How do I write, load a program?

How do I write a program to read sensor values, download it to the Arduino board, read the sensor values in a standalone mode and upload the sensor values to a laptop?

Murty

How do I write a program to read sensor values

Use the Arduino IDE. It has an adequate text editor.

download it to the Arduino board

In the IDE, press the Upload button.

read the sensor values

Using the analogRead() function.

in a standalone mode and upload the sensor values to a laptop?

You will need something like an SD card to write to. Then, remove the SD card, and plug it into your computer.

After the program is uploaded, do I need to do anything (like reset Arduino board) to get the program to run?

No it will run automatically.

Are you in the same class as jai1?

my spouse