calculatrice.java

Java 编写的科学计算器程序

		////////////*********Bouton virgule********//////////////
		else if(src==b)
		{
			if(!virg)
			{
				txt.setText(txt.getText()+".");
				virg=true;
			}
		}
		////////////*********Bouton Pi********//////////////
		else if(src==bexp)
		{
			txt.setText(""+Math.PI);
			virg=true;
		}
		////////////*********Bouton clear********//////////////
		else if(src==bc)
		{txt.setText("0");xp=1;xs=0;init=true;aux=0;shift=false;op=false;X1Y=true;
		mult=false;div=false;som=false;soust=false;nAr=false;nCr=false;
		activateP2P3(true);activatehex(false);Dec.setSelected(true);virg=false;
		txt.setBackground(Color.black);txt.setForeground(Color.GREEN);}
		////////////*********Bouton de +/-********//////////////
		else if(src==bpm)
		txt.setText(""+Double.parseDouble(txt.getText())*-1);
		else if(src==bcl)
		 txt.setText(txt.getText().substring(0,txt.getText().length()-1));
		 
		 ////////////*********Multiplication********//////////////
		else if(src==bMult)
		{
		try
		{
		if(init || op)
		{
			xp=(Double.parseDouble(txt.getText()));
			init=false;virg=false;
			txt.setText(""+xp);
		}
		else
		{
			Resultat();
			xp=(Double.parseDouble(txt.getText()));
		}
			op=true;mult=true;div=false;som=false;soust=false;YX=false;
			nAr=false;nCr=false;X1Y=true;
		}catch(NumberFormatException execp)
    	{
    		txt.setBackground(Color.LIGHT_GRAY);txt.setForeground(Color.RED);
    		txt.setText("ERROR :  CONVERTION  AVEC  VERGULE  FLOTTANTE  NON  SUPPORTEE ");
	     	activateP2P3(false);}
		}
		////////////*******Division******////////////
		else if(src==bDiv)
		{
		try
		{
		if(init || op)
		{
			xp=(Double.parseDouble(txt.getText()));
			init=false;virg=false;
			txt.setText(""+xp);
		}
		else
		{
			 Resultat();
		 xp=(Double.parseDouble(txt.getText()));
		}
		op=true;mult=false;div=true;som=false;soust=false;YX=false;
		nAr=false;nCr=false;X1Y=true;
		}catch(NumberFormatException execp)
    	{
    		txt.setBackground(Color.LIGHT_GRAY);txt.setForeground(Color.RED);
    		txt.setText("ERROR :  CONVERTION  AVEC  VERGULE  FLOTTANTE  NON  SUPPORTEE ");
		    activateP2P3(false);}
		}
		////////////////***********Somme**********////////////////
		else if(src==bSom)
		{
		try
		{
		if(init || op)
		{
			xs=(Double.parseDouble(txt.getText()));
			init=false;virg=false;
			txt.setText(""+xs);
		}
		else
		{
			 Resultat();
			 xs=(Double.parseDouble(txt.getText()));
		}
		op=true;mult=false;div=false;som=true;soust=false;YX=false;
		nAr=false;nCr=false;X1Y=true;
		}catch(NumberFormatException execp)
    	{
    		txt.setBackground(Color.LIGHT_GRAY);txt.setForeground(Color.RED);
    		txt.setText("ERROR :  CONVERTION  AVEC  VERGULE  FLOTTANTE  NON  SUPPORTEE ");
		    activateP2P3(false);}
		}
		////////////////************Soustraction***********//////////////////
		else if(src==bSoust)
		{
		try
		{
		if(init || op)
		{
			xs=(Double.parseDouble(txt.getText()));
			init=false;virg=false;
			txt.setText(""+xs);
		}
		else
		{
			Resultat();
			xs=(Double.parseDouble(txt.getText()));
		}
	    op=true;mult=false;div=false;som=false;soust=true;YX=false;
	    nAr=false;nCr=false;X1Y=true;
		}catch(NumberFormatException execp)
    	{
    		txt.setBackground(Color.LIGHT_GRAY);txt.setForeground(Color.RED);
    		txt.setText("ERROR :  CONVERTION  AVEC  VERGULE  FLOTTANTE  NON  SUPPORTEE ");
		    activateP2P3(false);}
	    }
	    //////////////////**************Resultat*************//////////////////
		else if(e.getSource()==bRes)
		{
			Resultat();
			init=true;virg=false;
		}
		//////////************Les fonction Scientifiques********/////////////
	 	else if(src==b2ndF)
	 	{shift=true;}
		else if(src==bPuis)
		{
			aux=Double.parseDouble(txt.getText());
			YX=true;init=false;nAr=false;nCr=false;X1Y=true;
			op=true;mult=false;div=false;som=false;soust=false;
		}
		else if(src==b10x)
		{
			double  x=Double.parseDouble(txt.getText());
			double  res=Math.pow(10,x);
			txt.setText(""+res);
		}
		else if(src==bX2)
		{
			double  x=Double.parseDouble(txt.getText());
			double res=Math.pow(x,2);
			txt.setText(""+res);
		}
		else if(src==bX1Y)
		{
		    aux=Double.parseDouble(txt.getText());
			YX=false;init=false;nAr=false;nCr=false;X1Y=true;
			op=true;mult=false;div=false;som=false;soust=false;			
		}
		else if(src==b1X)
		{
		    double x=Double.parseDouble(txt.getText());
		    if(x!=0)
		    {txt.setText(""+(1/x));}
		    else {txt.setBackground(Color.LIGHT_GRAY);txt.setForeground(Color.RED);
		    	  txt.setText(" ERROR!!  DIVISION  PAR  ZERO  IMPOSSIBLE ");
		          activateP2P3(false);}
		}
		else if(src==bLog)
		{
			double  x=Double.parseDouble(txt.getText());
			if(!shift && x>0)
			{
			double  res=Math.log(x);
			txt.setText(""+res);
			}
			else if(shift && x>0)
			{
			double  res=Math.log10(x);
			txt.setText(""+res);
			shift=false;	
			}
			else if(x<=0)
			{
				txt.setBackground(Color.LIGHT_GRAY);txt.setForeground(Color.RED);
				txt.setText(" ERROR!!  RULE : \"  X  DOIT  ETRE  >  A  ZERO  \" ");
			    activateP2P3(false);}
		}
		else if(src==bEx)
		{
			double  x=Double.parseDouble(txt.getText());
			double  res=Math.exp(x);
			txt.setText(""+res);
		}
		else if(src==bFact)
		{
			
