informationsystem.java

学生成绩修改编辑查询功能界面 此程式是个简单的成绩编辑器 可供读者使用来录入

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

public class InformationSystem extends JFrame
{
 	private JTabbedPane RecordPanel;
 	private JPanel contentPane;

 	private JLabel IDLabel;
 	private JLabel NameLabel;
 	private JLabel MarksLabel;
 	private JLabel GradeLabel;
 	private JTextField IDText;
 	private JTextField NameText;
 	private JTextField MarksText;
 	private JTextField GradeText;
 	private JButton ClearBTN;
 	private JButton SaveBTN;

 	private JLabel IDLabel_UN;
 	private JLabel NameLabel_UN;
 	private JLabel MarksLabel_UN;
 	private JLabel GradeLabel_UN;
 	private JTextField IDText_UN;
 	private JTextField NameText_UN;
 	private JTextField MarksText_UN;
 	private JTextField GradeText_UN;
 	private JButton PreviousBTN;
 	private JButton NextBTN;

 	private JTextField SearchText;
 	private JComboBox TypeCombo;
 	private JButton SearchBTN;
 	private JLabel ResultLabel;

 	private JPanel RecordDataPanel;
 	private JPanel ViewDataPanel;
 	private JPanel SearchDataPanel;

	String location = "1";
	String arrayData[][] = new String[1][3];
	String tempData[][] = new String[1][3];
	int searchArrayLocation[];
	int temp_location;

 	public InformationSystem()
 	{
 		super();
 		initializeComponent();
 		this.setVisible(true);
 	}

 	private void initializeComponent()
 	{
 		RecordPanel = new JTabbedPane();
 		contentPane = (JPanel)this.getContentPane();
 		IDLabel = new JLabel();
 		NameLabel = new JLabel();
 		MarksLabel = new JLabel();
 		GradeLabel = new JLabel();
 		IDText = new JTextField();
 		NameText = new JTextField();
 		MarksText = new JTextField();
 		GradeText = new JTextField();
 		ClearBTN = new JButton();
 		SaveBTN = new JButton();

 		IDLabel_UN = new JLabel();
 		NameLabel_UN = new JLabel();
 		MarksLabel_UN = new JLabel();
 		GradeLabel_UN = new JLabel();
 		IDText_UN = new JTextField();
 		NameText_UN = new JTextField();
 		MarksText_UN = new JTextField();
 		GradeText_UN = new JTextField();
 		PreviousBTN = new JButton();
 		NextBTN = new JButton();

 		SearchText = new JTextField();
 		TypeCombo = new JComboBox();
 		SearchBTN = new JButton();
 		ResultLabel = new JLabel();

 		RecordDataPanel = new JPanel();
 		ViewDataPanel = new JPanel();
 		SearchDataPanel = new JPanel();


 		RecordPanel.addTab("Record Data", RecordDataPanel);
 		RecordPanel.addTab("View Data", ViewDataPanel);
 		RecordPanel.addTab("Search Data", SearchDataPanel);
 		RecordPanel.setTabPlacement(JTabbedPane.LEFT);

 		contentPane.setLayout(null);
 		addComponent(contentPane, RecordPanel, 10,10,315,155);

 		IDLabel.setText("ID");
 		IDLabel.setPreferredSize(new Dimension(40, 15));
 		IDText.setPreferredSize(new Dimension(150, 22));
		IDText.setText(location);

 		NameLabel.setText("Name");
 		NameLabel.setPreferredSize(new Dimension(40, 15));
 		NameText.setPreferredSize(new Dimension(150, 22));

 		MarksLabel.setText("Marks");
 		MarksLabel.setPreferredSize(new Dimension(40, 15));
		MarksText.setPreferredSize(new Dimension(150, 22));
 		MarksText.addKeyListener(new KeyAdapter() {
			public void keyReleased(KeyEvent e)
			{
				MarksText_keyReleased(e);
			}
		});

 		GradeLabel.setText("Grade");
 		GradeLabel.setPreferredSize(new Dimension(40, 15));
 		GradeText.setPreferredSize(new Dimension(150, 22));

 		IDText.setEditable(false);
 		GradeText.setEditable(false);

 		IDLabel_UN.setText("ID");
 		IDText_UN.setEditable(false);
 		IDLabel_UN.setPreferredSize(new Dimension(40, 15));
 		IDText_UN.setPreferredSize(new Dimension(150, 22));
		IDText_UN.setText(location);

 		NameLabel_UN.setText("Name");
 		NameText_UN.setEditable(false);
 		NameLabel_UN.setPreferredSize(new Dimension(40, 15));
 		NameText_UN.setPreferredSize(new Dimension(150, 22));

