330 Java Tips.pdf - FTP Server

String, text, numbers, I/O I part
Answer: Try this:
String a = "This is a\nmultiline string"
A "\n" stands for a line feed. Take a look at the Java language specification
(downloadable on Sun's site), it has a section about strings.
Answer2: You mean like this?
String a = "" +
" " +
" this is html." +
" " +
"";
I am doing some servlet programming and I need to include a few " in a string.
How can I do this?
Answer: By using the escape character \ like so:
String s = "\"";
I cannot find the method to convert a binary number to an int. I used
Integer.toBinaryString to get a decimal to binary but I don't know how to to convert it
back.
Answer: Try using Integer.parseInt(String s, int radix) with radix = 2
that should do your job.
How do I launch a native Document by its Associated MIME Type? For example,
I would like to ask the 'operating system' what application is associated with .DOC
and then launch it.
Answer: On WinNt,
String docName = "c:\\someyourdir\\nameofdoc.doc";
Runtime.getRuntime().exec("cmd.exe /c "+docName);
Q: How do I indicate Unicode characters that cannot be represented in ASCII,
such as ö?
Answer: from "Java Tutorial
(http://java.sun.com/docs/books/tutorial/i18n/text/convertintro.html)
"To indicate Unicode characters that cannot be represented in ASCII, such as o, we
used the \uXXXX escape sequence. Each X in the escape sequence is a
hexadecimal digit. The following example shows how to indicate the o character with
an escape sequence:
String str = "\u00F6";
char c = '\u00F6';
Character letter = new Character ('\u00F6'); "
When I tried to read one string representing boolean value and convert it into
boolean it didn't work. Finally I found that Java API has a bug!
I wrote the program that uses redaing ini file settings for initialization. All settings in a
file are strings. I am converting them to appropriate type during reading. When I tried
to read one string representing boolean value and convert it into boolean it didn't
work. Finally I found that Java API has a bag:
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