Recursion Practice

What is returned as a result of the call mystery(4,6)?

• 2

• 3

• 4

• 1

Which of the following is the best definition of a recursive method?

• A method that iterates itself exactly 5 times.
• A method that invokes itself by name within the method.
• A method that will never iterate infinitely.
• A method that cannot be called more than once.

What is the returned value of recMethod(5)?

• 68
• 70
• 75
• 82

What is printed as a result of the call stringMaker("COMPSCI")?

• COMPSCI
  COMPSC
  COMPS
  COMP
  COM
  CO
  C
• COMPSCI
  OMPSCI
  MPSCI
  PSCI
  SCI
  CI
  I
• CO
  COM
  COMP
  COMPS
  COMPSC
  COMPSCI
• C
  CO
  COM
  COMP
  COMPS
  COMPSC
  COMPSCI

Will recursion(5) iterate infinitely? 

• Yes
• No

What value is returned as a result of the call mysterious(x)?

• x * (x+1)
• 2^x
• 2^(x-1)
• x³ +1

What is the returned value of digits(-24684)?

• 20
• 18
• 24
• 23

Which expression represents the result of calling recurs(11,4)? 

• x + y
• x * y
• x^y-2
• y^x+2

Will recursive(50) iterate infinitely?

• Yes
• No

What is the value of concatenation("Recursion")?

• Rcrion
•  Rcrio
• Rron
• Recson