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Which of these identifiers is invalid in Java?

  1. studentName

  2. student name

  3. student_name

  4. StudentName

Show answer & explanation

Correct answer

student name

Explanation

Identifiers cannot contain spaces.

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All 10 Java -identifiers and keywords questions

  1. 1.Which of the following is a valid Java identifier?
  2. 2.Which keyword is used to define a constant in Java?
  3. 3.Which of these identifiers is invalid in Java?
  4. 4.What is the correct keyword to read input from the console in Java?
  5. 5.Which of the following is NOT a Java keyword?
  6. 6.Which identifier is valid in Java?
  7. 7.Which keyword is used to terminate a loop in Java?
  8. 8.Which of these is a valid identifier for a variable?
  9. 9.Which keyword is used to define a method that belongs to the class rather than an instance?
  10. 10.Which of the following identifiers is invalid in Java?