Boolean Object and boolean variable issue in JAVA

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走了就别回头了
走了就别回头了 2020-12-17 08:41

I declare a Boolean variable. For example Boolean dataVal=null;
Now if I execute the following code segment:

if(dataVal)
    System.out.prin         


        
6条回答
  •  爱一瞬间的悲伤
    2020-12-17 09:19

    When you try to evaluate Boolean object value jvm internally call booleanValue() on that object as you assign null to that object it will throw NullPointerException

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