Introduce Explaining Variable

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If you have a complicated expression put them into temporary variables that explain what they do. This can help make code easier to read and understand.

if ( (platform.toUpperCase().indexOf("MAC") > -1) &&
(browser.toUpperCase().indexOf("IE") > -1) &&
wasInitialized() && resize > 0 )
{
  // do something
}

final boolean isMacOs     = platform.toUpperCase().indexOf("MAC") > -1;<br>
final boolean isIEBrowser = browser.toUpperCase().indexOf("IE")  > -1;<br>
final boolean wasResized  = resize > 0;<br><br>
if (isMacOs && isIEBrowser && wasInitialized() && wasResized)
{
  // do something
}