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  1. ,

    You try to parse a String that contains non-numeric characters to an int. The string must contain decimal characters only, optionally beginning with a + or - sign.

  2. ,

    Can occur when you try to convert a String to a numeric value but the String is not well formatted for the conversion.

Solutions on the web

via Oracle Community by 807553, 1 year ago
100 //the 100 is the age it is reading in from the file
via Oracle Community by 843833, 2 years ago
via Oracle Community by 807593, 1 year ago
98, 93, 54, 32, 65, 12, 9, 94, 88, 84, 83, 80, 19, 100, 67, 79, 76, 89, 95, 92, 45, 57, 87, 90, 100
via Oracle Community by 807546, 1 year ago
numbers // name of input file
via linuxquestions.org by Unknown author, 2 years ago
java.lang.NumberFormatException: 100 //the 100 is the age it is reading in from the file	at java.lang.Integer.parseInt(Integer.java:414)	at java.lang.Integer.parseInt(Integer.java:454)	at Student.readStudent(Student.java:49)