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Java Forum / General / January 2008Java
Hello, I am new to Java. I was asked to write the program that shows the maximum value of Character with uasge of MIN_VALUE. Could You please help me with that. Maybe You have got an example on how to use Constatnt fields. I have problems with that. Thanks > I am new to Java. I was asked to write the program that shows the > maximum value of Character with uasge of MIN_VALUE. Could You please > help me with that. Maybe You have got an example on how to use > Constatnt fields. I have problems with that. Sorry, I don't really understand what it is you want to do. I suggest you include the smallest possible version of your program that will compile and still shows the behavior you have a question about. Then it will become clearer what it is that you want and what can help you. Sidenote: Be aware that by the way you asked your question, one could assume that this is a homework assignment. People generally don't like being asked to do other people's homework, so you could get some heat. If you show that you have put some effort into trying to find a solution and ask a specific question about your approach, you will (presumably) get better response. regards /W On Dec 28, 12:27 pm, michalfabis...@gmail.com wrote: > Hello, > > I am new to Java. I was asked to write the program that shows the > maximum value of Character with uasge of MIN_VALUE. Could You please > help me with that. Maybe You have got an example on how to use > Constatnt fields. I have problems with that. Consider that char values are unsigned two-byte quantities and all operations on them are performed modulo 2**16. For further explanation, talk to your prof. michalfabisiak wrote > Hello, > [quoted text clipped - 4 lines] > > Thanks The documentation for the java.lang.Character class can be found at this link: <http://java.sun.com/javase/6/docs/api/java/lang/Character.html> The table titled 'Field Summary' contains a list of the public fields of the Character class. These are all declared public static final - in effect 'constant fields'. Because these fields are declared static you will not need a Character instance to use them. char c = java.lang.Character.MIN_VALUE; > The documentation for the java.lang.Character class > can be found at this link: [quoted text clipped - 9 lines] > > char c = java.lang.Character.MIN_VALUE; Because Character is in the java.lang package, you will not need a package reference to use it. char c = Character.MIN_VALUE;  SignatureLew > Jeff Higgins wrote: >> [quoted text clipped - 4 lines] > > char c = Character.MIN_VALUE; Oops! Thanks for the correction. michalfabisiak, I apologise for the misinformation. Please use the corrected syntax given by Lew. >michalfabisiak, I apologise for the misinformation. Your first answer was correct, because it will always work under Java SE. The »java.lang.« can be omitted only if there is no »Character.class« in the classpath. For example, when class Character {} is being added to a source file, this source file will still be perfectly legal Java, and your first solution will still work. It will not work anymore, when »java.lang.« is being omitted. When you do not know, whether someone has »Character.class« in his classpath or might add this later, the general answer uses »java.lang.Character« or »import java.lang.Character;« at the start of the compilation unit. >> michalfabisiak, I apologise for the misinformation. > [quoted text clipped - 13 lines] > »java.lang.Character« or »import java.lang.Character;« at the > start of the compilation unit. That is not correct. Classes are retrieved from the classpath based on the fully-qualified name (FQN). Unless the class is also "java.lang.Character", this situation will not occur, and if it is, using the FQN obviously is no use anyway. So ignore all that about the classpath. We are assuming that your class is not in the default package, and that your classpath does not include any classes in the default package. Such a situation is pathological and to be avoided anyway. (It's especially pathological to craft a classpath that includes classes in the default package that have the same simple name as API classes.) Just feel free to omit the "java.lang" package, or include it if you really want to. SignatureLew > So ignore all that about the classpath. > [quoted text clipped - 3 lines] > especially pathological to craft a classpath that includes classes in > the default package that have the same simple name as API classes.) Actually, even that is not an issue: <http://java.sun.com/javase/6/docs/technotes/tools/findingclasses.html> > The Java launcher, java, initiates the Java virtual machine. > The virtual machine searches for and loads classes in this order: > * Bootstrap classes - Classes that comprise the Java platform, > including the classes in rt.jar and several other important jar files. Thus, > # It is relatively difficult to accidentally "hide" or omit the bootstrap classes. So ignore all that about the classpath. SignatureLew >I am new to Java. I was asked to write the program that shows the >maximum value of Character with uasge of MIN_VALUE. Could You please >help me with that. Maybe You have got an example on how to use >Constatnt fields. I have problems with that. see http://mindprod.com/jgloss/constant.html SignatureRoedy Green Canadian Mind Products The Java Glossary http://mindprod.com Free MagazinesGet these publications absolutely FREE for up to 12 months. 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