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On 2023-07-27 6:56 p.m., Peter Dow wrote:
I'm very much a beginner with Java and I'm having a problem understanding how scope works.
...

If you define a variable inside a block, it's only visible within that block.

Here, my variable "str" can't even be used in main() outside the "if" block where I defined it.

class MyClass
{
static public void main()
{
if (1 == 2)
{
String str = "abc"; // only visible in this "if" block
str = "def"; // ok, still in the "if" block
}
str = "ghi"; // str is not visible any more
}
}


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