Great basketball players know how to jump higher, not only basketballs players, but athletes in general. If you want to be a good athlete , it is important that you must learn how to jump higher. The most important thing to be able to jump higher is to increase vertical leap. You need to have a good body condition to be able to do so. You can engage yourself with different cardiovascular training like jogging. You can also check the gym for cardio-devices. The real deal about the cardiovascular training is to get your body into a good health to be ready for exercises. 
With diet, you can also learn to jump higher than what you can do before. Even if you are into going to the gym, you still have to practice the right diet. The importance of diet is to lessen the weight of your body to be able to jump higher.
If you really want to learn on how to jump higher, you must be serious with your work out and your diet, you can also try more techniques on how to jump higher. You have to train yourself everyday and have the right jumping exercises and the right body endurance.
Most athletes would always ask their trainers and coaches on 