Which scanner class method would you use to read a double as input?
Understand the Problem
The question asks which method from the Scanner class is the correct one for reading a double value from the input stream. We need to identify the appropriate method name from the given options.
Answer
nextDouble()
To read a double as input using the Scanner class in Java, you would use the nextDouble() method.
Answer for screen readers
To read a double as input using the Scanner class in Java, you would use the nextDouble() method.
More Information
The nextDouble() method reads the next token from the input as a double-precision floating-point value.
Tips
A common mistake is to use the wrong method, such as nextInt() for integers or nextFloat() for floats, when you need to read a double. Another mistake is not handling the InputMismatchException, which occurs if the next token is not a valid double.
Sources
- Solved 11. Which Scanner class method would you use to read - chegg.com
- Java Scanner nextDouble() Method - TutorialsPoint - tutorialspoint.com
- Java User Input (Scanner class) - W3Schools - w3schools.com
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