Shadow an instance variable by declaring a local variable of the same name directly or as part of an argument : Method Variable « Java Source And Data Type « SCJP

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SCJP » Java Source And Data Type » Method Variable

1.21.7.Shadow an instance variable by declaring a local variable of the same name directly or as part of an argument

class MainClass {

    static int size = 7;

    static void changeIt(int size) {

      size = size + 200;

      System.out.println("size in changeIt is " + size);

    }

    public static void main (String [] args) {

      MainClass f = new MainClass();

      System.out.println("size = " + size);

      changeIt(size);

      System.out.println("size after changeIt is " + size);

    }

  }

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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