Java.lang.Character.isLowerCase() Method



The java.lang.Character.isLowerCase(int codePoint) determines if the specified character (Unicode code point) is a lowercase character.

A character is lowercase if its general category type, provided by getType(codePoint), is LOWERCASE_LETTER, or it has contributory property Other_Lowercase as defined by the Unicode Standard.


Following is the declaration for java.lang.Character.isLowerCase() method

public static boolean isLowerCase(int codePoint)


codePoint − the character (Unicode code point) to be tested

Return Value

This method returns true if the character is lowercase, false otherwise.




The following example shows the usage of lang.Character.isLowerCase() method.

package com.tutorialspoint;

import java.lang.*;

public class CharacterDemo {

   public static void main(String[] args) {

      // create 2 int primitives cp1, cp2
      int cp1, cp2;

      // assign values to cp1, cp2
      cp1 = 0x007a;
      cp2 = 0x0fff;

      // create 2 boolean primitives b1, b2
      boolean b1, b2;

       *  check if cp1, cp2 represents lowercase characters
       *  and assign results to b1, b2
      b1 = Character.isLowerCase(cp1);
      b2 = Character.isLowerCase(cp2);

      String str1 = "cp1 represents a lowercase character is " + b1;
      String str2 = "cp2 represents a lowercase character is " + b2;

      // print b1, b2 values
      System.out.println( str1 );
      System.out.println( str2 );

Let us compile and run the above program, this will produce the following result −

cp1 represents a lowercase character is true
cp2 represents a lowercase character is false