variable in ruby

Variables are temporal space for assigning a value in programs.It is like when we assign value in some variable in algebraic equation back in schools.In ruby we can assign any value in to variable.

Here x = 10 that means a value of 10 is assigned to variable x and y is assigned a value of 20.When a variable assigned with a particular type of object the variable also act a like type of that object so when we call "x.class" it will return fixnum. When we call variable that is not initialized,it will return with message uninitialized local variable z.

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