Exam 98-388 topic 1 question 24 discussion

Actual exam question from Microsoft's 98-388

Question #: 24
Topic #: 1

You work as a Java programmer.
You need to convert a numeric String to a primitive double value.
What code segment should you use?

A. Double.valueOf(numberString);
B. double.parseDouble(numberString);
C. String.parseDouble(numberString);
D. Double.parseDouble(numberString);

Show Suggested Answer

Suggested Answer: D 🗳️

by examMan27 at June 3, 2020, 3:15 p.m.

Comments

Submit Cancel

examMan27

Highly Voted 5 years ago

D. Double.parseDouble(numberString);

upvoted 29 times

Abhitera

4 years, 4 months ago

Correct

upvoted 3 times

...

sam36

Highly Voted 5 years ago

D. Double.parseDouble(numberString);

upvoted 11 times

...

FearlessAIN

Most Recent 3 years, 1 month ago

The answer is D.

upvoted 1 times

...

avocadobelly

3 years, 3 months ago

Selected Answer: D

It's D

upvoted 3 times

...

3 4 5 6 7 8 9 10 String strObject = "134232.324221"; try{ double d = Double.parseDouble(strObject); // <<<<<< System.out.println("String to double: " + d); }catch(NumberFormatException nfe){ System.out.println("Invalid number"); }

upvoted 1 times

...

Gtidnevsg

4 years ago

In asks for primitive so b is correct

upvoted 3 times

samuraipizza26

3 years, 12 months ago

If we need to go back to a primitive type, we need to use a parse method defined by the corresponding Wrapper Class (D) is correct.

upvoted 2 times

...

Girul

3 years, 8 months ago

// Test it! String strObject = "134232.324221"; try{ double d = Double.parseDouble(strObject); System.out.println("String to double: " + d); }catch(NumberFormatException nfe){ System.out.println("Invalid number"); }

upvoted 1 times

...