Adding Inputs into Java proggrams

Hi fellow Java Lovers,
I am currently programming a small game from the knowledge I know, and its just a basic game where you guide yourself around a haunted house and try to find the exit.
Only problem is I don’t know how to program user inputs into the program.

eg. Here is a piece of my code
“
protected void goRightThree()
{
System.out.println(“You walk forward, trying not to make too much noise”);
System.out.println(“You come to a left turn and right turn which way do you go?”);
double randomNumber = Math.random();
if (randomNumber >= 0.5)
{
System.out.println(“You decide to go left”);
System.out.println(“”);
goLeftFour();
}

else
{
System.out.println(“You decide to go right”);
System.out.println(“”);
goRightFour();
}
“

For the time being I just made the direction the user goes as a random decision but what I am aiming to do is make the user of this game be able to choose where he/she goes.
I know people probably thinking I am very new to Java but help would be very nice.

Thanks guys