{"id":24416,"date":"2022-12-02T21:11:22","date_gmt":"2022-12-02T15:41:22","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-java-how-can-i-tell-if-one-of-my-array-string-values-is-null\/"},"modified":"2022-12-02T21:11:22","modified_gmt":"2022-12-02T15:41:22","slug":"solved-java-how-can-i-tell-if-one-of-my-array-string-values-is-null","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-java-how-can-i-tell-if-one-of-my-array-string-values-is-null\/","title":{"rendered":"[Solved] Java: How can I tell if one of my array String values is null?"},"content":{"rendered":"

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How can I tell if one of my values is\/are null? <\/p>\n<\/blockquote>\n

One way is to learn to read the stack trace that you are getting. (We could maybe help you with that, if you showed it to us.)<\/p>\n

Another way is to test the value to see if it is null.<\/p>\n

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Is there a test? <\/p>\n<\/blockquote>\n

Here is how you test a simple variable.<\/p>\n

    if (a == null) {\n         System.out.println(\"a is null\");\n    }\n<\/code><\/pre>\n
If you have an array whose elements could be null<\/code>, write a loop to test them.  (There are more elegant ways … but if you are learning, keep it simple.)<\/p>\n
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How did it get to be null? <\/p>\n<\/blockquote>\n
The two ways are:<\/p>\n