Selenium Real time Interview Questions || Swap two Strings without using temp/third variable

Swap two Strings without using temp/third variable:

Algorithm:

1) Append second string to first string and
store in first string:
a = a + b

2) call the method substring(int beginindex, int endindex)
by passing beginindex as 0 and endindex as,

3) call the method substring(int beginindex) by passing
b string in a
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Selenium Framework with Page Object Model | E-Commerce Project
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