tips for beginner java script learner

[homi1ife]

Hello,

I'm recently learning computer science in school and I am learning how to create some scripts. I'm having trouble in creating some type of script and I was wondering if someone could help me out on it. I'm not asking for you guys to write the whole script for me but some tips on what I should look for, etc. I know most of the terminology.

scripts with problems:

1) Write a program that calculates n!

2)Write a program that determines whether a given natural number is prime or composite.

3)Write a program with three integer variables, n1, n2, and n3. Initialize two of those variables, i.e. n1 and n2, with input from the user. Then swap the values of these two variables so that the value that was originally in n1 winds up in n2 and the value that was originally in n2 winds up in n1. Note: The third variable plays an important role. If you are having trouble, first try the next problem below involving the two balls and the three boxes.

4)Write a program that finds n! (wondering if this is the same as #1.)

Thanks Alot. I appreciate the help.

[RyanRyan52]

All i know is the answer to the first one and the third:

1. You could do a loop that when n>0 will multiply n by b (another variable initialized to 1) then it will subtract 1 from n and repeat
ounce the loop is done it will output b

3. To do that you would put the value of n1 into n3, then n2 into n1, then n3 into n2

I hope you figure them out,
Ryan

PS 4 is the same as 1 unless you mean it does the factorial backwords
If that is what you mean, I can't explain it w/out writing the script