Java – which is faster, equalsignorecase or comparetoignorecase

In a Java application, suppose I can choose the following comparison method

equalsIgnoreCase(String anotherString)

compareToIgnoreCase(String str)

Which is faster?

Solution

Equalsignorecase can be much faster For example, consider two strings that start with the same 10000 characters - but one of the strings ends with an extra character Equalsignorecase can return immediately; Comparetoignorecase must iterate to the end of the string to see the difference

But generally speaking, I will choose to better express your intention This is also good for performance: suppose I say equalsignorecase is at least as fast as comparetoignorecase, which means you should use it as much as possible - if you need actual sorting, you must use comparetoignorecase