2.Variable Data-Type and Operator #

After finish this chapter, student will be able to understand :

  • What’s variable used for?
  • How to declare variable?
  • Why we use variable?
  • What is data type?
  • How many types of data type?
  • How to know which data type should be used?
  • What is operator?
  • What types of operator?
  • Which operator should be used for?
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