃû = new JTextField(20);
frame.add(jtfÇëÊäÈëÄãҪɾ³ýÈ˵ÄÐÕÃû);
JButton jbtÈ·¶¨ = new JButton(\È·¶¨ \ frame.add(jbtÈ·¶¨);
JButton jbt·µ»Ø = new JButton(\·µ»Ø \ frame.add(jbt·µ»Ø);
frame.setTitle(\ͨѶ¼Êý¾Ý¿âϵͳ \ frame.setLocation(500,200); frame.setSize(270, 250);
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frame.setVisible(true);
jbtÈ·¶¨.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { ps = ShowFlowLayout.con
.prepareStatement(\ ps.setString(1,jtfÇëÊäÈëÄãҪɾ³ýÈ˵ÄÐÕÃû.getText()); rs=ps.executeQuery() ; if(!rs.next()) JOptionPane.showMessageDialog(null,\´ËÈ˲»´æÔÚ£¡\
else { ps = ShowFlowLayout.con
.prepareStatement(\from friend where name=?\
ps.setString(1, jtfÇëÊäÈëÄãҪɾ³ýÈ˵ÄÐÕÃû.getText()); ps.executeUpdate();
JOptionPane.showMessageDialog(null,\ɾ³ý³É¹¦£¡\ frame.dispose(); } } catch (SQLException e2) {
// TODO Auto-generated catch block e2.printStackTrace(); } }
});
jbt·µ»Ø.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { frame.dispose(); } }); } }
import javax.swing.JButton; import javax.swing.JLabel;
public class shuanchuchenggong {
public static void main(String[] args) {
ShowFlowLayout frame = new ShowFlowLayout();
JLabel jlblɾ³ý³É¹¦= new JLabel(\ɾ³ý³É¹¦ £¡ \
frame.add(jlblɾ³ý³É¹¦);
JButton jbtÈ·¶¨ = new JButton(\È·¶¨ \ frame.add(jbtÈ·¶¨);
JButton jbtÈ¡Ïû = new JButton(\È¡Ïû \ frame.add(jbtÈ¡Ïû);
frame.setTitle(\ͨѶ¼Êý¾Ý¿âϵͳ \
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