本文探讨了Java中逻辑判断语句的使用及其可能导致的异常情况，通过具体实例展示了如何正确处理字符串值为空或长度为零的问题，强调了表达式AND在顺序执行中的重要性。
Work by Jianfei is licensed under a Creative Commons wei 3.0 Unported License.
It's better to take a look this code line in below, before we using a judgement code statement to verify a string value
1
:
if
( ( objectA.getStringValue()
!=
null
)
&&
(objectA.getStringValue().length()
!=
0
) )
2 : if (objectA.getStringValue().length() != 0 ) && ( objectA.getStringValue() != null
2 : if (objectA.getStringValue().length() != 0 ) && ( objectA.getStringValue() != null
After run those code command in java, you will see an exception for code line 1 . But the code line 2 is passed. So the
sequential execution in java for expression AND is very important for us.
Work by Jianfei is licensed under a Creative Commons wei 3.0 Unported License.
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