i don't know if java supports readLine() like C# (I thought it didn't- you have implamented it like C#)
also- and if the way you did it is accurate - then your if statement issues are due to a lone ";"
System.out.println ("Lets Play!");
else if (inanswer1.equals("n"))
System.out.println ("GAME OVER");
Edit: I also did not check to see if the implamentation of inanswer1.equals("") was done correctly- I am only looking @ your if statement and noting the readLine() -bc I thought Java did not support readLine()-