Convert the lexical analyzer given in section 4.2 to java and modify it to recognize the following list of reserved words and return their respective token codes: for, 30; if, 31; else, 32; while, 33; do, 34; int, 35; float, 36; switch, 37.

i do not get the question.

the answer to your question would be something called hertz. the unit of measurement called a hertz, which is one cycle per second, is used to measure clock speed. within one cycle, your computer processes, refreshes, or updates itself to the changes that it is going through. in the case of computer clock speed, one hertz equals one tick per second. the clock speed of computers is usually measured in megahertz (mhz) or gigahertz (ghz)