inputpanel.java

学生信息读系统（根据学生的学号从存储系统读取学生信息）： 姓名

//This class communicate with user for inputing
//student information.;
import javax.swing.JPanel;
import javax.swing.table.TableModel;
import java.awt.TextField;
import java.awt.Label;
import java.awt.Button;
import java.awt.Component;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

public class InputPanel extends JPanel implements ActionListener,KeyListener
{
	Label l=null;
	TextField tf=null;
	Button b1=null;
	InputTable table=null;
	TableModel model=null;
	
	MyStuInfoWriter writer=null;
		
	GridBagLayout la=null;
	GridBagConstraints c=null;
	
	public InputPanel()
	{
		super();
		la=new GridBagLayout();
		c=new GridBagConstraints();
		setLayout(la);
		inital();
	}
	
	public void inital()
	{	
		b1=new Button("提交信息");
		b1.addActionListener(this);
		table=new InputTable();
		c.gridwidth=GridBagConstraints.REMAINDER;
		addCom(table,la,c);
		addCom(b1,la,c);
	}
	
	public void addCom(Component c1,GridBagLayout l,GridBagConstraints c)
	{
		l.setConstraints(c1,c);
		add(c1);
	}
	
	public void actionPerformed(ActionEvent e)
	{
		try
		{
		    model=table.getModel();
		    String stuClass=(String)model.getValueAt(1,0);
		    writer=new MyStuInfoWriter(stuClass);
		    writer.writeInfos(getAllInfos(model));
		    writer.close();
		    remove(table);
		    remove(b1);
		    inital();
		    getParent().setVisible(true);
	    }
	    catch(Exception es)
	    {
	    	
	    }
	}
	
	public void keyPressed(KeyEvent e){}
	public void keyReleased(KeyEvent e){}
	public void keyTyped(KeyEvent e){}
	
	protected String getAllInfos(TableModel model)
	{
		StringBuffer s=new StringBuffer();
	    s.append(getValue(model,1,1)+"/");
		s.append(getValue(model,1,2)+"/");
		s.append(getValue(model,1,3)+"/");
		s.append(getValue(model,1,4)+"/");
		s.append(getValue(model,1,5)+"/");
		s.append(getColumnInfos(model,0));
		s.append(getColumnInfos(model,1));
		s.append(getAllUsualScores(model));
		s.append(getColumnInfos(model,6));
		return s.toString();
	}
	
	private String getColumnInfos(TableModel model,int column)
	{
		StringBuffer buffer=new StringBuffer();
		for(int i=3;i<model.getRowCount();i++)
		{
			String s=(String)model.getValueAt(i,column);
			if(s==null)
			{
				s=new String("0");
			}
			buffer.append(s+"/");
		}
		return buffer.toString();
	}
	
	private String getAllUsualScores(TableModel model)
	{
		StringBuffer buffer=new StringBuffer();
		for(int i=3;i<11;i++)
		{
			buffer.append(getUsualScores(model,i));
		}
		return buffer.toString();
	}
	
	private String getUsualScores(TableModel model,int row)
	{
		int allScores=0;
		int key=0;
		    for(int i=2;i<6;i++)
		    {
			    int k=0;
			    String s=(String)model.getValueAt(row,i);
			    if(s!=null)
			    k=new Integer(s).intValue();
			    allScores+=k;
			    if(k!=0)
			    {
			    	key++;
			    }
		    }
		if(key==0)
		return new String("0"+"/");
		else
		return new Integer((int)(allScores/key)).toString()+"/";
	}
	
	private String getValue(TableModel model,int row,int column)
	{
		String s=(String)model.getValueAt(row,column);
		if(s==null)
		return new String("0");
		else
		return s;
	}
}