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if the string contained multiple whitespaces like a Tab , IndexOutOfBound Exception will come for it[0] part. Fix it by removing empty strings.
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Problem: if the string contained multiple whitespaces like a Tab , IndexOutOfBound Exception will come for it[0] part.
Cause: splitting with " " will create empty strings in the array. Accessing 0th index in empty string will cause the crash.
Solution: Fix it by removing empty strings before doing uppercase transformation.
for example,
input: "hello from this side"
exception : Exception in thread "main" java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
After fix: Hello From This Side