I have a TextArea with enter separated values:
For Example:
Value1 Value2 Value3 Value4 Value5
Is there a fast way to put them in a String array
String[] newStringArray = ???
-
"new line separated values" would have been clearer than enter separated valuesAmarghosh– Amarghosh2010-06-02 09:55:35 +00:00Commented Jun 2, 2010 at 9:55
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2 Answers
Use String.split(). If your TextArea is named textArea, do this:
String[] values = textArea.getText().split("\n");
2 Comments
Joachim Sauer
Use
.split("\n+") if the values can be separated by empty lines as well.
jasonmp85
+1.
String.split() takes a regex as its first argument. If you've not come across them before, they're well worth learning. It's something I resisted learning for a while and now that I know them well I use them every single day.You want to use String.split(String regex):
Returns: the array of strings computed by splitting this string around matches of the given regular expression
So, perhaps something like this:
String[] newStringArray = textAreaContent.split("\n");
This splits textAreaContent string around matches of "\n", which is the normalized newline separator for Swing text editors (as specified in javax.swing.text.DefaultEditorKit API):
[...] while the document is in memory, the
"\n"character is used to define a newline, regardless of how the newline is defined when the document is on disk. Therefore, for searching purposes,"\n"should always be used.
The regular expression can always be worked out for your specific need (e.g. how do you want to handle multiple blank lines?) but this method does what you need.
Examples
String[] parts = "xx;yyy;z".split(";");
for (String part : parts) {
System.out.println("<" + part + ">");
}
This prints:
<xx>
<yyy>
<z>
This one ignores multiple blank lines:
String[] lines = "\n\nLine1\n\n\nLine2\nLine3".trim().split("\n+");
for (String line : lines) {
System.out.println("<" + line + ">");
}
This prints:
<Line1>
<Line2>
<Line3>
answered Jun 2, 2010 at 9:51
polygenelubricants
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1 Comment
jasonmp85
The
DefaultEditorKit documentation (java.sun.com/javase/6/docs/api/javax/swing/text/…) would suggest that line endings from a TextArea are normalized to '\n'.