Create a function to test whether the character unit is a valid PIN or not in the normal way. Valid PIN contains: 4 or 6 direct letters. Number letters only (0-9). There is no white space. Examples confirm ("121317") · - true confirm ("1234") - true confirm ("45135") → false IN JAVA

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Create a function to test whether the character unit is a valid PIN or not in the normal way.
Valid PIN contains:
4 or 6 direct letters.
Number letters only (0-9).
There is no white space.
Examples
confirm ("121317")
- true
confirm ("1234") -
- true
confirm ("45135")
- false
IN JAVA
Transcribed Image Text:Create a function to test whether the character unit is a valid PIN or not in the normal way. Valid PIN contains: 4 or 6 direct letters. Number letters only (0-9). There is no white space. Examples confirm ("121317") - true confirm ("1234") - - true confirm ("45135") - false IN JAVA
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