Demonstrate toUpperCase() and toLowerCase(). : String « Data Type « Java Tutorial

1. Java Tutorial
2. Data Type
3. String

class ChangeCase {
  public static void main(String args[])
  {
    String s = "This is a test.";
   
    System.out.println("Original: " + s);
   
    String upper = s.toUpperCase();
    String lower = s.toLowerCase();
   
    System.out.println("Uppercase: " + upper);
    System.out.println("Lowercase: " + lower);
  }
}