Character class’s isletter method can be used to check if character is letter or not.
Method signature
public static boolean isLetter(char ch):
Parameters
ch is primitive character type.
Return type
boolean is primitive character type.
package org.arpit.java2blog;
public class JavaIsLetterMain {
public static void main(String[] args) {
System.out.println(Character.isLetter('a'));
System.out.println(Character.isLetter('Y'));
System.out.println(Character.isLetter('5'));
System.out.println(Character.isLetter('&'));
}
}
When you run above program, you will get below output:
true
true
false
false
true
false
false
That’s all about java Character’s isletter method.
