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importjava.awt.BorderLayout;importjavax.swing.JPanel;importjavax.swing.JFrame;importjava.awt.Dimension;importjava.awt.GridBagLayout;importjavax.swing.JLabel;importjava.awt.Rectangle;importjavax.swing.ButtonGroup;importjavax.swing.ImageIcon;importjavax.swing.JScrollPane;importjavax.swing.JTable;importjavax.swing.JTextField;importjavax.swing.JTextArea;importjava.awt.ScrollPane;importjavax.swing.JToggleButton;importjavax.swing.JRadioButton;importjava.awt.event.KeyEvent;importjavax.swing.BorderFactory;importjavax.swing.border.BevelBorder;importjavax.swing.border.EtchedBorder;importjava.awt.Point;importjava.sql.*;importjavax.swing.JCheckBox;importjavax.swing.JComboBox;importjavax.swing.JButton;importjavax.swing.JPasswordField;importsrc.DBManager;importsrc.Student;publicclassStudentManageextendsJFrame{privatestaticfinallongserialVersionUID=1L;privateJPanelmainPanel=null;privateJLabellbPic=null;privateJLabellbName=null;privateJLabellbAddress=null;privateJTextFieldtxtName=null;privateJTextAreatxtAddress=null;privateJLabellbSex=null;privateJRadioButtonrbSex1=null;privateJRadioButtonrbSex2=null;privateJPanelgroup=null;privateJCheckBoxckReading=null;privateJLabellbHobby=null;privateJCheckBoxckSing=null;privateJCheckBoxckDance=null;privateJPanelgroupHobby=null;privateJLabellbXueli=null;privateJComboBoxcbXueli=null;privateJButtonbtnOK=null;privateJButtonbtnCancel=null;privateJLabelshow=null;StringBufferhobby=null;staticStringstuInfo=null;privateJButtonbtnUpdate=null;privateJLabellbStuID=null;privateJTextFieldtxtStuID=null;privateJButtonbtnSelect=null;privateJButtonbtnDelete=null;Connectioncon=null;Statementst=null;PreparedStatementps=null;ResultSetrs=null;/***Thisisthedefaultconstructor*/publicStudentManage(){super();initialize();}/***Thismethodinitializesthis**@returnvoid*/privatevoidinitialize(){this.setSize(460,336);this.setContentPane(getMa
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