Unreachable Statement Error

[Alexei12]

Hello,

I'm new to this, but I am doing Programming, as one of my papers for uni
And also, I am new to Java and Programming

But after I compile it, it says 'unreachable statement'


String generateStatusR eport(Robot karel) {

if(isRobotDead(karel))
    return"The robot is dead." 
else
    return"The robot is alive.";

if(isRobotFacingWall(karel))  //unreachable statement
    return"The robot is facing a wall.";
else
    return"The robot is not facing a wall.";

if(isItemOnGroundAtRobot(karel)) //unreachable statement
    return"There is an item here.";
else
    return"There is no item here.";

For the return statements, it still works with or without the brackets ( )
But I get an error message, especially on the second and third if statement

I don't know why I get an error message saying 'unreachable statement'
I can't see what the problem/mistake is, that I can see
NB: Numbers 1-14 is all code

[chaarmann]

If you have an if-else statement, and in both cases you return from the method (line 2 and 4 in the listing above), then of course the code below the if-else statement (starting at line 6)) will never be executed.
The warning from the compiler tells you that you should rethink your program logic (or just delete the unreachable code).

Remark:
Some people already have implemented their own Boolean that can have three possible values instead of two: TRUE, FALSE and FILE_NOT_FOUND (or similar). I've seen such implementations . But please do no reinvent bad code.