Imperative code example.

demo/03/src/main/java/pl/amu/edu/demo/primes/UglyImperativePrimes.java

@@ -0,0 +1,32 @@
+package pl.amu.edu.demo.primes;
+
+import lombok.NoArgsConstructor;
+
+@NoArgsConstructor
+public class UglyImperativePrimes {
+
+    public static void main(String[] args) {
+        new UglyImperativePrimes().printPrimes();
+    }
+
+    public void printPrimes() {
+        for (int i = 0; i < 121; i++) {
+            if (isPrime(i)) {
+                System.out.printf("%d is prime\n", i);
+            }
+        }
+    }
+
+    private boolean isPrime(int number) {
+        if (number <= 0) {
+            return false;
+        }
+        for (int i = 2; i <= (int) Math.sqrt(number); i++) {
+            if (number % i == 0) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+}