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To check if a character is a lowercase letter in Java, use the Character.isLowerCase() method.
We have a character to check.
char val = 'q';
Now let's use the Character.isLowerCase() method.
if (Character.isLowerCase(val)) { System.out.println("Character is lowercase!"); }else { System.out.println("Character is uppercase!"); }
Now let's see a complete example to check for lowercase letters in Java.
public class Demo { public static void main(String []args) { System.out.println("Checking for Lowercase character..."); char val = 'q'; System.out.println("Character: "+val); if (Character.isLowerCase(val)) { System.out.println("Character is lowercase!"); } else { System.out.println("Character is uppercase!"); } } }
Output Result
Checking for Lowercase character... Character: q Characters are in lowercase!