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  1. ,

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

  2. ,

    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.

Solutions on the web

via GitHub by GoogleCodeExporter
, 2 years ago
This exception has no message.
via Coderanch by Rohit Kumar, 1 year ago
This exception has no message.
via Coderanch by Chan Ag, 9 months ago
via https://bugzilla.redhat.com/bugzilla/ by Eiichi Nagai, 1 year ago
via GitHub by Baz2013
, 1 year ago
java.lang.NumberFormatException: For input string: ""	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)	at java.lang.Integer.parseInt(Integer.java:592)	at java.lang.Integer.parseInt(Integer.java:615)	at edu.bonn.cs.iv.bonnmotion.models.ManhattanGrid.parseArg(ManhattanGrid.java:422)	at edu.bonn.cs.iv.bonnmotion.App.parseArg(App.java:60)	at edu.bonn.cs.iv.bonnmotion.App.parse(App.java:52)	at edu.bonn.cs.iv.bonnmotion.Scenario.go(Scenario.java:731)	at edu.bonn.cs.iv.bonnmotion.models.ManhattanGrid.go(ManhattanGrid.java:124)	at edu.bonn.cs.iv.bonnmotion.models.ManhattanGrid.(ManhattanGrid.java:114)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)	at edu.bonn.cs.iv.bonnmotion.run.BM.go(BM.java:267)	at edu.bonn.cs.iv.bonnmotion.run.BM.main(BM.java:296)