Checking to see whether a String contains a particular substring

[Richard Robbins]

How does one determine whether a String object contains a certain substring? The regionMatches functions won't do it. I need something that determines whether a given string contains a substring without regard for what the substring start and end indices are.

[Bill Tripper]

Originally posted by Richard Robbins:
How does one determine whether a String object contains a certain substring? The regionMatches functions won't do it. I need something that determines whether a given string contains a substring without regard for what the substring start and end indices are.

How about:
stringOne.indexOf(stringTwo) >= 0