		
			if(isValide(txt.getText()))
			{double res=fact(Double.parseDouble(txt.getText()));
			txt.setText(""+res);}
			else
			{
				txt.setBackground(Color.LIGHT_GRAY);txt.setForeground(Color.RED);
				txt.setText(" ERROR!!  RULE :  \"  N  DOIT  ETRE  UN ENTIER  >  A  ZERO \" ");
			    activateP2P3(false);}
		}
		else if(src==bSin)
		{
			if(!shift)
			{
			double  x=Math.toRadians(Double.parseDouble(txt.getText()));
		    double res=Math.sin(x);
			txt.setText(""+res);
			}
			else
			{
			double  x=Double.parseDouble(txt.getText());
			double  res=Math.asin(x);
			txt.setText(""+Math.toDegrees(res));
			shift=false;	
			}
		}
		else if(src==bCos)
		{
			if(!shift)
			{
			double  x=Math.toRadians(Double.parseDouble(txt.getText()));
			double res=Math.cos(x);
			txt.setText(""+res);
			}
			else
			{
			double  x=Double.parseDouble(txt.getText());
			double  res=Math.acos(x);
			txt.setText(""+Math.toDegrees(res));
			shift=false;	
			}
		}
		else if(src==bTan)
		{
			if(!shift)
			{
			double  x=Math.toRadians(Double.parseDouble(txt.getText()));
			double res=Math.tan(x);
			txt.setText(""+res);
			}
			else
			{
			double  x=Double.parseDouble(txt.getText());
			double  res=Math.atan(x);
			txt.setText(""+Math.toDegrees(res));
			shift=false;	
			}
		}
		else if(src==bSqrt)
		{
			double  x=Double.parseDouble(txt.getText());
			if(x>=0)
			{double res=Math.sqrt(x);
			txt.setText(""+res);}
			else {
				txt.setBackground(Color.LIGHT_GRAY);txt.setForeground(Color.RED);
				txt.setText(" ERROR!!  RULE  :  \"  X  DOIT  ETRE  >  A  ZERO  \" ");
			    activateP2P3(false);}
		}
		else if(src==bRand)
		{
			double  x=Double.parseDouble(txt.getText());
			double res=Math.random();
			txt.setText(""+res);
		}
		else if(src==bnAr)
		{
			aux=Double.parseDouble(txt.getText());
			nAr=true;YX=false;init=false;
			op=true;mult=false;div=false;som=false;soust=false;			
		}
			else if(src==bnCr)
		{
			aux=Double.parseDouble(txt.getText());
			nCr=true;YX=false;init=false;
			op=true;mult=false;div=false;som=false;soust=false;			
		}
		/////////************FIN des Fonctions Scientifiques********/////////
	
	    else if(src==bOff) System.exit(0);
	}
	public void itemStateChanged(ItemEvent i)
	{
		Object srci=i.getSource();
		if(srci==Scie)
		{
		this.resize(452,564);
		this.getContentPane().setLayout(new GridLayout(3,1));
        this.getContentPane().add(pTxt);this.getContentPane().add(p3);
        this.getContentPane().add(p2); this.setLocation(300,100);
        
		}
		else if(srci==Norm)
		{
		//Calculatrice c=new Calculatrice();
		this.getContentPane().removeAll();
		this.getContentPane().setLayout(new GridLayout(2,1));
		this.resize(452,331);
        this.getContentPane().add(pTxt);this.getContentPane().add(p2);
        this.setLocation(300,100);	
        //	c.show();
        //	this.dispose();
		}
		else if(dec)
		{
			activateOp(false);
			String dep=txt.getText();
			try
			{
			String s=fromDec(dep,detBaseDestination(srci));
			txt.setText(s);}
			catch(NumberFormatException e)
			{
				txt.setBackground(Color.LIGHT_GRAY);txt.setForeground(Color.RED);
				txt.setText("ERROR :  CONVERTION  AVEC  VERGULE  FLOTTANTE  NON  SUPPORTEE  ");
			    activateP2P3(false);}
		}
		else if(bin||oct||hex)
		{
			try
			{
			int x= toDec(txt.getText(),detBaseSource());
			String s=""+x;
			txt.setText(fromDec(s,detBaseDestination(srci)));}
			catch(NumberFormatException e)
			{
				txt.setBackground(Color.LIGHT_GRAY);txt.setForeground(Color.RED);
				txt.setText("ERROR :  CONVERTION  AVEC  VERGULE  FLOTTANTE  NON  SUPPORTEE  ");
			    activateP2P3(false);}
		}
	}
	public static void main (String[] args) 
	{
		Calculatrice c=new  Calculatrice();
	}
}