Update app.py

app.py

@@ -0,0 +1,20 @@
+import streamlit as st
+
+def main():
+    st.title("Chat Application (Like WhatsApp)")
+    
+    if "messages" not in st.session_state:
+        st.session_state["messages"] = []
+    
+    user_input = st.text_input("Enter your message:")
+    
+    if st.button("Send"):
+        if user_input:
+            st.session_state["messages"].append(f"You: {user_input}")
+    
+    st.subheader("Chat History")
+    for message in st.session_state["messages"]:
+        st.write(message)
+    
+if __name__ == "__main__":
+    main()