graph.java

This is source rmi with java

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

public class graph extends JFrame implements ActionListener
{
	private Container cp;
	private JButton draw,cancel,run,back,forward,remove,exit;JLabel lbl;
	private JTextField tfx1,tfx2;JTable table;
	private ScrollPane pn;JScrollPane pTable;draw d;
	private JComboBox coFunc,coHistory;
	private textAlysis ts;

	private String[][] strCoff={{"Coefficient  A",""},{"Coefficient  B",""},
	           {"Coefficient  C",""},{"Coefficient  D",""},
	            {"Coefficient  E",""}};
	private String tableTitle[]={"Coefficient","Value"};

	private int numberFunc=1,numbers=2,intHistory=0;
	private Vector history=new Vector();

	public graph()
	{
		super("Draw graph");
		cp=getContentPane();cp.setBackground(Color.darkGray);
		cp.setLayout(null);

        lbl=new JLabel("Draw Graphs");
		lbl.setBounds(100,2,250,50);
		lbl.setFont(new Font("TimesRoman",Font.BOLD,30));
	    lbl.setForeground(new Color(14,215,125));cp.add(lbl);

	    lbl=new JLabel("[e-mail]");
		lbl.setBounds(10,70,250,20);
		lbl.setFont(new Font("TimesRoman",Font.BOLD,18));
	    lbl.setForeground(new Color(14,177,233));cp.add(lbl);

	    lbl=new JLabel("Enter underbound(x1):");
	    lbl.setBounds(20,320,130,20);
	    lbl.setForeground(new Color(145,255,154));cp.add(lbl);
	    tfx1=new JTextField();tfx1.setText("0");
	    tfx1.setBounds(150,320,50,20);cp.add(tfx1);

	    lbl=new JLabel("Enter upperbound(x2):");
		lbl.setBounds(20,350,130,20);
		lbl.setForeground(new Color(145,255,154));cp.add(lbl);
		tfx2=new JTextField();tfx2.setText("0");
	    tfx2.setBounds(150,350,50,20);cp.add(tfx2);

	    draw=new JButton("Draw Graph");
	    draw.addActionListener(this);
	    draw.setBackground(new Color(127,122,213));
	    draw.setForeground(Color.green);
	    draw.setBounds(300,500,120,20);cp.add(draw);

	    cancel=new JButton("Cancel");
		cancel.addActionListener(this);
		cancel.setBackground(new Color(127,122,213));
		cancel.setForeground(Color.green);
	    cancel.setBounds(430,500,120,20);cp.add(cancel);

	    run=new JButton("Stop Text");
		run.addActionListener(this);
		run.setBackground(new Color(127,122,213));
		run.setForeground(Color.green);
	    run.setBounds(560,500,120,20);cp.add(run);

	    back=new JButton("Back");
		back.addActionListener(this);
		back.setBackground(new Color(127,122,213));
		back.setForeground(Color.green);
	    back.setBounds(20,450,100,20);cp.add(back);

	    forward=new JButton("Forward");
		forward.addActionListener(this);
		forward.setBackground(new Color(127,122,213));
		forward.setForeground(Color.green);
	    forward.setBounds(130,450,100,20);cp.add(forward);

	    remove=new JButton("Remove");
		remove.addActionListener(this);
		remove.setBackground(new Color(127,122,213));
		remove.setForeground(Color.green);
	    remove.setBounds(20,480,100,20);cp.add(remove);

	    exit=new JButton("Exit");
		exit.addActionListener(this);
		exit.setBackground(new Color(127,122,213));
		exit.setForeground(Color.green);
	    exit.setBounds(130,480,100,20);cp.add(exit);

	    pn=new ScrollPane();
	    pn.setBounds(250,110,530,370);
        d=new draw();
		pn.add(d);cp.add(pn);

		lbl=new JLabel("Enter Coefficient:");
		lbl.setBounds(10,180,250,20);
	    lbl.setForeground(new Color(177,125,225));cp.add(lbl);
		pTable=new JScrollPane();
		pTable.setBounds(30,200,200,100);cp.add(pTable);

		ts=new textAlysis();
		ts.setBounds(330,10,420,85);cp.add(ts);

		createCoff(2);createFunction();createCoHistory();

