This Java program contains a single class called FirstProgramme with a main method that prints the text "Hello JBT!" to the console. The program defines a main method that uses System.out.println to display the message "Hello JBT!" when run.

1. public class FirstProgramme {
public static void main(String args[]) {
System.out.println("Hello JBT!");
}
}
public class FirstProgramme{
Public static void(string arg[]) {
system.out.println("Hello JBT!");
}
}