Character.isValidCodePoint() Method in Java with Examples

The Character.isValidCodePoint() is an inbuilt method in java that determines whether the specified code point mentioned in the parameter is a valid Unicode code point value or not.

Syntax:

public static boolean isValidCodePoint(int codePoint)

Parameters: The parameter codePoint is of Integer datatype and refers to the unicode code point that is to be tested.

Return Values: This method returns true if the specified code point value is between MIN_CODE_POINT and MAX_CODE_POINT inclusive, false otherwise.

Below Programs illustrates the use of Character.isValidCodePoint() method:
Program 1:

// Java program to demonstrate the
// Character.isValidCodePoint() method
import java.lang.*;

public class gfg {

    public static void main(String[] args)
    {

        // Create 2 int primitives c1, c2 and assign values
        int c1 = 0x0125, c2 = 0x123fff;

        boolean bool1 = Character.isValidCodePoint(c1);
        boolean bool2 = Character.isValidCodePoint(c2);

        String str1 = "c1 is a valid Unicode code point is " + bool1;
        String str2 = "c2 is a valid Unicode code point is " + bool2;

        // Print bool1, bool2 values
        System.out.println(str1);
        System.out.println(str2);
    }
}

Output:

c1 is a valid Unicode code point is true
c2 is a valid Unicode code point is false

Program 2:

// Java program to demonstrate the
// Character.isValidCodePoint() method
import java.lang.*;

public class gfg {

    public static void main(String[] args)
    {

        // Create 2 int primitives c1, c2 and assign values
        int c1 = 0x0128, c2 = 0x123ddd;

        boolean bool1 = Character.isValidCodePoint(c1);
        boolean bool2 = Character.isValidCodePoint(c2);

        String str1 = "c1 is a valid Unicode code point is " + bool1;
        String str2 = "c2 is a valid Unicode code point is " + bool2;

        // Print bool1, bool2 values
        System.out.println(str1);
        System.out.println(str2);
    }
}

Output:

c1 is a valid Unicode code point is true
c2 is a valid Unicode code point is false

Reference: https://docs.oracle.com/javase/7/docs/api/java/lang/Character.html#isValidCodePoint(int)