How do I implement proper Exception handling in Java? -

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i writing simple program in java in response question. question says :

you fixing bug documents (represented string) failing converted proper xml. problem can occur because either:
a. characters fail in xml, or
b. documents passed in have length > 100 characters (they’re small documents)

it lists 5 characters need escaping (e.g. replace '">'" escape sequence;).

i've coded part replace special characters escapes, i'm not sure length.

if (length of string > 100) {     what? }

i thinking of maybe implementing try catch statement, that's used runtime exceptions correct? (null pointer, etc). in design standpoint, best way avoid bug while @ same time completing job of function?

you not handling exception here, rather should throw one:

private static final int max_length = 100; // ...  if (inputstring.length() > max_length) {   throw new illegalargumentexception(       string.format("string large. found %d characters, maximum %d.",           inputstring.length(), max_length)); }

this typical way notify user of method they've violated api. make sure method documentation specifies string cannot greater 100 characters.


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