Stringbuilder Questions

I am very new to c#, and i ran into some issues when i try to perform a sql query with stringbuilder. here is part of the table named :

I want to concatenate or append special character as colon : after an every 2 character in string. for example:

Introduction i have an app and want to force the user to update it, if a new version is at the google play market. this

I have simple block of code wich should parse string like "5555;john snow" //example of code without string population val str =

I am working on the project, which there is c# project use the dll like that: public string getmachinekey() {

I'm making an app that can add from button click some items to a recyclerview formatted as "name / quantity / price" and

I've written some code which has a lot of string creation. to try to avoid the expensive string creation over and over, i'm using the java

I am wanting to print the following output: itinerary: new york to france to italy to atlanta to salt lake city. please note that my

Stringbuilder builder = new stringbuilder(); builder.append("hello"); the length of

I can't do this: stringbuilder[] textarray = new stringbuilder("word1", "word2", "word3",

My requirement says to read the select sql query (a huge one around 300 lines) from a .txt file and run it through jdbc. i tried doing so and was

This code doesn't work for the test case: aacabdkacaa, but it works for babad or cbbd. i wrote a print