diff --git a/gitops/.keep b/gitops/.keep
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/gitops/gitee/.keep b/gitops/gitee/.keep
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/gitops/gitee/Add.java b/gitops/gitee/Add.java
new file mode 100644
index 0000000000000000000000000000000000000000..0175a26ed5be8cf26da0af641240aa4b9b33911e
--- /dev/null
+++ b/gitops/gitee/Add.java
@@ -0,0 +1,10 @@
+package gitops.gitee;
+
+class Add implements ICalculate{
+
+    private double result;
+    public double calculate(double m,double n){
+        result=m+n;
+        return result;
+    }
+}
\ No newline at end of file
diff --git a/gitops/gitee/Calculate.java b/gitops/gitee/Calculate.java
new file mode 100644
index 0000000000000000000000000000000000000000..4be8d5c9d420953e450d2d61013ce2bb0cd32390
--- /dev/null
+++ b/gitops/gitee/Calculate.java
@@ -0,0 +1,7 @@
+package gitops.gitee;
+
+class Calculate{
+    public double doCalculate(ICalculate cal,double a,double b){
+        return cal.calculate(a,b);
+    }
+}
\ No newline at end of file
diff --git a/gitops/gitee/Calculator.java b/gitops/gitee/Calculator.java
new file mode 100644
index 0000000000000000000000000000000000000000..0b4ab296a636cc77242588936c23dbb844df65a8
--- /dev/null
+++ b/gitops/gitee/Calculator.java
@@ -0,0 +1,28 @@
+//Calculator.java
+package gitops.gitee;
+
+import java.util.Scanner;
+
+public class Calculator {
+
+    public static void main(String[] stra0) {
+
+        double op1=12;
+        double op2=13;
+	    System.out.println("Please Input Two Double Numbers & Non Double to Exit!");
+	    Scanner sc = new Scanner(System.in);
+        while(sc.hasNextDouble()){
+        	op1=sc.nextDouble();
+		    while(sc.hasNextDouble()){
+                op2=sc.nextDouble();
+                System.out.print("Add Sub Mul Div Mod Fac Pow Resultes:\n");
+                Calculate cal=new Calculate();
+                System.out.println(op1+" + "+op2+" = "+ cal.doCalculate(new Add(),op1,op2));
+                System.out.println(op1+" - "+op2+" = "+ cal.doCalculate(new Sub(),op1,op2));
+                System.out.println(op1+" * "+op2+" = "+ cal.doCalculate(new Mul(),op1,op2));
+                System.out.println(op1+" / "+op2+" = "+ cal.doCalculate(new Div(),op1,op2));
+                break;
+		    }
+	    }
+    }
+}
\ No newline at end of file
diff --git a/gitops/gitee/Div.java b/gitops/gitee/Div.java
new file mode 100644
index 0000000000000000000000000000000000000000..7fdf15105eecf29ffb53de74ffc57ada8c3d3cea
--- /dev/null
+++ b/gitops/gitee/Div.java
@@ -0,0 +1,11 @@
+package gitops.gitee;
+
+class Div implements ICalculate{
+
+    private double result;
+
+    public double calculate(double  m,double  n){
+        result=m/n;
+        return result;
+    }
+}
\ No newline at end of file
diff --git a/gitops/gitee/ICalculate.java b/gitops/gitee/ICalculate.java
new file mode 100644
index 0000000000000000000000000000000000000000..0fe70cf4d96c9962ddb16de779daa80677c7e020
--- /dev/null
+++ b/gitops/gitee/ICalculate.java
@@ -0,0 +1,5 @@
+package gitops.gitee;
+
+interface ICalculate{
+    double calculate(double m, double n);
+}
\ No newline at end of file
diff --git a/gitops/gitee/Mul.java b/gitops/gitee/Mul.java
new file mode 100644
index 0000000000000000000000000000000000000000..b6629b5e7cbb70178e1864e8380fdaa628425654
--- /dev/null
+++ b/gitops/gitee/Mul.java
@@ -0,0 +1,11 @@
+package gitops.gitee;
+
+class Mul implements ICalculate{
+
+    private double result;
+    
+    public double calculate(double  m,double  n){
+        result=m*n;
+        return result;
+    }
+}
\ No newline at end of file
diff --git a/gitops/gitee/Sub.java b/gitops/gitee/Sub.java
new file mode 100644
index 0000000000000000000000000000000000000000..fb0e7d2e848b778e8ab0d8bf98433d30c26cbde8
--- /dev/null
+++ b/gitops/gitee/Sub.java
@@ -0,0 +1,11 @@
+package gitops.gitee;
+
+class Sub implements ICalculate{
+
+    private double result;
+    
+    public double calculate(double  m,double  n){
+        result=m-n;
+        return result;
+    }
+}
\ No newline at end of file