Java method names and variable name length up to how many characters ?

Java method names and variable name length up to how many characters ? Baidu did not find a clear answer. Seeking enlighten me !
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remember university teachers have said that java variable name character length limit
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length is no limit , but I believe that nobody should take the name of the variable will be very long now , see the name EENOW is the most important
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try it yourself chanting !
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this is not important now , it is important to take other people can understand the meaning of the line
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theoretically there is no limit to the length , but is generally known to see the name meaning, no more than 20 characters ! !
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no length limit , usually take simple articulate the meaning of the string. do not write a simple point others to see your code directly crash crash belch fart pull
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Available in the JLS find what
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no limit .
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seemingly no length limit
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this is not important now . The project can not get too long ah.
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this somewhat difficult ah

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this issue was not really meaning it
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I took over a project written by SB , the name long to die , just a method such as getLastAvailableMinuteIndexOfAvailableContinuousMinutesFromMinuteIndex (), a lot of this , I want to see dead !
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see class class file format definition , method names usually use two bytes in length preservation, two bytes can represent a maximum length of 65535
So, the maximum length of the method name 65535
Here I'm not sure , should generally speaking Class class numbers in the file types are generally unsigned type
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add, is the character length , as in the end is 2 ^ 16 -1 or 2 ^ 17 -1, which was your own research