What is the difference between println and print in java?

Answer 1

System.out.print("abc\n"); = System.out.println("abc");

Answer 2

println prints a new line after the thing you want to output
print does not do that

Answer 3

Could I make a suggestion?
I think you should redo the Java course, or even another one than the one provide by sololearn, as you seems to not have acquired the basics, while your profile indicate you've ended it ^^