Question

What do you understand by
" system.out.println " ?????

Answer 1

It is a simple print statement in Java it's helps to return the the required output or print a line in Java it's broadly discussed under Java IO/NIO or basics of programming
for example
String a="hello";
System.out.println (a);

Output on terminal window
hello


try it hope it helps

Answer 2

Hey there!
First of all a grand welcome to Brainly!

Let's come to your answer:
"system.out.println" is a keyword of Java. It is a very important Java Keyword. It helps us to print any statement or value of any variable as result.
And also,
It's not only "system.out.println", but it's "system.out.println( ); "

【where in the between parenthesis we write the message to be printed and variables names whose values is to be printed.】