Create app.py

app.py

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+import streamlit as st
+
+# Title
+st.title("🧮 Simple Calculator")
+
+# User Inputs
+st.write("Enter two numbers and choose an operation:")
+num1 = st.number_input("Enter first number", format="%f")
+num2 = st.number_input("Enter second number", format="%f")
+
+operation = st.selectbox("Choose operation", ("Add", "Subtract", "Multiply", "Divide"))
+
+# Button
+if st.button("Calculate"):
+    if operation == "Add":
+        result = num1 + num2
+        st.success(f"Result: {result}")
+    elif operation == "Subtract":
+        result = num1 - num2
+        st.success(f"Result: {result}")
+    elif operation == "Multiply":
+        result = num1 * num2
+        st.success(f"Result: {result}")
+    elif operation == "Divide":
+        if num2 != 0:
+            result = num1 / num2
+            st.success(f"Result: {result}")
+        else:
+            st.error("Division by zero is not allowed.")