alphabet or not in java programming
In this article you can learn how to check whether a given character is alphabet or not with 3 different approaches in java.
3 different approaches:-
Approach :- 1 "using if else statement"
package CodeYourslf.allPrograms.checkAlpabet;
import java.util.Scanner;
public class usingIfElse {
public static void main(String []args){
Scanner sc = new Scanner(System.in);
System.out.println("Enter the character: ");
char ch = sc.next().charAt(0);
if(ch >= 'a' && ch <= 'z'){
System.out.println(ch + " is an alphabet.");
}
else if(ch >= 'A' && ch <= 'Z'){
System.out.println(ch + " is an alphabet.");
}
else{
System.out.println(ch + " is not an alphabet. ");
}
}
}
Output
Approach :- 2 "using ternary operator"
package CodeYourslf.allPrograms.checkAlpabet;
import java.util.Scanner;
public class usingTernary {
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
System.out.println("Enter the character: ");
char ch = sc.next().charAt(0);
ch = Character.toLowerCase(ch);
//System.out.println(ch);
String output = (ch >= 'a' && ch <= 'z')?"Alphabet":"Not alphabet";
System.out.println(output);
}
}Approach :- 3 "using inbuilt method"
package CodeYourslf.allPrograms.checkAlpabet;
import java.util.Scanner;
public class usingMethod {
public static void main(String []args){
Scanner sc = new Scanner(System.in);
System.out.println("Enter the alphabet: ");
char ch = sc.next().charAt(0);
boolean result = Character.isAlphabetic(ch);
if(result == true){
System.out.println("Alphabet");
}
else{
System.out.println("Not alphabet");
}
}
}
Details Explanation for how to check alphabet or not in Java
Approach :-1
- Here first I have received a character in ch variable. Then using if condition I have checked ch is greater than 'a' and less than 'z'. This is for small letters.
- Now in else if condition, I have checked for capital letters. If both condition will satisfied it will print "character is alphabet". Otherwise not
Approach :- 2
- Here I have used ternary operator to check the condition.
- You can see in approach 2 I haven't checked for capital letters, because by the help of Character.toLowerCase(ch) method, the entered capital letters will be converted into small.
- and finally using ternary operator, we can easily you can find a character is alphabet or not in java.
Approach :- 3
- Here I have used the java inbuilt method i.e Character.isAlphabetic(ch) to check alphabet or not.
- If the character is an alphabet, it will return true. Here I have store that on result variable.
- finally we can check if the result is equal to true it will print alphabet, otherwise not an alphabet.
Also read :-
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