Character.isLowSurrogate() method in Java with examples
Last Updated :
06 Dec, 2018
The java.lang.Character.isLowSurrogate(char ch) is an inbuilt method in java which determines if the given char value is a Unicode low-surrogate code unit (also known as trailing-surrogate code unit). Such values do not represent characters by themselves but are used in the representation of supplementary characters in the UTF-16 encoding.
Syntax:
public static boolean isLowSurrogate(char ch)
Parameters: The function accepts one mandatory parameter ch which specifies the character to be tested.
Return Value: The function returns a boolean value. The value returned is True if the char value is between MIN_LOW_SURROGATE and MAX_LOW_SURROGATE inclusive, False otherwise.
Below programs illustrate the Character.isLowSurrogate() method:
Program 1:
import java.lang.*;
public class gfg {
public static void main(String[] args)
{
char c1 = '\udc25' , c2 = 'h' ;
boolean bool1 = Character.isLowSurrogate(c1);
System.out.println( "c1 is a Unicode low-surrogate ? " + bool1);
boolean bool2 = Character.isLowSurrogate(c2);
System.out.println(c2 + " is a Unicode low-surrogate ? " + bool2);
}
}
|
Output:
c1 is a Unicode low-surrogate ? true
h is a Unicode low-surrogate ? false
Program 2:
import java.lang.*;
public class gfg {
public static void main(String[] args)
{
char c1 = '\udc29' , c2 = 'x' ;
boolean bool1 = Character.isLowSurrogate(c1);
System.out.println( "c1 is a Unicode low-surrogate ? " + bool1);
boolean bool2 = Character.isLowSurrogate(c2);
System.out.println(c2 + " is a Unicode low-surrogate ? " + bool2);
}
}
|
Output:
c1 is a Unicode low-surrogate ? true
x is a Unicode low-surrogate ? false
Reference: https://docs.oracle.com/javase/7/docs/api/java/lang/Character.html#isLowSurrogate(char)
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