I want Ada programming language books. Could anyone post me any link for that?

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What is the difference between save and create method of activerecord?

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how do find the user exit for selected feild whatis the process and can u plz explain it

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I want to insert date in the form of yyyy-mm-dd... if any changes happen while inserting date format want to show error meg...any one can solve this..??

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This is a puzzle question .... The warden meets with 23 new prisoners when they arrive. He tells them, "You may meet today and plan a strategy. But after today, you will be in isolated cells and will have no communication with one another. "In the prison is a switch room, which contains two light switches labeled A and B, each of which can be in either the 'on' or the 'off' position. I am not telling you their present positions. The switches are not connected to anything. "After today, from time to time whenever I feel so inclined, I will select one prisoner at random and escort him to the switch room. This prisoner will select one of the two switches and reverse its position. He must move one, but only one of the switches. He can't move both but he can't move none either. Then he'll be led back to his cell. "No one else will enter the switch room until I lead the next prisoner there, and he'll be instructed to do the same thing. I'm going to choose prisoners at random. I may choose the same guy three times in a row, or I may jump around and come back. "But, given enough time, everyone will eventually visit the switch room as many times as everyone else. At any time anyone of you may declare to me, 'We have all visited the switch room.' and be 100% sure. "If it is true, then you will all be set free. If it is false, and somebody has not yet visited the switch room, you will be fed to the alligators." What is the strategy they come up with so that they can be free?

6 Answers  

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how to avoid java script validation in client side validation?

2 Answers  

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How do you initialize a static member of a class with return value of some function?

0 Answers   Yahoo,

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how we define two jobs have same name??is it exist??

0 Answers   CTS,

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What sysoption determines where the macro facility searches a specific catalog for complied macro?

0 Answers   GE,

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2. What do you mean by DHCP?

1 Answers  

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There are 3 jars containing two types of round marbles. One jar contains only red marbles, one jar contains only blue marbles and the third jar contains a mix of both red and blue marbles. Although the jars are labeled “red”, “blue” and “mixed” – all the jars are mislabeled. How many marbles would you have to pull out, and out of which jars, to find out how to fix the labels correctly?

1 Answers   Syntel,

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How to swap values between two variables without using a third variable?

24 Answers   HCL, TCS,

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