Java Method invocation vs using a variable

Question

Recently I got into a discussion with my Team lead about using temp variables vs calling getter methods. I was of the opinion for a long time that, if I know that I was goin

Answer 1

Don't forget that by assigning the value of getSomething() to a variable rather than calling it twice, you are assuming that getSomething() would have returned the same thing the second time you called it. Perhaps that's a valid assumption in the scenario you are talking about, but there are times when it isn't.