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Java Forum / General / December 2006Chr function
Hello everybody, Visual Basic has this function: Chr(2) that is the 0x2 char How can I get it in java? thank you bye > Hello everybody, > [quoted text clipped - 3 lines] > > How can I get it in java? For the benefit of those who are not familiar with VB, you should have explained that the Chr() function takes a integer representing a char code (which is either ASCII or ANSI, not sure), and returns the corresponding character. In Java, you can bypass that function altogether, and do something like: char myChar = 2; Which declares a character called "myChar", and assigns it the value 2. It can simultaneously be thought of as representing the natural number 2, and the character whose unicode is 2. - Oliver >> Hello everybody, >> [quoted text clipped - 16 lines] > value 2. It can simultaneously be thought of as representing the > natural number 2, and the character whose unicode is 2. Note that applying this same conversion to an arbitrary integer requires a cast: char myChar = (int) i; since the range of int exceeds that of char. > >> Hello everybody, > >> [quoted text clipped - 23 lines] > > since the range of int exceeds that of char. I think you meant to do char myChar = (char) i; // whereas i is an integer; >> Note that applying this same conversion to an arbitrary integer requires >> a [quoted text clipped - 7 lines] > > char myChar = (char) i; // whereas i is an integer; You are of course correct. > >> Hello everybody, > >> [quoted text clipped - 23 lines] > > since the range of int exceeds that of char. Actually, now that I think about it....you don't need a cast at all. It will automatically accept any number from 0-65535 without a cast. >> char myChar = (char) i; >> [quoted text clipped - 3 lines] > > It will automatically accept any number from 0-65535 without a cast. Which cannot be determined at compile time. You need the cast. - Lew > >> char myChar = (char) i; > >> [quoted text clipped - 7 lines] > > - Lew char myChar = 2; //as stated a few messages up works, that's what I was referring to int a = 123; char myChar2 = (char) 2; //does require a cast Just to clarify. >> >> char myChar = (char) i; >> >> [quoted text clipped - 13 lines] > > Just to clarify. I'm guessing you meant: int a = 123; char myChar2 = (char) a; //does require a cast =) - Oliver > >> >> char myChar = (char) i; > >> >> [quoted text clipped - 22 lines] > > - Oliver Absolutely right, thanks for the help. ;) >> >> Hello everybody, >> >> [quoted text clipped - 26 lines] > > Actually, now that I think about it....you don't need a cast at all. You do when using a variable. > Hello everybody, > [quoted text clipped - 3 lines] > > How can I get it in java? (char) 2  Signaturesimon@jasmine.org.uk (Simon Brooke) http://www.jasmine.org.uk/~simon/ ;; lovely alternative to rice. > Hello everybody, > [quoted text clipped - 6 lines] > thank you > bye No function necessary: char ch = '\u0002'; The \u notation requires a 4-digit hex number that represents a UTF-16 Unicode code unit. For Unicode code points in the supplementary character planes, you must use a CharSequence, typically a String, with the UTF-16 surrogate pairs: String str = "\uXXXX\uYYYY"; // XXXX is a leading surrogate value; YYYY is a trailing surrogate value Regards, John O'Conner Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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