Java Character isValidCodePoint(int codePoint) Method

Java isValidCodePoint() method is a part of Character class. This method is used to check whether the specified Unicode codepoint is a valid Unicode codepoint value or not.

Syntax:

public static boolean isValidCodePoint(int codePoint)

Parameters:

The parameter passed is the Unicode codepoint to be checked whether it is valid or not.

Returns:

Returns the boolean value true if the specified code point value is between MIN_CODE_POINT and MAX_CODE_POINT inclusive else return false

Example 1:

Here, the characters are checked whether they are valid codepoint values or not.

public class StudyTonight
{  
	public static void main(String[] args)
	{  
		int cp1 = 73;  
		int cp2 = 60;  
		int cp3 = 119;  
		int cp4 = 0x0123;   
		int cp5 = 0x123fff;  

		boolean b1 = Character.isValidCodePoint(cp1);  
		boolean b2 = Character.isValidCodePoint(cp2);  
		boolean b3 = Character.isValidCodePoint(cp3);  
		boolean b4 = Character.isValidCodePoint(cp4);  
		boolean b5 = Character.isValidCodePoint(cp5);  

		System.out.println((char)cp1 +" is valid codepoint value??::  "+b1);  
		System.out.println((char)cp2 +" is valid codepoint value??::  "+b2);  
		System.out.println((char)cp3 +" is valid codepoint value??::  "+b3);  
		System.out.println((char)cp4 +" is valid codepoint value??::  "+b4);  
		System.out.println((char)cp5 +" is valid codepoint value??::  "+b5);  
	}  
} 

I is valid codepoint value??:: true
< is valid codepoint value??:: true
w is valid codepoint value??:: true
? is valid codepoint value??:: true
? is valid codepoint value??:: false

Example 2:

Here is a user-defined example where anyone using this code can put a value of his choice and get the equivalent output.

import java.util.Scanner; 
public class StudyTonight
{  
	public static void main(String[] args)
	{  
		try
		{
			System.out.print("Enter the Unicode character: ");  
			Scanner sc = new Scanner(System.in);        
			int cp = sc.nextInt(); 
			boolean b = Character.isValidCodePoint(cp);
			System.out.println((char)cp + " is a valid codepoint??: "+b);
		}
		catch(Exception e)
		{
			System.out.println("Invalid Input!!");
		}
	}
}

Enter the Unicode character: 11
 is a valid codepoint??: true
*****************************************
Enter the Unicode character: 787
? is a valid codepoint??: true

Live Example:

Here, you can test the live code example. You can execute the example for different values, even can edit and write your examples to test the Java code.