1. Set fields with instrospection - Problem with String.valueOf(String) stackoverflow.comI'm setting public fields of the Object 'this' via reflection. Both the field name and the value are given as String. I use several various field types: Boolean, Integer, Float, Double, ... |
2. String valueOf vs concatenation with empty string stackoverflow.comI am working in Java code optimization. THE PROBLEM IS I'm unclear about the difference between String.valueOf or the +"" sign. I'd explain my problem as: |
3. ""+x versus String.valueOf(x) coderanch.comA while ago I wandered about the same problem and did some searching around. The conclusion was not using x + "". Both String.valueOf(x) and Integer.toString(x) where considered equally good, while the first one is more consistent for different types and the second one is slightly more readable. So we settled for String.valueOf(x). |
4. String.valueOf() and String.copyValueOf() coderanch.com |
5. importance of String.valueOf(Object) coderanch.comWell, what's in the map? Your first code assumes that the values in the map are all Strings, and so casts to String. If you're right, this is fine. But if any values in teh map are not Strings, the cast fails, and you get an exception. The second code makes no assumptions about whether the values are Strings or something ... |
6. I can't get my "String.valueof()" working forums.oracle.comThat is not the exact complete error message. If you think it is, then you need to back away from the IDE and compile on the command line. Also, you were supposed to paste it, not retype it incorrectly. It's telling you exactly what's wrong though. You're trying to call a method on the String class called valueof that takes a ... |
7. where is String.valueOf(short s)? forums.oracle.comI just noticed the strangest thing. The method: "String String.valueOf(short s);" is missing from the [official API|http://java.sun.com/javase/6/docs/api/java/lang/String.html] I see how "best match" method overloading works. But then why have String String.valueOf(int i); String String.valueOf(long l); but then not: String String.valueOf(short s); If asked in an interview I would have to answer the reason is that operations on a "long" are not ... |
8. someEnum.valueOf(String)??? forums.oracle.com |
9. String valueOf(1.0E-4) is not 0.0001 forums.oracle.comWell, I did try it, and it seemed doing what I wanted with one exception: If the number looks like an integer, for example 10, I would like my valueOf method to return 10.0 as the String.valueOf method does. How can I accomplish this easily without having to check if my String contains a decimal point? Thanks for looking at this! ... |
10. Help with string.valueof forums.oracle.comso in the employee class i need to chnage the getDate method? Well, it's your class, so it's up to you to know what that method is supposed to do, to give it a signature that allows it to be called with the data to do its job, and the pass it the right data when you call it. Don't think ... |