2.Variable Data-Type and Operator

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

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