How to Check if a Character Is a Number in Java

There’s a simple built-in method that we can use to check if a character is a number in Java. Let’s dive in to know it.

Check if a Character Is a Number in Java

The public static boolean method is known as isDigit(). You only need to put the character variable inside the parenthesis and return a relevant boolean value. In the code example down below, we have explained everything in a very simple way.

import java.util.*;
public class Main {
  public static void main(String[] args) {
    // public static boolean isDigit(char ch)
    // Determines if the specified character is a digit.
    char c1 = '6';
    if (Character.isDigit(c1)) {
      System.out.println("Character Is Number");
    } else {
      System.out.println("Character is not a number");
    }
  }
}

Output:

Character Is Number