ArrayList of prime numbers

import java.util.*;

public class test {
    public static void main(String[] args) {
        System.out.println(primeFinder(13));
    }

    public static ArrayList primeFinder(int n) {
        ArrayList<Integer> integerArray = new ArrayList<Integer>();
        
        for (int i = 1; i <= n; i++) {
            int count = 0;
            for (int j = i; j >= 1; j--) {
                if (i % j == 0) {
                    count++;
                }
            }
            if (count == 2) {
                integerArray.add(i);
            }
              
        }
        return integerArray;
    }
}

Similar codes

2 votes112 views6 answers
How to reverse a number in java
Java
1 vote133 views2 answers
Dockerfile for spring boot app
Java Spring
0 vote117 views1 answer
If en java avec un point d'interrogation
Java
1 vote126 views1 answer
How to set checkbox size in android
Java
4 votes108 views1 answer
Raise error java
Java
2 votes111 views2 answers
How can I split string according to space in java?
Java
0 vote121 views1 answer
Reverse negative number
Java
0 vote129 views2 answers
Generics Interface in java
Java
0 vote105 views1 answer
Java check if property exists in class
Java
0 vote169 views1 answer
Spring swagger ui login oauth2
Java Spring