Programming Projects, Chapter 1

Programming Projects, Chapter 1

Question 1

Obtain a copy of ExerciseProgram.java
Compile it
Run it

Question 2

Create (by hand) a copy of FirstProgram.java
Compile it until there are no errors
Run it

Question 3

Modify FirstProgram.java so that it adds three numbers instead of two
Compile it
Run it

Question 4

Copy HappyFace.java into the usual folder
Compile Happyface.java

Cut and paste the following code into notepad:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 TRANSITIONAL//EN">

<html>

<head>

<title>Test Java Applet</title>

</head>

<body>

<applet

code=HappyFace.class

width=1000

height=1000

</applet>

</body>

</html>

Save as “test.html” in the same folder as Happyface.class
Open test.html with a web brwoser (e.g. internet explorer). The happy face should appear.

Change HappyFace so that it displays a picture of a snowman. [Hint: draw three circles one above the other. Make the circles progressively smaller going from bottom to top. Make the top circle a happy face.]

[24-Oct-06]