java.lang.NumberFormatException: For input string: " "

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Samebug tips

,

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.

,

Java does not handle IPv6 nameservers before 1.8.0_60. Upgrade to the latest JVM.

Solutions on the web

via Coderanch by Jherald Lacambra, 1 year ago
For input string: " "
via Coderanch by jay smith, 1 year ago
For input string: ""
via GitHub by joongonn
, 2 years ago
For input string: "command"
via Coderanch by Campbell Ritchie, 1 year ago
via Google Groups by Paul Hastings, 1 year ago
For input string: ""
java.lang.NumberFormatException: For input string: " "
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
at java.lang.Integer.parseInt(Integer.java)
at java.lang.Integer.parseInt(Integer.java:518)
at mypackage.Calculator$16.actionPerformed(Calculator.java:183)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1786)
at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1839)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:245)
at java.awt.Component.processMouseEvent(Component.java:5100)
at java.awt.Component.processEvent(Component.java:4897)
at java.awt.Container.processEvent(Container.java:1569)
at java.awt.Component.dispatchEventImpl(Component.java:3615)
at java.awt.Container.dispatchEventImpl(Container.java:1627)
at java.awt.Component.dispatchEvent(Component.java)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3198)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128)
at java.awt.Container.dispatchEventImpl(Container.java:1613)
at java.awt.Component.dispatchEvent(Component.java)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:458)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)

Users with the same issue

4 times, 6 months ago
8 times, 9 months ago
Samebug visitor profile picture
Unknown user
Once, 3 days ago
Samebug visitor profile picture
Unknown user
Once, 1 week ago
Once, 1 month ago

Write tip

Know the solutions? Share your knowledge to help other developers to debug faster.