They cannot store the value of a variable directly in memory. - They store a memory address of the variable. Unlike primitive data types, which are defined by Java.

Want to learn how to code but don't know where ... You can think of variables as labeled jars that store different types of data. While there are several kinds of variables, today we're only ...

However, this is just one type of variable in Java ... data. For instance, a constant is a variable whose value never changes. This is primarily useful for writing more readable code.

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