		this.addWindowListener(new WindowAdapter()
		  {
			  public void windowClosing(WindowEvent evt){System.exit(0);}
		  });
	}
  public void actionPerformed(ActionEvent evt)
    {
		String str=evt.getActionCommand();
		if(evt.getSource()==draw){paintGraph();}
	    if(evt.getSource()==cancel)	{cancel();}
	    if(str.equals("Stop Text"))
		  {run.setText("Run Text");	ts.stop(); }
	    if(str.equals("Run Text"))
		  {ts.setBackground(Color.black);
			run.setText("Stop Text");ts.start();}
	    if(evt.getSource()==back){back(true);}
	    if(evt.getSource()==forward){forward();}
	    if(evt.getSource()==remove){remove();}
	    if(evt.getSource()==exit){System.exit(0);}
    }
    //tao danh sach cac he so can nhap
  public void createCoff(int numberCurrent)
   {
	   this.numbers=numberCurrent;
	   String currentCoff[][]=new String[numbers][2];
	   for(int i=0;i<numbers;i++)
	   {
		   for(int j=0;j<2;j++)
		    {currentCoff[i][j]=strCoff[i][j];}
	   }
	   table=new JTable(currentCoff,tableTitle);
	   table.setForeground(new Color(0,36,92));
	   table.setBackground(new Color(227,255,243));
	   table.setSelectionBackground(Color.darkGray);
	   table.setSelectionForeground(Color.green);
	   pTable.setViewportView(table);
   }
  //tao danh sach cac ham
  public void createFunction()
   {
        String strFunc[]=d.getNameFunc();
        coFunc=new JComboBox(strFunc);
        coFunc.setBounds(10,150,230,20);
        coFunc.setBackground(new Color(24,88,213));
        coFunc.setForeground(Color.yellow);
        coFunc.addItemListener(new ItemListener()
           {
			   public void itemStateChanged(ItemEvent evt)
			   {
                    numberFunc=coFunc.getSelectedIndex()+1;
                    createCoff(d.getNumberCoff(numberFunc));
			   }
           });
       lbl=new JLabel("Select Function:");
       lbl.setBounds(10,130,100,20);
	   lbl.setForeground(new Color(135,240,240));
	   cp.add(coFunc);cp.add(lbl);
   }
   //tao danh sach cac ham da ve
 public void createCoHistory()
   {
        coHistory=new JComboBox();
        coHistory.setBounds(10,410,230,20);
        coHistory.setBackground(new Color(22,182,23));
        coHistory.setForeground(Color.yellow);
        coHistory.addItemListener(new ItemListener()
           {
			   public void itemStateChanged(ItemEvent evt)
			   {
                 intHistory=coHistory.getSelectedIndex()+1;
                 back(false);
			   }
           });
       lbl=new JLabel("Functions were drawn:");
       lbl.setBounds(10,380,200,20);
	   lbl.setForeground(new Color(140,245,20));
	   cp.add(coHistory);cp.add(lbl);

