Java - Character Class isLowerCase() Method

Character class isLowerCase() method: Here, we are going to learn about the isLowerCase() method of Character class with its syntax and example. By Preeti Jain Last updated : March 17, 2024

Character class isLowerCase() method

isLowerCase() method is available in java.lang package.
isLowerCase() method is used to check whether the given char value is lowercase or not.
isLowerCase() method does not throw an exception at the time of checking the given char value is lowercase or not.

Syntax

public boolean isLowerCase (Char value);

Parameters

Char value – represents the char value to be checked.

Return Value

The return type of this method is boolean, it returns a boolean value based on the following cases,

It returns true, if the given char value is lowercase.
It returns false, if the given char value is not in lowercase.

Example

// Java program to demonstrate the example 
// of boolean isLowerCase (Char value) method of Character class

public class IsLowerCaseOfCharacterClass {
    public static void main(String[] args) {
        // It returns false because the passing character is 
        // not in LowerCase
        boolean result1 = Character.isLowerCase('P');

        // It returns true because the passing character is 
        // in LowerCase 
        boolean result2 = Character.isLowerCase('p');

        // Display values of result1 , result2
        System.out.println("Character.isLowerCase('P'): " + result1);
        System.out.println("Character.isLowerCase('p'): " + result2);
    }
}

Output

Character.isLowerCase('P'): false
Character.isLowerCase('p'): true

Java - Character isLetter() Method

Java - Character isUpperCase() Method