Engineering, 23.01.2020 20:31, stevenabramyan
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, throw an illegalargumentexception. if the mobile number contains any character other than a digit, raise a numberformatexception. if the register number contains any character other than digits and alphabets, throw a nosuchelementexception. if they are valid, print the message ‘valid’ else ‘invalid’.
Answers: 3
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Read the register number and mobile number of a student. if the register number does not contain exa...
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