Variable Naming in Java

Which of the following is a valid variable name in Java?

• void

• r2d2

• 3d

• public

What is the first rule for naming variables in Java?

• Variables may not begin with a digit

• Variables may not contain punctuation characters

• Variables cannot contain spaces

• Variables cannot be reserved words

Which of the following is an exception to the punctuation rule for variable names?

• !

• _

• /

• ?

What is the fourth rule for naming variables in Java?

• Variables may not begin with a digit

• Variables may not contain punctuation characters

• Variables cannot contain spaces

• Variables cannot be reserved words

Which of the following is true about variable names in Java?

• Variables are case sensitive

• Variables are not case sensitive

• Variables can contain spaces

• Variables can be reserved words

Which of the following is an invalid variable name in Java?

• hello

• void

• r2d2

• my var

What is the second rule for naming variables in Java?

• Variables may not begin with a digit

• Variables may not contain punctuation characters

• Variables cannot contain spaces

• Variables cannot be reserved words

Which of the following is an exception to the punctuation rule for variable names?

• !

• _

• /

• ?

What is the third rule for naming variables in Java?

• Variables may not begin with a digit

• Variables may not contain punctuation characters

• Variables cannot contain spaces

• Variables cannot be reserved words

Which of the following is true about variable names in Java?

• Variables are case sensitive

• Variables are not case sensitive

• Variables can contain spaces

• Variables can be reserved words