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Java enum valueOf uppercase or lowercase - does it matter when I use enum value of?
1 answers
2 points
Does the size of letter matters when I use enum valueOf() method?
For example:
xxxxxxxxxx1
enum CODE_STATUS {2
FETCHED,3
SENT4
}Can I use lowercase letters like "sent" when I use:
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CODE_STATUS status = CODE_STATUS.valueOf("sent");Or do I need to use exatch match?
1 answer
3 points
Exact match is required (example 1), if not then we will get exception (example 2).
Example 1
xxxxxxxxxx1
public class EnumValueOfExample1 {2
3
enum CODE_STATUS {4
FETCHED,5
SENT6
}7
8
public static void main(String[] args) {9
10
// ok by exactly matching the enum letters11
CODE_STATUS status = CODE_STATUS.valueOf("SENT");12
System.out.println(status);13
}14
}Output:
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SENTExample 2 - exception
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public class EnumValueOfExample2 {2
3
enum CODE_STATUS {4
FETCHED,5
SENT6
}7
8
public static void main(String[] args) {9
10
// Exception in thread "main" java.lang.IllegalArgumentException:11
// No enum constant12
// examples.EnumValueOfExample.CODE_STATUS.sent13
CODE_STATUS statusByLowercase = CODE_STATUS.valueOf("sent");14
System.out.println(statusByLowercase);15
}16
}xxxxxxxxxx1
Exception in thread "main" java.lang.IllegalArgumentException: 2
No enum constant examples.EnumValueOfExample2.CODE_STATUS.sent3
at java.lang.Enum.valueOf(Enum.java:238)4
at examples.EnumValueOfExample2$CODE_STATUS.valueOf(EnumValueOfExample2.java:5)5
at examples.EnumValueOfExample2.main(EnumValueOfExample2.java:15)Reference
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