我套你猴子qaq 2021-12-09 13:23 采纳率: 100%
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已结题

如何处理Exception in thread "AWT-EventQueue-0" java.lang.NumberFormatException: For input string: " "异常

javaswing编程时文本框内输入数字,若不输入内容就会报这个错误
我想问下如何捕获这个异常并处理它,我无法在方法中捕获他
Exception in thread "AWT-EventQueue-0" java.lang.NumberFormatException: For input string: " "
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at com.java.view.OutportRecordFrame.addGoodsRecordsActionPerformed(OutportRecordFrame.java:455)
at com.java.view.OutportRecordFrame.access$2(OutportRecordFrame.java:451)
at com.java.view.OutportRecordFrame$4.actionPerformed(OutportRecordFrame.java:270)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
看过其他博主的文章,这个异常是其他线程的异常无法在当前线程捕获它
有人可以教一下怎么做吗
  • 写回答

3条回答 默认 最新

  • CSDN专家-sinJack 2021-12-09 13:24
    关注

    NumberFormatException: For input string: " "
    获取到的是空字符串,转换异常。
    转换的时候,可以判断是否为空字符串,如果为空,就不做转换处理了,或者变为0.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论 编辑记录
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  • 系统已结题 12月17日
  • 已采纳回答 12月9日
  • 创建了问题 12月9日

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