more classes and objects code added

src/OOP_Concepts/Classes/Classe & Objects 1/OOPS.java

@@ -0,0 +1,27 @@
+class Pen{
+    String color;
+    String type;
+
+    public void write(){
+        System.out.println("Write Something.");
+    }
+
+    public void printColor(){
+        System.out.println(this.color);
+    }
+}
+
+public class OOPS{
+    public static void main(String args[]){
+        Pen pen1 = new Pen();
+        pen1.color = "blue";
+        pen1.type = "gel";
+
+        Pen pen2 = new Pen();
+        pen2.color = "black";
+        pen2.type = "ballpoint";
+
+        pen1.printColor();
+        pen2.printColor();
+    }
+}