public class conCat
{
  public static void main (String[] args)
  {
    String Message1 = "This ";
    String Message2 = "is a Sample ";
    String Message3 = "Application";
    String Message = Message1 + Message2 + Message3;
    System.out.println(Message);
  }
  
}

output:
C:\>javac C:\javaprog\conCat.java

C:\>java conCat
This is a Sample Application

The required output is :

This 
is a sample 
Application