Answers to in class programming assignments:
Script #1
<html>
<head>
</head>
<body>
<script language="JavaScript">
//prepare program
var grade1, grade2, grade3; //declare 3 variables
var gradeSum, gradeAverage; // holds sum of scores
//receive input
grade1 = prompt("Enter test grade #1:","0");
grade2 = prompt("Enter test grade #2:","0");
grade3 = prompt("Enter test grade #3:","0");
// process input
gradeSum = parseInt(grade1) + parseInt(grade2) +
parseInt(grade3);
gradeAverage = gradeSum / 3; //calcs average
//output results
if ( gradeAverage >= 60)
document.writeln("Congratulation you passed with an average score of " + gradeAverage + ".");
else
document.writeln("You average score is" + gradeAverage + ". You did not pass. ");
</script>
</body>
</html>
Script #2
<html>
<head>
</head>
<body>
<script language="JavaScript">
//prepare program
var theNumber = 10;
while(theNumber >= 0)
{
document.writeln("<p>The number is: " + theNumber+"</p>");
theNumber = theNumber - 1; //decrement the number
} //end while loop
</script>
</body>
</html>
Script #3
<html>
<head>
</head>
<body>
<script language="JavaScript">
//prepare program
var theNumber = -5;
while(theNumber <= 5)
{
document.writeln("<p>The number is: " + theNumber+"</p>");
theNumber = theNumber + 1; //increment the number
} //end while loop
</script>
</body>
</html>