问个exception的问题# Java - 爪哇娇娃
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问个exception的问题
我有个java.lang.NullPointerException,然后throwalbe变量是e,我想在textarea里
面打出e的所有信息。我用e.getName()能把名字显示出来,为啥e.getMessage()显示是
null?
后面具体的信息,at line**,这些怎么显示出来么?不是getMessage()又是什么呢?
网上也查了,试过e.getCause().getMessage()也不行。这个是哪里有问题了?
java.lang.NullPointerException
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.
java:201)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
我有个java.lang.NullPointerException,然后throwalbe变量是e,我想在textarea里
面打出e的所有信息。我用e.getName()能把名字显示出来,为啥e.getMessage()显示是
null?
后面具体的信息,at line**,这些怎么显示出来么?不是getMessage()又是什么呢?
网上也查了,试过e.getCause().getMessage()也不行。这个是哪里有问题了?
java.lang.NullPointerException
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.
java:201)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)