mmmm...java

Chef · Post by **Chef** » Fri Oct 17, 2003 6:32 pm

i know there are a few java programmers on this site...so heres a dumb question: if i write a program, how do i put it on a website? ^_^;

Eek-1 · Post by **Eek-1** » Fri Oct 17, 2003 7:35 pm

once you're done, compile your .java and then write in html

Code: Select all

<html>
...
<applet code="whateverthenameis.class" width="12345" height="67890">
</applet>
...
</html>

Chef · Post by **Chef** » Fri Oct 17, 2003 7:55 pm

i keep getting a blank page...

downwithpants · Post by **downwithpants** » Fri Oct 17, 2003 8:24 pm

have you written your paint(Graphics); method and it works all right?

if the .class file is in a different directory from the html file, you have to add codebase="location" to the <applet> tag, where location is the location of the directory the .class file is in.

Chef · Post by **Chef** » Fri Oct 17, 2003 8:26 pm

downwithpants wrote:have you written your paint(Graphics); method and it works all right?

if the .class file is in a different directory from the html file, you have to add codebase="location" to the <applet> tag, where location is the location of the directory the .class file is in.

i dont know what that is. i dont know much about java ^_^;

downwithpants · Post by **downwithpants** » Fri Oct 17, 2003 8:56 pm

hmm, ok
is your program already written in java? and are you familiar with object oriented programming?

if so, to create a java program that will run in a webpage, you need to create a class that extends class Applet or JApplet (a subclass of Applet).

Class Applet has the five methods: (JApplet also has them through inheritance)

init();
start();
paint(Graphics);
stop();
destroy();

the browser calls init(); (either from class Applet or your class) to load the applet. You can write an init(); method in your class to create a modified version of the init(); method that will override the init(); method in class Applet. you can write into your init(); method statements that you want to execute when the applet loads in an init(); method in your class.

the browser calls paint(Graphics); to create the display of the window. you can write statements in a paint(Graphics); method in your class in order to control the display.

Chef · Post by **Chef** » Fri Oct 17, 2003 9:01 pm

downwithpants wrote:hmm, ok
is your program already written in java? and are you familiar with object oriented programming?

if so, to create a java program that will run in a webpage, you need to create a class that extends class Applet or JApplet (a subclass of Applet).

Class Applet has the five methods: (JApplet also has them through inheritance)

init();
start();
paint(Graphics);
stop();
destroy();

the browser calls init(); (either from class Applet or your class) to load the applet. You can write an init(); method in your class to create a modified version of the init(); method that will override the init(); method in class Applet. you can write into your init(); method statements that you want to execute when the applet loads in an init(); method in your class.

the browser calls paint(Graphics); to create the display of the window. you can write statements in a paint(Graphics); method in your class in order to control the display.

how would i do that?

im really new at this ^_^;

downwithpants · Post by **downwithpants** » Fri Oct 17, 2003 9:37 pm

it might look something like:

import java.awt.*;
import java.applet.*;
import java.util.*;

public class myProgram extends JApplet{

private int x;
private int y;

public void init() {
Date d= new Date;
x= d.getHours();
y= d.getDay();
}

public void paint (Graphics g){
g.drawString("The hour is" + x +". The day is" + y);
}

}

When the browser calls init(); it will get the statements
{Date d= new Date;
x= d.getHours();
y= d.getDay();}

Then when it calls paint(Graphics g); it will get the statements
{g.drawString("The hour is" + x +". The day is" + y);}

When it calls start(); stop(); or destroy(); it will use the methods defined in Class Applet

Eek-1 · Post by **Eek-1** » Fri Oct 17, 2003 11:33 pm

before programming your own, why not copy/paste a simple Hello World example in java online tutorials, to see if it works. If not, you probably have not installed java virtual machine for your browser.