We have not shown the Bytecode the main() method. A careful scrutiny of the Bytecode will tell
you that:
c
iload_0 represents the first invocation argument and it is pushed on the operand stack.
c
iconst_1 represents a constant value 1, pushed on the operand stack.
c
if_icmple19 represents “compare the top two operands on the operand stack and jumps to
instruction 19 if the first operand is less than or equal to the second”.
c
isub subtracts the TOS from the second from TOS and leaves the result on the stack. ...
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