I have a String2. I want to check whether String2 exists in String1. String1’s length can be less or greater or equal than String2. Also String2 can be null or empty sometimes. How can I check this in my Java code?
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I have a String2. I want to check whether String2 exists in String1. String1’s length can be less or greater or equal than String2. Also String2 can be null or empty sometimes. How can I check this in my Java code?
The obvious answer is
String1.contains(String2);It will throw a NullPointerException if
String1is null. I would check thatString1is not null before trying the comparison; the other situations should handle as you would expect.