Which code snippet correctly compiles and displays "Hello Good Day!"?

The code snippet that correctly accomplishes the task of compiling and displaying "Hello Good Day!" is effective because it makes use of the print and println methods properly.

Using System.out.print("Hello "); followed by System.out.println("Good Day!"); works as expected because the first line prints "Hello " without moving to a new line. The second line then prints "Good Day!" on the same line, resulting in the output "Hello Good Day!" The println method is designed to print a string followed by a newline, ensuring that if there is no preceding output that requires a newline, the output remains on the same line until specifically told to create a new line.

This choice illustrates the correct usage of print and println, which are both valuable for formatting output. The method signatures and functionality demonstrated in this choice reflect proper conventions in Java for text output, ensuring that if a student understands how these methods work, they can format strings and control flow of output effectively.