code. compile. run. debug. share.
Source Code
Language
import java.util.Scanner;
public class Main {
// A function to test if a number is prime, takes an integer and returns a
// boolean.
public static boolean isPrime(int n) {
if (n < 2) {
return false;
}
// Try dividing by all numbers from 2 to sqrt(n).
for (int i = 2; i*i <= n; ++i) {
if (n % i == 0) {
return false;
}
}
// If we get here, we didn't find a factor, so n is prime.
return true;
}
// Main program starts here.
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("What is your name? ");
String name = input.nextLine();
System.out.println("Hello, " + name + "!");
System.out.print("What is your favorite number? ");
int number = input.nextInt();
System.out.print("Your favorite number is " + number);
if (isPrime(number)) {
System.out.println(", and that's a prime number!");
} else {
System.out.println(". It's not a prime number, but that's okay!");
}
}
}
Compiling Program...
Standard Input:
Interactive Console
Text
Program is not being debugged. Click "Debug" button to start program in debug mode.
| # | Function | File:Line |
|---|
| Variable | Value |
|---|
| Register | Value |
|---|
| Expression | Value |
|---|
| # | Description |
|---|