#510 – Declaring More than One Local Variable On the Same Line

You typically declare a local variable by specifying its type, the name of the local variable and an optional initial value.

int j;
int i = 42;

You can declare more than one variable on the same line, as long as the variables all have the same type.  Each variable can optionally include an initialization.

int j, i = 42;      // Only i is assigned
string name = "Sean", motto = "Carpe Libri";
Dog d1, d2, d3;
Dog kirby = new Dog("Kirby", 12), jack = new Dog("Jack", 14);
dynamic thing1, thing2;

You can’t, however, declare multiple implicitly-typed variables on the same line.

            var i = 12, s = "Sean";   // Error: Implicitly-typed local variables cannot have multiple declarators
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About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

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