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Java.lang.Character.codePointAt() Method
Description
The java.lang.Character.codePointAt(CharSequence seq, int index) returns the code point at the given index of the CharSequence.
If the char value at the given index in the CharSequence is in the high-surrogate range, the following index is less than the length of the CharSequence, and the char value at the following index is in the low-surrogate range, then the supplementary code point corresponding to this surrogate pair is returned. Otherwise, the char value at the given index is returned.
Declaration
Following is the declaration for java.lang.Character.codePointAt() method
public static int codePointAt(CharSequence seq, int index)
Parameters
seq − a sequence of char values (Unicode code units)
index − the index to the char values (Unicode code units) in the char array to be converted
Return Value
This method returns the Unicode code point at the given index.
Exception
NullPointerException − if seq is null.
IndexOutOfBoundsException − if the value index is negative or not less than seq.length().
Example
The following example shows the usage of lang.Character.codePointAt() method.
package com.tutorialspoint; import java.lang.*; public class CharacterDemo { public static void main(String[] args) { // create a CharSequence seq and assign value CharSequence seq = "Hello"; // create and assign value to index int index = 4; // create an int res int res; // assign result of codePointAt on seq at index to res res = Character.codePointAt(seq, index); String str = "Unicode code point is " + res; // print res value System.out.println( str ); } }
Let us compile and run the above program, this will produce the following result −
Unicode code point is 111