public static boolean isHighSurrogate(char ch)

// Java program to illustrate the
// Character.isHighSurrogate() method
import java.lang.*;
  
public class gfg {
  
    public static void main(String[] args)
    {
  
        // create 2 char primitives c1, c2
        char c1 = '\u0a4f', c2 = '\ud8b4';
  
        // assign isHighSurrogate results of
        // c1, c2 to boolean primitives bool1, bool2
        boolean bool1 = Character.isHighSurrogate(c1);
        System.out.println("c1 is a Unicode"+
        "high-surrogate code unit ? " + bool1);
  
        boolean bool2 = Character.isHighSurrogate(c2);
        System.out.println("c2 is a Unicode"+ 
        "high-surrogate code unit ? " + bool2);
    }
}

c1 is a Unicodehigh-surrogate code unit ? false
c2 is a Unicodehigh-surrogate code unit ? true

// Java program to illustrate the
// Character.isHighSurrogate() method
import java.lang.*;
  
public class gfg {
  
    public static void main(String[] args)
    {
  
        // create 2 char primitives c1, c2
        char c1 = '\u0b9f', c2 = '\ud5d5';
  
        // assign isHighSurrogate results of
        // c1, c2 to boolean primitives bool1, bool2
        boolean bool1 = Character.isHighSurrogate(c1);
        System.out.println("c1 is a Unicode" + 
        "high-surrogate code unit ? " + bool1);
  
        boolean bool2 = Character.isHighSurrogate(c2);
        System.out.println("c2 is a Unicode" + 
        "high-surrogate code unit ? " + bool2);
    }
}

c1 is a Unicodehigh-surrogate code unit ? false
c2 is a Unicodehigh-surrogate code unit ? false