At first, convert the string into character array. Here, name is our string −
char[] ch = name.toCharArray();
Now, loop through and find whether the string contains only alphabets or not. Here, we are checking for not equal to a letter for every character in the string −
for (char c : ch) { if(!Character.isLetter(c)) { return false; }
Following is an example to check if a string contains only alphabets using Regex
public class Main { public static boolean checkAlphabet(String name) { char[] ch = name.toCharArray(); for (char c : ch) { if(!Character.isLetter(c)) { return false; } } return true; } // Main method public static void main(String[] args) { String str1 = "Tom1"; System.out.println("String1 = " + str1); System.out.println("Does String1 contains only alphabets? = " + checkAlphabet(str1)); String str2 = "Tim"; System.out.println("String2 = " + str2); System.out.println("Does String2 contains only alphabets? = " + checkAlphabet(str2)); } }
String1 = Tom1 Does String1 contains only alphabets? = false String2 = Tim Does String2 contains only alphabets? = true