I have to write a program that asks the user to input a positive integer. It should than output a message indicating whether the number is a prime number.
s080072 0 Newbie Poster
alpe gulay -1 Light Poster
..'in my own way I prefer to put a condition like this:
int input=5;
if(input%2!=0)
System.out.print(input+" is prime number!");
else
System.out.print(input+" is not prime number!");
javaAddict 900 Nearly a Senior Poster Team Colleague Featured Poster
And what if the user enters 24?
Then he should check for 2,3,4,5,8,12. The algorithm for checking prime numbers is a little bit more complicated.
It will require a for loop from 2 till the number divided by 2. Then in the for-loop you will have the if statement like the one posted.
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