Update app.py

app.py

@@ -42,6 +42,13 @@ def change_str(str2,num2):
         new_srt = new_srt + str2[i]
     return new_srt
 
+def str_count(str3,sub_str):
+    str3 = str3.lower()
+    sub_str = sub_str.lower()
+    x = new_str3.count(new_sub_str)
+    return x
+    
+
 st.markdown("<h3 style='text-align:center; font-size:24px;'>Mathematical and String Operations</h3>", unsafe_allow_html=True)
 st.write("---")
 radio_bar = st.sidebar.radio(options=[description1, description2, description3, description4, description5, description6, description7, description8, description9], label="Select any one:")
@@ -77,4 +84,13 @@ if radio_bar == description4 :
     all_data = st.button("Show result")
     if all_data:
         result = change_str(str2,char_num)
-        st.success(result)
+        st.success(result)
+
+if radio_bar == description5 :
+    st.markdown("<h6 style='text-align:center; font-size:16px;'>"+description5+"</h6>", unsafe_allow_html=True)
+    str3 = st.text_input(label="Enter the string:",value="")
+    sub_str= st.text_input(label="Enter the sub-string:",value="")
+    all_data = st.button("Show result")
+    if all_data:
+        result = str_count(str3,sub_str)
+        st.success(f"The sub-string is present {result} times in the string")