Scope
The scope of a name is the region of source code in which the name can be used.
Related concepts: NameLifetime
Closest Wikipedia entry: Scope (computer science)
Misconceptions about Scope7 documented Misconceptions
Check YourselfControlledLocalAccess
One can control access to local variables using access modifiers
ForVariableScopeBeyondLoop
The scope of variables declared in a for loop header extends beyond the loop
LoopBodyScopeImpliesLoopLifetime
Lifetime of variables declared in a loop body extends across all loop iterations
UnqualifiedNamesMustDiffer
The unqualified names of different classes must be different