Question: java program please 2. Read the Register Number and Mobile Number of a student. If the Register Number does not contain exactly 9 characters or

java program please

2. Read the Register Number and Mobile Number of a student. If the Register Number does not contain exactly 9 characters or if the Mobile Number does not contain exactly 10 characters, display appropriate error message. If the Mobile Number contains any character other than a digit, display appropriate error message. If the Register Number contains any character other than digits and alphabets, display appropriate error message. If they are valid, print the message "valid' else 'invalid

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