Question

Which of the following is not a valid identifier in java

1 point

_age

$$amount

8thClass

nullValue

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Answer 1

8thClass is not a valid identifier as identifier name must not start with a digit.

I hope you understood.

Answer 2

Answer:

8thClass

Explanation:

• We know that numerical figures are not considered valid identifiers in java.
• The valid identifiers must letter, underscore, or currency symbols.

In the given question,

1. "_age" starts with an underscore which makes it a valid identifier.
2. "$$amount" starts with the symbol of a currency, hence it is a valid identifier.
3. "nullValue" begins with a letter which means that it is a valid identifier as well.
4. "8thClass" starts with a numerical value, hence it is not a valid identifier.

Hence, "8thClass" is not a valid identifier in java.

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