Local variable has its scope limited to the method who declares it : Method Variable « Java Source And Data Type « SCJP

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SCJP » Java Source And Data Type » Method Variable 
1.21.3.Local variable has its scope limited to the method who declares it
class TestServer {
  public void logIn() {
    int count = 10;
  }
  public void doSomething(int i) {
    count = i;  // Won't compile! Can't access count outside
                // method logIn()
  }
}
 
count cannot be resolved
1.21.Method Variable
1.21.1.Local (Automatic/Stack/Method) Variables
1.21.2.local variables can be marked final.
1.21.3.Local variable has its scope limited to the method who declares it
1.21.4.It is legal to declare a local variable with the same name as an instance variable; this is called "shadowing".
1.21.5.Attempt to use a loop variable outside the code block of the loop.
1.21.6.Local Object References
1.21.7.Shadow an instance variable by declaring a local variable of the same name directly or as part of an argument
1.21.8.Shadowed variable is an object reference
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