Java Variable A variable is a location in memory (storage area) to hold data.

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Java Variable
A variable is a location in memory (storage area) to hold data.
In simple terms, it is a storage place that has some memory allocated to it. Basically, a variable is used to store data.
To indicate the storage area, each variable should be given a unique name (identifier).
A variable name can consist of alphabets (both upper and lower case), numbers, and the underscore ‘_’ character. However, the name must not start with a number.

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