java-coding-problems/src/PrimeNumberCheck.java at main · jfullstackdev/java-coding-problems

30 lines (24 loc) · 483 Bytes

public class PrimeNumberCheck {
	public static void main(String[] args) {
        int n;
        System.out.print("is ");
        System.out.print(n);
        System.out.print(" prime number ? ");
		System.out.println(isPrime(n));
	public static boolean isPrime(int n) {
		if (n == 0 || n == 1) {
			return false;
		if (n == 2) {
			return true;
		for (int i = 2; i <= n / 2; i++) {
			if (n % i == 0) {
				return false;
		return true;

Navigation Menu

Uh oh!

Uh oh!

FilesExpand file tree

PrimeNumberCheck.java

Latest commit

History

PrimeNumberCheck.java

File metadata and controls