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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