View difference between Paste ID: 6iCqiJgt and u7K2rvU8

 import java.util.Scanner;
 
 public class PrimeTriangle {
     public static void main(String[] args) {
         Scanner scanner = new Scanner(System.in);
         int n = Integer.parseInt(scanner.nextLine());
         StringBuilder stringBuilder = new StringBuilder();
 
         for (int i = 1; i <= n; i++) {
             if (isPrime(i)) {
                 stringBuilder.append("1");
                 System.out.println(stringBuilder);
 
             } else {
                 stringBuilder.append("0");
             }
         }
     }
 
     static boolean isPrime(int i) {
         int divider = 2;
         int maxDivider = (int) Math.sqrt(i);
         boolean prime = true;
         while (prime && (divider <= maxDivider)) {
             if (i % divider == 0) {
                 prime = false;
             }
             divider++;
         }
         return prime;
     }
 }