Create Main.java

05-div-by-3/Main.java

@@ -0,0 +1,21 @@
+class Main {
+  public static void main(String[] args) {  
+    divby3(212123);//true
+    }
+
+  public static void divby3(int div){
+    int sum = 0
+
+    while (div != 0){
+      sum += div % 10
+      div = div /10  
+    }  
+
+    if(sum % 3 ==0){
+      system.out.println("this number is divisible by 3 ");
+      else{
+      system.out.println("this number is not divisible by 3 ");
+      }
+    }
+  }
+}