feat: finished Main.java

Author: TatsuyaRyujin

lesson_04/evanphilakhong/c++/main.cpp

@@ -7,7 +7,7 @@ bool isPrime(int num) {
                 count++;
             }
         }
-        if (count==2) {
+        if (count == 2) {
             cout << "This is a Prime Number" << endl;
             return true;
         }

lesson_04/evanphilakhong/java/Main.java

@@ -1,19 +1,36 @@
-/*
- * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
- * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Main.java to edit this template
- */
-
-/**
- *
- * @author Evan Philakhong
- */
 public class Main {
 
     /**
      * @param args the command line arguments
      */
+
+     public static boolean isPrime(int num) {
+        int count = 0;
+        for (int i = num; i > 0; i--) {
+            if (num%i == 0) {
+                count++;
+            }
+        }
+        if (count == 2) {
+            System.out.println("This is a Prime Number");
+            return true;
+        }
+        System.out.println("This is not a Prime Number");
+        return false;
+     }
     public static void main(String[] args) {
-        // TODO code application logic here
+        System.out.println("Testing Prime Nums");
+        isPrime(2);
+        isPrime(3);
+        isPrime(5);
+        isPrime(7);
+        isPrime(11);
+        System.out.println("Testing Non-Prime Nums");
+        isPrime(1);
+        isPrime(4);
+        isPrime(6);
+        isPrime(8);
+        isPrime(9);
     }
 
 }