Update app.py

test file made with ChatGPT

app.py

@@ -1,3 +1,24 @@
 import streamlit as st
+import time
 
-st.markdown("Hello, World")
+def main():
+    st.title("Simple Streamlit Program")
+
+    # Wait for 5 seconds
+    with st.spinner("Waiting for 5 seconds..."):
+        time.sleep(5)
+
+    # Show completed message
+    st.success("Task completed!")
+
+    # File upload feature
+    st.header("File Upload")
+    uploaded_file = st.file_uploader("Choose a file")
+
+    if uploaded_file is not None:
+        file_contents = uploaded_file.read()
+        st.markdown("### File Contents:")
+        st.markdown(f"```{file_contents.decode()}```")
+
+if __name__ == "__main__":
+    main()