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Check if a string contains only alphabets in Java using Lambda expression
Let’s say our string is −
String str = "Amit123";
Now, using allMatch() method, get the boolean result whether the string has only alphabets or now −
boolean result = str.chars().allMatch(Character::isLetter);
Following is an example to check if a string contains only alphabets using Lambda Expressions −
Example
class Main {
public static void main(String[] args) {
String str = "Amit123";
boolean result = str.chars().allMatch(Character::isLetter);
System.out.println("String contains only alphabets? = "+result);
}
}Output
Let us see another example with a different input −
String contains only alphabets? = false
Example
class Main {
public static void main(String[] args) {
String str = "Jacob";
boolean result = str.chars().allMatch(Character::isLetter);
System.out.println("String contains only alphabets? = "+result);
}
}Output
String contains only alphabets? = true
Updated on: 20-Sep-2019
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