diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..5c50d61
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+
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+
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
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--- /dev/null
+++ b/.idea/modules.xml
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+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
new file mode 100644
index 0000000..bf3a4c9
--- /dev/null
+++ b/.idea/workspace.xml
@@ -0,0 +1,72 @@
+
+
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+ 1583096478615
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+ 1583096478615
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\ No newline at end of file
diff --git a/Main.java b/Main.java
new file mode 100644
index 0000000..bbbdad9
--- /dev/null
+++ b/Main.java
@@ -0,0 +1,47 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package pkg2powern;
+/**
+ *
+Ebtsam FATHY
+*/
+ import java.util.Scanner;
+
+public class Main {
+
+ /**
+ * @param args the command line arguments
+ */
+
+
+ public static void main(String[] args) {
+
+ int N,pow;
+ int Result=1;
+ Scanner sc=new Scanner(System.in);
+ System.out.println("enter the number");
+ N=sc.nextInt();
+ System.out.println("enter the power");
+ pow=sc.nextInt();
+ if(N>=0&&pow==0){
+ Result=1;
+ }
+ if(N==0&&pow>=1){
+ Result=0;
+ }
+ else{
+ int i=1;
+ while(i<=pow){
+ Result=Result*N;
+ i++;
+ }
+ }
+ System.out.println( N+"^"+pow+"="+Result);
+
+ }
+ }
+
+
diff --git a/git_assignment_initial4.iml b/git_assignment_initial4.iml
new file mode 100644
index 0000000..c90834f
--- /dev/null
+++ b/git_assignment_initial4.iml
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/git_assignment_initial6.iml b/git_assignment_initial6.iml
new file mode 100644
index 0000000..c90834f
--- /dev/null
+++ b/git_assignment_initial6.iml
@@ -0,0 +1,11 @@
+
+
+
+
+
+
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+
+
+
+
\ No newline at end of file
diff --git a/src/CircleCircumference.java b/src/CircleCircumference.java
new file mode 100644
index 0000000..e9fb7f0
--- /dev/null
+++ b/src/CircleCircumference.java
@@ -0,0 +1,11 @@
+
+public class CircleCircumference implements ISubscriber {
+
+ @Override
+ public void notifySubscriber(String input) {
+ // TODO Auto-generated method stub
+ double r=Double.parseDouble(input);
+ System.out.println("circle circumference = "+(2*3.14*r));
+ }
+
+}
diff --git a/src/LucasSeries.java b/src/LucasSeries.java
new file mode 100644
index 0000000..1a968cf
--- /dev/null
+++ b/src/LucasSeries.java
@@ -0,0 +1,17 @@
+public class LucasSeries implements ISubscriber {
+ public static int lucas_series(int number) {
+ if (number == 0)
+ return 2;
+ if (number == 1)
+ return 1;
+ return lucas_series(number - 1) + lucas_series(number - 2);
+ }
+
+ @Override
+ public void notifySubscriber(String input) {
+ int Lenght = Integer.parseInt(input);
+ System.out.println("Hello, I am really a simple Lucas series and I am notified with " + input);
+ System.out.println("LUcas Number Is : "+lucas_series(Lenght));
+ }
+
+}
diff --git a/src/Main.java b/src/Main.java
index 9b8c2b0..de46824 100644
--- a/src/Main.java
+++ b/src/Main.java
@@ -1,17 +1,25 @@
import java.util.Scanner;
public class Main {
- private static ISubscriber subscribers [] = {
- new SimpleSubscriber(),
- new ReallySimpleSubscriber(),
- };
- public static void main(String[] args) {
- Topic mathTopic = new Topic();
- for (ISubscriber sub : subscribers) {
- mathTopic.addSubscriber(sub);
- }
- Scanner sc = new Scanner(System.in);
- String input = sc.next();
- mathTopic.dispatchEvent(input);
- }
+ private static ISubscriber subscribers [] = {
+ new SimpleSubscriber(),
+ new ReallySimpleSubscriber(),
+ new SummationSeries(),
+ new SphereCircumference(),
+ new LucasSeries(),
+ new Spherearea(),
+ new SphereVolume(),
+ new CircleCircumference()
+ };
+ public static void main(String[] args) {
+ Topic mathTopic = new Topic();
+ for (ISubscriber sub : subscribers) {
+ mathTopic.addSubscriber(sub);
+ }
+ Scanner sc = new Scanner(System.in);
+ String input = sc.next();
+ mathTopic.dispatchEvent(input);
+ }
+
+
}
diff --git a/src/SphereCircumference.java b/src/SphereCircumference.java
new file mode 100644
index 0000000..8586e2d
--- /dev/null
+++ b/src/SphereCircumference.java
@@ -0,0 +1,8 @@
+
+public class SphereCircumference implements ISubscriber {
+
+ public void notifySubscriber(String input) {
+ double R = Double.parseDouble(input);
+ System.out.println("Sphere Circumference is = " + (2*3.14*R));
+
+}
diff --git a/src/SphereVolume.java b/src/SphereVolume.java
new file mode 100644
index 0000000..974905c
--- /dev/null
+++ b/src/SphereVolume.java
@@ -0,0 +1,10 @@
+
+public class SphereVolume implements ISubscriber {
+ @Override
+ public void notifySubscriber(String input) {
+ // TODO Auto-generated method stub
+ double radius = Double.parseDouble ( input );
+ double volume =((double)4/3) * Math.PI * Math.pow(radius,3) ;
+ System.out.println("Sphere Volume is : " + volume);
+ }
+}
diff --git a/src/Spherearea.java b/src/Spherearea.java
new file mode 100644
index 0000000..178381c
--- /dev/null
+++ b/src/Spherearea.java
@@ -0,0 +1,14 @@
+package myPackage;
+
+public class Spherearea implements ISubscriber{
+
+ @Override
+ public void notifySubscriber(String input) {
+ double radius = Double.parseDouble(input);
+ String result = String.valueOf(4*3.14*radius*radius);
+ System.out.println("Sphere area = " + result);
+ }
+}
+
+
+
\ No newline at end of file
diff --git a/src/SummationSeries.java b/src/SummationSeries.java
new file mode 100644
index 0000000..7a2c38f
--- /dev/null
+++ b/src/SummationSeries.java
@@ -0,0 +1,26 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package main;
+
+import java.util.Scanner;
+
+/**
+ *
+ * @author egypt2
+ */
+public class SummationSeries implements ISubscriber{
+ @Override
+ public void notifySubscriber(String input) {
+ // TODO Auto-generated method stub
+ int n = Integer.parseInt(input);
+ System.out.println("Hello, I am really a simple summation series and I am notified with " + input);
+
+ int result = 0;
+ result = n*(n+1)/2;
+ System.out.println("The sum of series is " + result);
+ }
+
+}
\ No newline at end of file