What Is The Reason For Putting $ Symbol Before The Variables?

1.	What Is The Reason For Putting $ Symbol Before The Variables?
Answer» The objective of putting $ SYMBOL before the variables is to ENSURE the difference between variables of POJO CLASSES and RULES. The objective of putting $ symbol before the variables is to ensure the difference between variables of POJO classes and Rules.

Answer»

The objective of putting $ SYMBOL before the variables is to ENSURE the difference between variables of POJO CLASSES and RULES.

The objective of putting $ symbol before the variables is to ensure the difference between variables of POJO classes and Rules.

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