How to check if a character is an alphabet using a condition

Overview

Alphabets range from A-Z and a-z. With this logic, we can specify our condition. And with the condition, we can determine if a certain character, a number, punctuation mark, escape character or sequence, and so on, is an alphabet.

if((character>='a' && character<='z') || (character>='A' && character<='Z'))
Condition to check if a character is an alphabet

The character contains the character we want to check.

Code

Let's look at the code below:

class HelloWorld {
    public static void main( String args[] ) {
        //create and initialize variables.
        char ch1 = '@';		
        char ch2 = '#';
        char ch3 = 'e';
        char ch4 = 'L';
        // check if alphabets
        checkIfAlphabet(ch1);
        checkIfAlphabet(ch2);
        checkIfAlphabet(ch3);
        checkIfAlphabet(ch4);
    }
    static void checkIfAlphabet(char ch){
        //condition for checking characters.
        if((ch>='a' && ch<='z') || (ch>='A' && ch<='Z'))
        {
            System.out.print(ch + " is an Alphabet\n");
        }
        else
        {
            System.out.print(ch + " is not an Alphabet\n");
        }
    }
}

Explanation

  • Lines 4 to 7: We create and initialize some character variables.
  • Lines 10 to 13: We call checkIfAlphabet() to check if the characters we pass are alphabets or not.
  • Lines 16 to 27: We create a checkIfAlphabet() function that takes a character and checks if it is an alphabet using the specified condition.

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