toLowerCase in java code example

Example 1: java string lowercase

string.toLowerCase();

Example 2: java lowercase

"Hello World".toLowerCase()

Example 3: java how to make a string lowercase

/* to find the lowercase or uppercase of a string, 
* we just .toLowerCase() or .toUpperCase()
*/

public class CaseDemonstration {
  public static void main(String[] args) {
    
   	String testString = "THIS IS AN EXAMPLE OF A STRING";
    String testStringLower = testString.toLowerCase(); // make a string lowercase
    System.out.println(testStringLower); // "this is an example of a string"
    String testStringUpper = testStringLower.toUpperCase(); // make it upper again
    System.out.println(testStringUpper); // "THIS IS AN EXAMPLE OF A STRING"
    
  }
}

Example 4: java string to lower case

String s1 = "JAVATPOINT HELLO stRIng";  
String s1lower = s1.toLowerCase(); // s1lower = "javatpoint hello string"

Example 5: 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
   }
}