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java程序员面试试题及智力测试（Java programmers interview questions and intelligence tests）.doc

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java程序员面试试题及智力测试（Java programmers interview questions and intelligence tests）

java程序员面试试题及智力测试（Java programmers interview questions and intelligence tests） Interview example 1: hitting the mouse game begins now! Contestants include Ralph, Wiley and Paul. Ralph can hit the mouse 10 times in 10 seconds. Wiley can hit the mouse 20 times in 20 seconds. Paul can hit the mouse 5 times in 5 seconds. The time spent on each person is calculated as follows: from the first blow to the last. Are they tied? If not, who was the first to finish the 40 mouse? Analysis: N seconds click n mouse is actually began to hit the mouse when the first time, actually hit n-1 to N seconds, then hit 40 If the mouse, Ralph (40-1) / (9/10) =39/0.9 seconds, Wiley (40-1) / (19/20) =39/0.95 seconds, Paul (40-1) / (4/5) =39/0.8 seconds, so Wiley finished first. Answer: Wiley beat it first. The interview example is 2:100 dollars. Where is it? 3 friends checked into a hotel. At the checkout, the bill totals $3000. 3 friends at $1000 per person, and the $3000 shown to the waiter, commissioned him to give an account of the total station. But in the account, at the hotel to implement price concessions, the total station attendant returned to the $500, paid $2500. The waiter deducted $200 from the $500 refund and refunded only $300 to 3 guests. The 3 guests shared the $300, each bringing back $100. So, the 3 guests actually paid $900, and they paid $2700, plus $200 for the waiters $2900, so wheres the difference between the 100 dollars? Answer: this question is purely a word game, but if your mind is not clear enough, it might confuse you. The actual payment of $2700 would be $2500 of the actual income of the station, plus $200 deducted by the waiter. There is no reason to add $200 to the $2700, plus $300 back on the $2700, which makes sense because it amounts to $3000, which was originally given to the waiter. Interview example 3: there is a bug, split every 2 seconds. After splitting, 2 new bugs split after 2 seconds. If there was only one bug in a bottle, then 2 seconds after 2,