When you call one of the Scanner class's methods to read a primitive value, such as nextInt or nextDouble, and then call the nextLine method to read a string, an annoying and hard-to-find problem can occur. True / False.

Question

Computers & Technology

Olivia King

27 September, 15:04

When you call one of the Scanner class's methods to read a primitive value, such as nextInt or nextDouble, and then call the nextLine method to read a string, an annoying and hard-to-find problem can occur. True / False.

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Answers (1)

Know the Answer?

Nevaeh Lam · Answer 1

The answer is true.

Explanation:

The scanner class's methods are the methods in java. util, which allows the user to read values of various types. If the nextLine is issued after a numeric read and the numeric value is at the end of the line, nextLine returns the empty string.

The problem occurs when you click the enter key which is a new line / n character. nextInt () has only the integer but skips the new line / n.

To solve this problem, you have to add the input. nextLine () after reading the int it will consume the / n.

Hence, make input. nextLine (); call after input. nextint (); which reads till end of life.