Java program to check whether a character is an Alphabets or Not

Java program to check whether a character is an Alphabets or Not

In this article, we will discuss the concept of Java program to check whether a character is an Alphabets or Not

In this post, we are going to learn how to write a program to  check whether given character is English alphabet or not  using various ways in Java language

Code to check character is Alphabet or Not

Code to check the character is Alphabet or Not using If else

In this code, we are going to learn how to check  the given character is  English alphabet or not using if-else in Java language

Program 1

import java.util.Scanner;
class Check_Eng_Alphabet1{//class declaration
  
public static void main(String args[]){//main method
char ch;//declare a character variable
Scanner scan=new Scanner(System.in);
//take input from the user for alphabets
System.out.print("Enter a character for check Alphabets: ");
//get input and store in ch variable
ch=scan.next().charAt(0);
//read the character
if((ch>='A' && ch<='Z')||(ch>='a' && ch<='z')){
  //check the given character is Alphabet or not
System.out.print(ch+" is an Alphabet: ");
}
else
{
System.out.print(ch+" is not an Alphabet: ");
}
}
}

When the above code is executed, it produces the following result

Case 1

Enter a character for check Alphabets:
r
r is an Alphabets

Case 2

Enter a character for check Alphabets:
5
5 is not an Alphabets

 

Code to check the character is Alphabet or Not using Ascii

In this code, we are going to learn how to check  the given character is  English alphabet or not, using Ascii value in Java language

Program 2

import java.util.Scanner;
class Check_Eng_Alphabet3{//class declaration
  
public static void main(String args[]){
char ch;//declare character variable
Scanner scan=new Scanner(System.in);
//take input from the user
System.out.print("Enter a character for check Alphabet: ");
//get input and store in ch variable
ch=scan.next().charAt(0);
//read the input from the user

if((ch>=97 && ch<=122)||(ch>=65 && ch<=90)){
System.out.print(ch+" is an Alphabet: ");
}//using Ascii value to check Alphabets
else
{
System.out.print(ch+" is not an Alphabet: ");
}
}
}

When the above code is executed, it produces the following result

Case 1

Enter a character for check Alphabets
A
A is an Alphabets

Case 2

Enter a character for check Alphabets:
#
# is not an Alphabets

 

 

Code to check the character is Alphabet or Not using ternary operator

In this code, we are going to learn how to check  the given character is  English alphabet or not, using ternary operator in Java language

Program 3

import java.util.Scanner;
class Check_Eng_Alphabet2{//class declaration
  
public static void main(String args[]){//java main method
char ch;//declare a character variable
Scanner scan=new Scanner(System.in);
//take input from the user
System.out.print("Enter a character for check Alphabet: ");
//get input and stord in ch variable
ch=scan.next().charAt(0);
//read the character
String result=((ch>='A' && ch<='Z')||(ch>='a' && ch<='z'))
//check the given character is Alphabet or not using ternary
? ch + " is an Alphabet"
: ch + " is not an Alphabet" ;
System.out.print(result);
}
}

 

When the above code is executed, it produces the following result

Case 1

Enter a character for check Alphabets:
Z
Z is an Alphabets

Case 2

Enter a character for check Alphabets:
*
* is not an Alphabets

 

 

Code to check the character is Alphabet or Not using isAlphabetic()

In this code, we are going to learn how to check  the given character is  English alphabet or not, using isAlphabetic() method in Java language

Program 4

import java.util.Scanner;
class Check_Eng_Alphabet4{//class declaration
  
public static void main(String args[]){
char ch;//declare character variable
Scanner scan=new Scanner(System.in);
//take input from the user
System.out.print("Please Enter a character for check Alphabet: ");
//get input and store in ch variable
ch=scan.next().charAt(0);
//read the input from the user

if(Character.isAlphabetic(ch)){
System.out.print(ch+" is an Alphabet: ");
}//check the given character is Alphabet or not using isAlphabetic() function
else
{
System.out.print(ch+" is not an Alphabet: ");
}
}
}

When the above code is executed, it produces the following result

Case 1

Please Enter a character for check Alphabets:
W
W is an Alphabets

Case 2

Please Enter a character for check Alphabets:
$
$ is not an Alphabets

 

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