I have been reading through the tutorial, and I saw a piece of code
that can be simplified. In "Step 4: Managing Events on the
Client" (http://code.google.com/webtoolkit/tutorials/1.6/
manageevents.html), the code sample in the third section (Responding
to user events) is as follows:
private void addStock() {
final String symbol = newSymbolTextBox.getText().toUpperCase().trim
();
if (!symbol.matches("^[0-9a-zA-Z\\.]{1,10}$")) {
Window.alert("'" + symbol + "' is not a valid symbol.");
newSymbolTextBox.selectAll();
return;
}
// ...
}
The first line of code gets an upper-case string, but the second line
checks for both capital and small letters. The check for small letters
is clearly not useful.
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