clase 1

<< PRIMER EJEMPLO >>

// {}
class ejem{
public static void main(String[] arg){
System.out.println("Primer Ejemplo");
}
}

<< GRAFICO 1 >>

import java.awt.*;
import java.applet.*;
public class graf01 extends Applet{
public void paint(Graphics g){
g.drawLine(0,0,100,100);
}
}

<< GRAFICO 2 >>

import java.lang.*;
import java.awt.*;
import java.applet.*;
public class graf02 extends Applet{
public void paint(Graphics g){
Color c1 = new Color( 255, 125, 0 ); // RGB
double x, y,h,Sx,Sy;
int Xp,Yp,Xp1,Yp1; ;
h=0.01;
Sx=10; Sy=50;
g.setColor(c1);
Xp1=0; Yp1=400;
g.drawLine(0,400,800,400);
//g.MoveTo(Xp,Yp);
for (x=0; x<10; x+=h){
y = x*x;
Xp = (int)(x*Sx);
Yp = 400-(int) (y*Sy);
g.drawLine(Xp1,Yp1,Xp,Yp);
Xp1=Xp; Yp1=Yp;
//g.LineTo(Xp,Yp);
//g.MoveTo(Xp,Yp);
}
}
}


<< GRAFICO 3 >>
import java.awt.*;
import java.applet.*;
public class graf03 extends Applet{
public void paint(Graphics g){
Color c1 = new Color( 255, 125, 0 ); // RGB
Color c2 = new Color( 0, 125, 255 ); // RGB
Color c3 = new Color( 255, 125, 32 );
g.setColor(c1);
g.drawLine(0,0,100,100);
g.drawArc(100, 40, 70, 70, 0, 75); // ( x, y, ancho, alto, angi, angf )
g.fillArc(200,10,70, 90, 0, 270);
g.setColor(c2);
g.drawRect(110,110,120,40); // (x, y, ancho, alto)
g.fillRect(10,160,120,40);
g.drawRoundRect(20,200,120,40,20,30); // (x, y, ancho, alto, diamx,diamy)

g.setColor(c2);
}
}