Java simulation wechat grab red envelope example code

Java simply simulates the wechat red envelope grabbing function. In this example, 10 people grab a red envelope of 100 yuan. In order to be as fair as possible, Everyone's red envelope amount should be random (to ensure the uncertainty of the result, the order of grabbing red envelopes in this example matches the red envelope amount randomly), that is, there can be no case that part of the red envelopes are too small and most of them are too small. 9 nodes are randomly generated in the interval 0 ~ 100, and a total of 11 nodes plus 0 and 100 are sorted from small to large. The difference between nodes is the red envelope amount, which ensures that the sum of red envelope amounts is equal to 100.

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