abstract classes

Author: ProshantaDebnath

19.Write a java program to implement an abstract class.java

@@ -0,0 +1,25 @@
+abstract class Class1 {
+    abstract void method2();
+    void method1(){
+        System.out.println("Factorial of 5 is:");
+        int f=1,i;
+        for(i=1;i<=5;i++){
+            f=f*i;
+        }
+        System.out.println(f);
+      }
+    }
+class Class2 extends Class1{
+   void method2(){
+       int a=11,b=234;
+       System.out.println("Addtion of two number is : " + (a+b));
+   }
+}
+
+public class AbstrackMethod {
+    public static void main(String args[]){
+        Class2 obj =new Class2();
+        obj.method1();
+        obj.method2();
+    }
+}