Write a program that converts 10, 50, and 100 kilograms to pounds

That's not enough information to implement something. Do you just want it print out on the screen the results of the conversion? Or do you want something that actually accepts a given input? You need to give much more information about what you want. And please word it as a request, not a command.

just take unit converter in your mobile...
so I found 1kg=2.21pounds approximately..

now in java program, u convert it by multiplying each value to get in pounds...