but I just running out of time...
How can you be running out of time ?. You posted yesterday
If you can't be bothered to do a simple Google search do think we are going to believe that you actually tried to do anything without first posting on the forum ? If you're behind schedule, it certainly isn't our fault.
I know that is very annoying to ask for the sketch,
Yes , it is.
but I have read a lot of posts about OneWire lib. & DallasTemp. lib. and a lots of DS18B20 examples but I can't make it work.
Really ?
Since you read so much about it perhaps you can enlighten us on why it is called ONEWIRE ?
Why don't your tell us what you have tried to get it working
Post a photo of your circuit. Draw a schematic of how you wired the sensor and post a photo of that.
Why don't your explain to us what you tried (how did you connected it and post the code you tried)
I just want to finish a school project
Do you think you should get credit for a project you didn't do ?
Is that fair to the other students who actually DID their own work ?
You asked for help. I gave you a suggestion, which you ignored. If you followed my suggestion your program would already be running by now. You have a right to be sceptical, or have your doubts, but what I am telling you is that when you post here asking for someone to write your code (which ,by the way , we generally don't do , at least not entire programs) and the response you get from the forum is a suggestion to google "this" or "that", the people who are making that suggestion have already done it a million times and know what you are going to find and know that if you trust us and follow our suggestion you will be rewarded. But if you are lazy or don't believe us you will not find what we know you will find, and in the end you will end up with nothing. Stop arguing and do what I suggested. Do it now.