java.lang.Character codePointCount(CharSequence seq, int beginIndex, int endIndex)
Description
Make a note that the codePointCount method of Character class is static thus it should be accessed statically which means the we would be calling this method in this format:
Character.codePointCount(method args)
Non static method is usually called by just declaring method_name(argument) however in this case since the method is static, it should be called by appending the class name as suffix. We will be encountering a compilation problem if we call the java codePointCount() method non statically.
Notes:
The codePointCount(CharSequence seq, int beginIndex, int endIndex) method throws the following exception:
- NullPointerException – if seq is null.
- IndexOutOfBoundsException – if the beginIndex is negative, or endIndex is larger than the length of the given sequence, or beginIndex is larger than endIndex.
Method Syntax
public static int codePointCount(CharSequence seq, int beginIndex, int endIndex)
Method Argument
| Data Type | Parameter | Description |
|---|---|---|
| CharSequence | seq | the char array |
| int | beginIndex | the index to the first char of the text range. |
| int | endIndex | the index after the last char of the text range. |
Method Returns
The codePointCount(CharSequence seq, int beginIndex, int endIndex) method of Character class returns the number of Unicode code points in the specified text range.
Compatibility
Requires Java 1.5 and up
Java Character codePointCount(CharSequence seq, int beginIndex, int endIndex) Example
Below is a simple java example on the usage of codePointCount(CharSequence seq, int beginIndex, int endIndex) method of Character class.
package com.javatutorialhq.java.examples;
/*
* This example source code demonstrates the use of
* codePointCount(CharSequence seq, int beginIndex, int endIndex)
* method of Character class.
*/
public class CharacterCodePointCountCharSequenceExample {
public static void main(String[] args) {
// initialize a new CharSequence object
CharSequence cs = "This is a test string!";
// initialize beginIndex and endIndex
int beginIndex = 0;
int endIndex = cs.length();
// get the number of Unicode code points in the text
// range of the specified char sequence
int result = Character.codePointCount(cs, beginIndex,endIndex);
System.out.println("Result:"+result);
}
}
Sample Output
Below is the sample output when you run the above example.
