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Type: Posts; User: Norm

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  1. [SOLVED] Re: NullPointerException when using methods to find matching chars in two arrays.

    Why don't IDEs and compilers give warnings for shadowed variable definitions?
    So many students have that problem.
  2. [SOLVED] Re: NullPointerException when using methods to find matching chars in two arrays.

    This error message says you are trying to use a variable with a null value at line 52.
    Look at line 52 and see what variable is null and backtrack to see why it does not have a valid value.
    If you...
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