How do I search for two strings on the same line in Eclipse?

Mainly I want to search for all lines that contain XXX and YY开发者_开发知识库Y on the same line in Eclipse.

What would be the correct search expression for that?

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This regex should comply with your request:

(XXX.*YYY|YYY.*XXX)

Used under File Search, checking Regular expression.

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Use XXX*YYY in file search option. This will mean that any characters can come in between XXX and YYY.