jonadv
commented
3 years ago Great list, thanks. Small addition on the string comparisons:
"the result of "abc"+"d" is already a new String, not the one from String pool"
Writing "abcd" =="abc" +"d" will actually get the same string out of the pool and therefor compile to true, because the latter being compile time constants. However if "d" was wrapped in a (not final) variable, it would create a new String at runtime indeed and result to false.
It is really helpful to me. I was expecting this summary, felt to write of my own but luckily I got your post. Thank you so much..I am preparing for OCA 8 just after a couple of days I will be appearing. And It boosted my preparation thankyou