Which of the following are not valid Java identifiers and why?, questions help

Computer Science
Tutor: None Selected Time limit: 1 Day

Which of the following are not valid Java identifiers? Why?

  1. #no
  2. homework$
  3. LONG________NAME
  4. 3rdPartySoftware
Jan 18th, 2016

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  1. 3rdPartySoftware
  2. #no
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Jan 18th, 2016

Why not? Why cant use #no or 3rdPartySoftware?

Jan 18th, 2016

Because # is not allowed at the starting and  a number is also not allowed at the beginning

Jan 18th, 2016

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Jan 18th, 2016
Dec 5th, 2016
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