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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 Coderanch by naved momin, 1 year ago
For input string: "thee"
via Coderanch by Mike Oxenfire, 1 year ago
For input string: "shirt "
via GitHub by DallonTG
, 2 years ago
via Apache's JIRA Issue Tracker by Hao Xia, 1 year ago
via ws-users by Jochen Wiedmann, 2 years ago
For input string: "Client"
via ws-users by mith86, 1 year ago
For input string: "Client"
java.lang.NumberFormatException: For input string: "thee"	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)	at java.lang.Integer.parseInt(Integer.java:449)	at java.lang.Integer.parseInt(Integer.java:499)	at CalPer.setper(CalPer.java:13)	at CalPer.main(CalPer.java:45)