You can process the fruit until it is pretty much liquified. There will be pulp in the bowl of the processor, mixed in with the juice. If you don't want to consume the pulp, pour the mixture through a strainer into a receptacle--just realize that, if you throw away that pulp, you're discarding a lot of nutrients.
You can use a food processor to make juice, by cutting the fruit into small patches and place them on the bowl of the processor. Then you turn it on, and wait for the fruit to show finely chopped substance.