I went to a shop today to make enquires about a laptop which I want to use for programming and based on my budget I was given a DELL LATITUDE 7240; corei7, 256gb, 8gb ram at the rate of 160k(UK USED).
The questions I have now is that will the laptop be good enough for programming?
If you have used this laptop before, does the battery last long?

At the minimalist level,does a laptop make have anything to do with it's programming abilities?
The laptop specs are what should concern you, and from the specs you listed it's a decently powerful system and won't have any problem handling most programming tasks.
About the battery life, that's for you to determine.
When you go to purchase the laptop, you can run it in the store to test the battery life.

Rgade:
At the minimalist level,does a laptop make have anything to do with it's programming abilities?
The laptop specs are what should concern you, and from the specs you listed it's a decently powerful system and won't have any problem handling most programming tasks.
About the battery life, that's for you to determine.
When you go to purchase the laptop, you can run it in the store to test the battery life.

Alright, thanks.