 		MarksLabel_UN.setText("Marks");
 		MarksText_UN.setEditable(false);
 		MarksLabel_UN.setPreferredSize(new Dimension(40, 15));
		MarksText_UN.setPreferredSize(new Dimension(150, 22));

 		GradeLabel_UN.setText("Grade");
 		GradeText_UN.setEditable(false);
 		GradeLabel_UN.setPreferredSize(new Dimension(40, 15));
 		GradeText_UN.setPreferredSize(new Dimension(150, 22));

		ResultLabel.setHorizontalAlignment(SwingConstants.CENTER);
		ResultLabel.setText("No Result");
		ResultLabel.setPreferredSize(new Dimension(150, 15));

 		ClearBTN.setText("Clear");
 		ClearBTN.setPreferredSize(new Dimension(80, 30));
 		ClearBTN.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e)
 			{
 				ClearBTN_actionPerformed(e);
 			}

 		});

 		SaveBTN.setText("Save");
 		SaveBTN.setPreferredSize(new Dimension(80, 30));
 		SaveBTN.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e)
 			{
 				SaveBTN_actionPerformed(e);
 			}

 		});

 		PreviousBTN.setText("Previous");
 		PreviousBTN.setPreferredSize(new Dimension(90, 30));
 		PreviousBTN.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e)
 			{
 				PreviousBTN_actionPerformed(e);
 			}

 		});

 		NextBTN.setText("Next");
 		NextBTN.setPreferredSize(new Dimension(90, 30));
 		NextBTN.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e)
 			{
 				NextBTN_actionPerformed(e);
 			}

 		});

 		TypeCombo.addItem("Name (Case Sensitive)");
 		TypeCombo.addItem("Marks");
 		TypeCombo.addItem("Grade (Case Sensitive)");
 		TypeCombo.setMaximumRowCount(3);
 		TypeCombo.setPreferredSize(new Dimension(160, 22));

 		SearchText.setPreferredSize(new Dimension(160, 22));

 		SearchBTN.setText("Search");
 		SearchBTN.setPreferredSize(new Dimension(90, 30));
 		SearchBTN.addActionListener(new ActionListener() {
 			public void actionPerformed(ActionEvent e)
 			{
 				SearchBTN_actionPerformed(e);
 			}

 		});

 		RecordDataPanel.setLayout(new FlowLayout(FlowLayout.CENTER, 5, 5));
 		RecordDataPanel.add(IDLabel, 0);
 		RecordDataPanel.add(IDText, 1);
 		RecordDataPanel.add(NameLabel, 2);
 		RecordDataPanel.add(NameText, 3);
 		RecordDataPanel.add(MarksLabel, 4);
 		RecordDataPanel.add(MarksText, 5);
 		RecordDataPanel.add(GradeLabel, 6);
 		RecordDataPanel.add(GradeText, 7);
 		RecordDataPanel.add(ClearBTN, 8);
 		RecordDataPanel.add(SaveBTN, 9);

 		ViewDataPanel.setLayout(new FlowLayout(FlowLayout.CENTER, 5, 5));
 		ViewDataPanel.add(IDLabel_UN, 0);
 		ViewDataPanel.add(IDText_UN, 1);
 		ViewDataPanel.add(NameLabel_UN, 2);
 		ViewDataPanel.add(NameText_UN, 3);
 		ViewDataPanel.add(MarksLabel_UN, 4);
 		ViewDataPanel.add(MarksText_UN, 5);
 		ViewDataPanel.add(GradeLabel_UN, 6);
 		ViewDataPanel.add(GradeText_UN, 7);
 		ViewDataPanel.add(PreviousBTN, 8);
 		ViewDataPanel.add(NextBTN, 9);

 		SearchDataPanel.setLayout(new FlowLayout(FlowLayout.CENTER, 5, 5));
 		SearchDataPanel.add(TypeCombo, 0);
 		SearchDataPanel.add(SearchText, 1);
 		SearchDataPanel.add(SearchBTN, 2);
 		SearchDataPanel.add(ResultLabel, 3);

 		this.setTitle("Information System");
 		this.setLocation(new Point(0, 0));
 		this.setSize(new Dimension(340, 200));
 		this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
 	}

 	private void addComponent(Container container,Component c,int x,int y,int width,int height)
 	{
 		c.setBounds(x,y,width,height);
 		container.add(c);
 	}

 	private void MarksText_keyReleased(KeyEvent e)
 	{
		try
		{
			int mark_int = Integer.parseInt(MarksText.getText());
			if ( mark_int <= 100 && mark_int >= 70)