   }
   //ve chuong trinh
  public void paintGraph()
   {
	   table.setDragEnabled(false);table.selectAll();
	   Double heSo[]=new Double[numbers];double com[]=new double[numbers];
	   for(int i=0;i<numbers;i++)
	   {
		 try
		  {
	       heSo[i]=new Double(String.valueOf(table.getValueAt(i,1)));
	       com[i]=heSo[i].doubleValue();
	      }
	     catch(Exception e)
	      {
			 heSo[i]=new Double("0");com[i]=heSo[i].doubleValue();
			 table.setValueAt("0",i,1);
		  }
	   }
	   try
	   {
	     Double x1=new Double(tfx1.getText());
	     Double x2=new Double(tfx2.getText());
	     if(check(x1.doubleValue(),x2.doubleValue()))
	     {
	       d.calculate(numberFunc,com,x1.doubleValue(),x2.doubleValue());
	       int numberFuncCurrent=coFunc.getSelectedIndex();
	       history(numberFuncCurrent,com,x1.doubleValue(),x2.doubleValue());
	     }
	   }catch(Exception e)
	   {
		   System.out.println("loi tai day ne"+e);
		   tfx1.setText("0");tfx2.setText("0");
	   }
	   table.setDragEnabled(true);
   }
  public void history(int numberFunc,double com[],double x1,double x2)
   {
	    String value=" ";boolean check=false;
	    value+=String.valueOf(x1)+" ";
	    value+=String.valueOf(x2)+" ";
	    value+=String.valueOf(numberFunc)+" ";
	    for(int i=0;i<com.length;i++)
	      {value+=String.valueOf(com[i])+" ";}
	    for(int i=0;i<history.size();i++)
	     {
		   if(value.equals(String.valueOf(history.elementAt(i))))
		      {check=true;}
		 }
	    if(!check)
	      {
			 history.addElement(value);
			 coHistory.addItem(replaceStr(numberFunc,com,x1,x2));
			 intHistory=history.size();
			 coHistory.setSelectedIndex(intHistory-1);
			 back.setEnabled(true);forward.setEnabled(false);
		  }
   }
  public void remove()
   {
	  intHistory=coHistory.getSelectedIndex();
	  history.removeElementAt(intHistory);
	  coHistory.removeItemAt(intHistory);
	  intHistory=intHistory--;
   }
  public String replaceStr(int numberFunc,double com[],double x1,double x2)
   {
	   String strCoHis=String.valueOf(coFunc.getItemAt(numberFunc));
	   if(strCoHis.indexOf("A")>-1&&(numbers>0))
	      {strCoHis=strCoHis.replaceFirst("A",String.valueOf(com[0]));}
	   if(strCoHis.indexOf("B")>-1&&(numbers>1))
	      {strCoHis=strCoHis.replaceFirst("B",String.valueOf(com[1]));}
	   if(strCoHis.indexOf("C")>-1&&(numbers>2))
	      {strCoHis=strCoHis.replaceFirst("C",String.valueOf(com[2]));}
	   if(strCoHis.indexOf("D")>-1&&(numbers>3))
	      {strCoHis=strCoHis.replaceFirst("D",String.valueOf(com[3]));}
	   if((strCoHis.indexOf("E")>-1)&&(numbers>4))
	      {strCoHis=strCoHis.replaceFirst("E",String.valueOf(com[4]));}
	   strCoHis+=" / ["+String.valueOf(x1)+","+String.valueOf(x2)+"]";
	   return strCoHis;
   }
  public void back(boolean press)
   {
	   if(intHistory>0)
	   {
		   intHistory--;
	       String value=String.valueOf(history.elementAt(intHistory));
	       String items[]=value.split(" ");
	       coFunc.setSelectedIndex(Integer.parseInt(items[3]));
	       tfx1.setText(items[1]);
	       tfx2.setText(items[2]);
	       for(int i=4;i<items.length;i++)
	         {table.setValueAt(items[i],i-4,1);}
	       forward.setEnabled(true);
	       if(press){coHistory.setSelectedIndex(intHistory);}
	  }
	  else{back.setEnabled(false);forward.setEnabled(true);}
   }
  public void forward()
  {
	   if(intHistory<history.size()-1)
	   {
		   intHistory++;
	       String value=String.valueOf(history.elementAt(intHistory));
	       String items[]=value.split(" ");
	       coFunc.setSelectedIndex(Integer.parseInt(items[3]));
	       tfx1.setText(items[1]);
	       tfx2.setText(items[2]);
	       for(int i=4;i<items.length;i++)
	         {table.setValueAt(items[i],i-4,1);}
	      back.setEnabled(true);
	      coHistory.setSelectedIndex(intHistory);
	  }
	  else{forward.setEnabled(false);back.setEnabled(true);}
  }
  public boolean  check(double x1,double x2)
   {
	  boolean value=true;
	  if(x1>=x2)
	    {
		   value=false;tfx1.setText(String.valueOf(x2));
		   tfx2.setText(String.valueOf(x1));
	     }
	  if((numberFunc==6)&&(x1<0))
	     {value=false;tfx1.setText(String.valueOf(Math.abs(x1)));}
	  if((numberFunc==6)&&(x2<0))
	     {value=false;tfx2.setText(String.valueOf(Math.abs(x2)));}
	  if((numberFunc==6)&&(x1==0))
	     {value=false;tfx1.setText(String.valueOf(Math.abs(1)));}
	  if((numberFunc==6)&&(x2==0))
	     {value=false;tfx2.setText(String.valueOf(Math.abs(1)));}
	  return value;
   }
  public void cancel()
   {
	for(int i=0;i<numbers;i++)
	   {table.setValueAt("",i,1);}
	 tfx1.setText("");tfx2.setText("");
   }
  public static void main(String arg[])
	{
		graph g=new graph();
		g.setSize(800,570);
		g.setVisible(true);
	}
}