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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.

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java.lang.NumberFormatException: For input string: "1.6"	at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)	at java.lang.Integer.parseInt(Integer.java:492)	at java.lang.Integer.parseInt(Integer.java:527)	at U2_A8_A.Naseer.jButton1ActionPerformed(Naseer.java:147)	at U2_A8_A.Naseer.access$100(Naseer.java:16)	at U2_A8_A.Naseer$2.actionPerformed(Naseer.java:76)	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)	at java.awt.Component.processMouseEvent(Component.java:6516)	at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)	at java.awt.Component.processEvent(Component.java:6281)	at java.awt.Container.processEvent(Container.java:2229)	at java.awt.Component.dispatchEventImpl(Component.java:4872)	at java.awt.Container.dispatchEventImpl(Container.java:2287)	at java.awt.Component.dispatchEvent(Component.java:4698)	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)	at java.awt.Container.dispatchEventImpl(Container.java:2273)	at java.awt.Window.dispatchEventImpl(Window.java:2719)	at java.awt.Component.dispatchEvent(Component.java:4698)	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:747)	at java.awt.EventQueue.access$300(EventQueue.java:103)	at java.awt.EventQueue$3.run(EventQueue.java:706)	at java.awt.EventQueue$3.run(EventQueue.java:704)	at java.security.AccessController.doPrivileged(Native Method)	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)	at java.awt.EventQueue$4.run(EventQueue.java:720)	at java.awt.EventQueue$4.run(EventQueue.java:718)	at java.security.AccessController.doPrivileged(Native Method)	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)	at java.awt.EventQueue.dispatchEvent(EventQueue.java:717)	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)	at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)