Given this Java code:
int fst = 5;
int snd = 6;
if(fst == snd)
do something;
I want to know how Java will compare equality for this case. Will it use an XOR operation to check equality?
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Are you asking “what native machine code does this turn into?”? If so, the answer is “implementation-depdendent”.
However, if you want to know what JVM bytecode is used, just take a look at the resulting .class file (use e.g. javap to disassemble it).