Java - Character Class isUpperCase() Method

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

Character class isUpperCase() method

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

Syntax

public boolean isUpperCase (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 uppercase.
It returns false, if the given char value is not in uppercase.

Example

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

public class IsUpperCaseOfCharacterClass {
    public static void main(String[] args) {
        // It returns true because the passing 
        // character is in UpperCase   
        boolean result1 = Character.isUpperCase('P');

        // It returns false because the passing 
        // character is not in UpperCase  
        boolean result2 = Character.isUpperCase('p');

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

Output

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

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