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What is the use of the tolowercase in java

The toLowerCase() method converts a string to lower case letters. Note: The toUpperCase() method converts a string to upper case letters

Source: codegrepper.com

Islowercase java

// check lowercase or not in java..

public class Test {

   public static void main(String args[]) {
      System.out.println(Character.isLowerCase('c')); //true
      System.out.println(Character.isLowerCase('C')); //false
      System.out.println(Character.isLowerCase('\n')); //false
      System.out.println(Character.isLowerCase('\t')); //false
   }
}

Source: tutorialspoint.com

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