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    Is thrown when you try to convert a String to a numeric value, like an int, float, double, long, etc.

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Solutions on the web

via Oracle Community by 726965, 1 year ago
For input string: "null"
via Atlassian JIRA by Matt Ryall, 1 year ago
For input string: "null"
via Xamarin Bugzilla by bryan.moulton, 9 months ago
via GitHub by paulrohrbeck
, 2 years ago
via Google Groups by Simon Teles, 1 year ago
via Google Groups by Peter Neubauer, 8 months ago
For input string: "java.lang.NullPointerException"
java.lang.NumberFormatException: For input string: "null"	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)