In Java (and related languages such as Scala), java.lang.CharSequence is an interface to sequences of character values.
For more information, see the Java 8 specification of CharSequence.
Questions tagged [charsequence]
146 questions
462
votes
9 answers
CharSequence VS String in Java?
Programming in Android, most of the text values are expected in CharSequence.
Why is that? What is the benefit, and what are the main impacts of using CharSequence over String?
What are the main differences, and what issues are expected, while using…
Bite code
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323
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6 answers
246
votes
6 answers
How to convert CharSequence to String?
How can I convert a Java CharSequence to a String?
Belgi
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110
votes
8 answers
Exact difference between CharSequence and String in java
I read this previous post. Can any one say what the exact difference between CharSequence and String is, other than the fact that String implements CharSequence and that String is a sequence of character? For example:
CharSequence obj =…
Amith
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79
votes
3 answers
ArrayList to CharSequence[]
What would be the easiest way to make a CharSequence[] out of ArrayList?
Sure I could iterate through every ArrayList item and copy to CharSequence array, but maybe there is better/faster way?
Laimoncijus
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75
votes
5 answers
How to merge some spannable objects?
I divide a spannable object into 3 parts, do different operations, and then I need to merge them.
Spannable str = editText.getText();
Spannable selectionSpannable = new SpannableStringBuilder(str, selectionStart, selectionEnd);
Spannable…
Eugene
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36
votes
7 answers
CharSequence to int
Is there a Way to converte a Charsequence or a String to an Ingeter?
CharSequence cs = "123";
int number = (int) cs;
I'm a Noob. Solution:
CharSequence cs = "123";
int number = Integer.parseInt(cs);
passsy
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31
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3 answers
Generic OR instead of AND
Is it possible to generically parameterize a method accepting EITHER ClassA OR InterfaceB ?
Does Not Compile Due to | Pseudocode
public void orDoer(T someData){ // ... }
i.e. instead of writing multiple method…
Cel
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30
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6 answers
Why String.replaceAll() in java requires 4 slashes "\\\\" in regex to actually replace "\"?
I recently noticed that, String.replaceAll(regex,replacement) behaves very weirdly when it comes to the escape-character "\"(slash)
For example consider there is a string with filepath - String text = "E:\\dummypath"
and we want to replace the "\\"…
Bharath
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28
votes
7 answers
Most efficient way to convert a single char to a CharSequence
What's the most efficient way to pass a single char to a method expecting a CharSequence?
This is what I've got:
textView.setText(new String(new char[] {c} ));
According to the answers given here, this is a sensible way of doing it where the input…
Graham Borland
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5 answers
When to use CharSequence in an API
I'm designing a public interface (API) for a package. I wonder, should I use CharSequence generally instead of String. (I'm mainly talking about the public interfaces).
Are there any drawbacks of doing so? Is it considered a good practice?
What…
vbence
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23
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6 answers
Android, how to populate a CharSequence array dynamically (not initializing?)
How do I change something like this:
CharSequence cs[] = { "foo", "bar" };
to:
CharSequence cs[];
cs.add("foo"); // this is wrong...
cs.add("bar"); // this is wrong...
MarcoS
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22
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4 answers
R.string.value Help android notification
whats the deal with
CharSequence contentTitle = R.string.value;
Error cannot convert from int to CharSequence. Is there a way around this or am i missing something?
i tried
String s = R.string.value + "";
CharSequence contentTitle = s;
it returns…
Simon
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20
votes
1 answer
Choosing between CharSequence and String for an API
A String is-a CharSequence. Many methods in the Java library accept CharSequence so they operate more generally. Some classe have a String method (for example, Writer.write(String)) and also implement Appendable with an equivalent CharSequence…
Raedwald
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3 answers
string to charsequence
Can somebody please show me a bit of code to convert a string to charsequence?
user611089