- A23.0
- B1112.0
- C32.0
- D24.0
Functions / Methods in Programming Languages - Quiz
- ALong wrapper class
- B character wrapper class
- CBoolean wrapper class
- DNone of these
- ANegative
- BPositive
- CInfinite
- DFixed
- ACall by reference
- BCall by value
- CCall by argument
- DCall by method
- AInteger wrapper class
- BCharacter wrapper class
- CBoolean wrapper class
- DNone of these
- Anext()
- BnextLine()
- CNext()
- DnextString()
- Achar check()
- Bvoid check (int x)
- Ccheck (int x)
- Dchar check (int x)
- APOSI
- BPOS
- CMPO
- DMPOS
- AImpure method
- BPure method
- CPrimitive method
- DUser defined method
- Abreak
- Bcontinue
- Creturn
- Dsend
Results:
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🟢 Correct Answers: 🔴 Wrong Answers:
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Quiz Analytics
Functions / Methods in Programming Languages - Quiz
Guest User
Time Taken: Questions: Answered: Not Answered:
Correct Answer:
Wrong Answer:
Percentage: %
- A. 23.0
- B. 1112.0
- C. 32.0
- D. 24.0
Remarks:
Explanation:
Let's analyze the given expression and the output of the Java Math functions:
Expression:
Math.pow(36, 0.5) + Math.cbrt(125) + Math.ceil(4.2) + Math.floor(7.9)
Explanation:
-
Math.pow(36, 0.5):
The
Math.pow(x, y)method returnsxraised to the power ofy.Math.pow(36, 0.5)calculates the square root of 36.√36 = 6.0 -
Math.cbrt(125):
The
Math.cbrt(x)method returns the cube root ofx.Math.cbrt(125)calculates the cube root of 125.∛125 = 5.0 -
Math.ceil(4.2):
The
Math.ceil(x)method returns the smallest integer greater than or equal tox.Math.ceil(4.2)returns the smallest integer greater than or equal to 4.2.Math.ceil(4.2) = 5.0 -
Math.floor(7.9):
The
Math.floor(x)method returns the largest integer less than or equal tox.Math.floor(7.9)returns the largest integer less than or equal to 7.9.Math.floor(7.9) = 7.0
Calculating the Sum:
Adding these values together:6.0 + 5.0 + 5.0 + 7.0 = 23.0
Conclusion:
The output of the expression is: 23.0
- A. Long wrapper class
- B. character wrapper class
- C. Boolean wrapper class
- D. None of these
Remarks:
Explanation:
The parseLong() function is a member of the Long wrapper class.
Explanation:
parseLong()is a static method provided by theLongwrapper class in Java.- It is used to convert a
Stringinto alongvalue.
Correct Answer:
a) Long wrapper class
- A. Negative
- B. Positive
- C. Infinite
- D. Fixed
Remarks:
Explanation:
Positive
- A. Call by reference
- B. Call by value
- C. Call by argument
- D. Call by method
Remarks:
Explanation:
Explanation:
In Call by Value, the values of the actual parameters are copied to the formal parameters. Any changes made to the formal parameters do not affect the actual parameters.
- A. Integer wrapper class
- B. Character wrapper class
- C. Boolean wrapper class
- D. None of these
Remarks:
Explanation:
Explanation:
parseInt() is a static method of the Integer wrapper class in Java.
It is used to convert a string to an integer.
- A. next()
- B. nextLine()
- C. Next()
- D. nextString()
Remarks:
Explanation:
nextLine()
Reason — nextLine() reads the input till the end of line so it can read a full sentence including spaces.
- A. char check()
- B. void check (int x)
- C. check (int x)
- D. char check (int x)
Remarks:
Explanation:
char check (int x)
Reason — The prototype of a function is written in the given syntax:
return_type method_name(arguments)
Thus, the method has the prototype given below:
char check (int x)
- A. POSI
- B. POS
- C. MPO
- D. MPOS
Remarks:
Explanation:
POS
Reason — The substring() method returns a substring beginning from the startindex and extending to the character at endIndex - 1. Since a string index begins at 0, the character at index 3 is 'P' and the character at index 5 (6-1 = 5) is 'S'. Thus, "POS" is extracted.
- A. Impure method
- B. Pure method
- C. Primitive method
- D. User defined method
Remarks:
Explanation:
Pure method
Reason — A method which does not modify the value of variables is termed as a pure method.
- A. break
- B. continue
- C. return
- D. send
Remarks:
Explanation: ✅ Answer: C) return